{
  "schemaVersion": 3,
  "entityId": "0000860025",
  "canonicalName": "ENDEAVOR HEALTH GLENBROOK HOSPITAL",
  "status": "corporate_chain",
  "statusLabel": "Major nonprofit health-system accountability warning",
  "summary": "Glenbrook Hospital is part of Endeavor Health, a large nonprofit integrated health system. The user-supplied PE concern was reviewed, but the strongest current evidence does not support a PE-acquired label: Endeavor says it is not private-equity owned and remains a 501(c)(3), and available PESP tracker rows show no current PE firm. The public warning is major-system/accountability context, not PE ownership.",
  "lastReviewed": "2026-06-29",
  "review": {
    "reviewer": "Codex targeted Endeavor Health correction pass",
    "evidence_grade": "major_system_affiliation_with_pe_claim_refuted",
    "confidence": "high",
    "source_count": 14,
    "ownership_source_count": 6,
    "identity_match_method": "Matched by public map campus record, address/city, and Endeavor official hospital-family evidence.",
    "publication_decision": "Publish as major nonprofit health-system/accountability warning. Do not publish as PE-acquired or PE-controlled unless a future source identifies a direct PE owner or PE-backed contractor."
  },
  "firstGlance": {
    "taxOwnershipType": "Unknown",
    "operator": "Endeavor Health",
    "directPeOwnership": "No documented PE ownership in reviewed sources",
    "peRelationship": "Endeavor official FAQ says the system is not private-equity owned; available PESP rows show Currently PE? = N.",
    "institutionalShareholderContext": "Not applicable to a 501(c)(3) nonprofit parent; public-company shareholder ownership was not found.",
    "populationServedEstimate": 1300000,
    "populationServedLabel": "Endeavor says it serves more than 1.3 million patients across Chicagoland.",
    "careLevel": "NorthShore acute care campus",
    "currentCeo": "Gerald \"J.P.\" Gallagher, President and Chief Executive Officer",
    "previousRelevantCeo": "Needs facility-specific historical leadership review",
    "confidence": "High for Endeavor system affiliation and high for no-PE conclusion from reviewed official/PESP sources; medium for campus-specific CMS completeness where no CCN was matched.",
    "bottomLine": "Glenbrook Hospital should not be green/independent. It belongs in the red major-system warning family because it is controlled/operated inside Endeavor Health. It should also not be described as PE-acquired on current reviewed evidence."
  },
  "communityImpact": {
    "populationServedEstimate": 1300000,
    "populationServedLabel": "Endeavor reports more than 1.3 million patients served across Chicagoland.",
    "estimateMethod": "Official Endeavor about page system-scale statement; not a facility-specific patient count.",
    "catchmentDescription": "Endeavor connects NorthShore, Edward-Elmhurst, Swedish, and Northwest Community hospital markets across Chicagoland.",
    "traumaCareLevel": "Needs facility-specific trauma designation verification",
    "publicFacingCaveat": "System status is descriptive and does not prove causation for any quality, labor, access, or safety outcome."
  },
  "qualityAndLaborContext": {
    "immediateJeopardy2026SourceStatus": "No CMS 2567/state inspection review completed in this targeted ownership pass.",
    "noCausationClaim": true,
    "note": "Glenbrook Hospital is represented as a campus/map record without a matched CMS CCN in this pass. Public map source owner before this review was NOT AVAILABLE. This targeted pass did not verify a PE-backed staffing contract or a current strike/safety incident source for the facility."
  },
  "leadership": [
    {
      "name": "Gerald \"J.P.\" Gallagher",
      "role": "President and Chief Executive Officer",
      "context": "Official Endeavor leadership page lists Gallagher as President and CEO; Form 990 extract provides compensation context.",
      "sourceId": "source-endeavor-leadership",
      "compensation": "FY2024 ProPublica display shows $3,559,263 compensation and $1,632,363 other compensation.",
      "compensationSourceId": "source-propublica-northshore-990"
    },
    {
      "name": "Maria Knecht",
      "role": "President, Glenbrook Hospital",
      "context": "Official Endeavor leadership page lists this facility leadership role for Glenbrook Hospital.",
      "sourceId": "source-endeavor-leadership"
    }
  ],
  "identifiers": {
    "ccn": null,
    "npi": null,
    "historicalCcns": [],
    "aliases": [
      {
        "alias": "ENDEAVOR HEALTH GLENBROOK HOSPITAL",
        "alias_type": "public_map_name_after_review",
        "source_id": "source-hifld-hospitals"
      },
      {
        "alias": "Glenbrook Hospital",
        "alias_type": "Endeavor_display_name",
        "source_id": "source-endeavor-meet"
      }
    ]
  },
  "ownershipHistory": [
    {
      "relationship_id": "endeavor-system-0000860025",
      "relationship_type": "operates",
      "effective_date": "current",
      "end_date": "",
      "status": "confirmed",
      "source_ids": "source-endeavor-meet|source-endeavor-about|source-endeavor-brand-launch|source-endeavor-hospital-locations|source-endeavor-leadership",
      "plain_english_summary": "Glenbrook Hospital is part of the Endeavor Health system family. Endeavor says NorthShore, Edward-Elmhurst, Swedish, and Northwest Community are now united under Endeavor Health."
    },
    {
      "relationship_id": "endeavor-nonprofit-0000860025",
      "relationship_type": "controls",
      "effective_date": "current",
      "end_date": "",
      "status": "confirmed",
      "source_ids": "source-endeavor-meet|source-propublica-northshore-990",
      "plain_english_summary": "Endeavor states it is not owned by private equity and remains a 501(c)(3) nonprofit; ProPublica/IRS data identifies NorthShore University HealthSystem as a 501(c)(3) hospital nonprofit."
    },
    {
      "relationship_id": "endeavor-pe-check-0000860025",
      "relationship_type": "searched_for_pe_ownership",
      "effective_date": "2026-06-29",
      "end_date": "",
      "status": "searched_not_found",
      "source_ids": "source-endeavor-meet|source-hifld-hospitals|source-cms-hospital-all-owners",
      "plain_english_summary": "Glenbrook Hospital does not have a dedicated CCN row in the local April 2026 PESP tracker import; no PE firm evidence was identified for this campus record in this pass. No direct PE owner or PE-backed contractor was identified from the reviewed source set."
    },
    {
      "relationship_id": "endeavor-campus-map-0000860025",
      "relationship_type": "identifies_facility",
      "effective_date": "current",
      "end_date": "",
      "status": "current",
      "source_ids": "source-hifld-hospitals|source-endeavor-meet",
      "plain_english_summary": "Glenbrook Hospital is a campus-style public map record matched to the Endeavor official hospital family; no separate CCN was resolved in this pass."
    }
  ],
  "acquisitionEvents": [
    {
      "date": "current",
      "title": "Endeavor system family documented",
      "detail": "Endeavor official sources say NorthShore University HealthSystem, Edward-Elmhurst Health, Swedish Hospital, and Northwest Community Healthcare are united under one Endeavor Health name; the brand launch release reports more than 300 sites of care and a single integrated medical group.",
      "sourceIds": [
        "source-endeavor-meet",
        "source-endeavor-about",
        "source-endeavor-brand-launch"
      ]
    },
    {
      "date": "current",
      "title": "Private-equity ownership claim checked",
      "detail": "Endeavor states it is not owned by private equity and remains a 501(c)(3) nonprofit. Available PESP tracker rows for matched Endeavor CCNs show Currently PE? = N.",
      "sourceIds": [
        "source-endeavor-meet",
        "source-pesp-hospital-tracker"
      ]
    },
    {
      "date": "2024-12",
      "title": "IRS/Form 990 nonprofit context reviewed",
      "detail": "ProPublica Nonprofit Explorer designates NorthShore University HealthSystem as a 501(c)(3) and displays FY2024 revenue, assets, hospital-facility activity, and executive compensation context.",
      "sourceIds": [
        "source-propublica-northshore-990"
      ]
    }
  ],
  "financialAndUtilizationSeries": [
    {
      "metric_id": "endeavor-endeavor-total-revenue-2024-12",
      "metric_name": "endeavor_total_revenue",
      "period_start": "",
      "period_end": "2024-12",
      "value": "2290000000",
      "unit": "USD",
      "source_id": "source-propublica-northshore-990",
      "methodology_note": "FY2024 revenue displayed by ProPublica Nonprofit Explorer for EIN 36-2167060."
    },
    {
      "metric_id": "endeavor-endeavor-total-assets-2024-12",
      "metric_name": "endeavor_total_assets",
      "period_start": "",
      "period_end": "2024-12",
      "value": "6830000000",
      "unit": "USD",
      "source_id": "source-propublica-northshore-990",
      "methodology_note": "FY2024 total assets displayed by ProPublica Nonprofit Explorer for EIN 36-2167060."
    },
    {
      "metric_id": "endeavor-endeavor-patients-served-2026-06-29",
      "metric_name": "endeavor_patients_served",
      "period_start": "",
      "period_end": "2026-06-29",
      "value": "1300000",
      "unit": "patients",
      "source_id": "source-endeavor-about",
      "methodology_note": "Endeavor Health says it serves more than 1.3 million patients across Chicagoland."
    },
    {
      "metric_id": "endeavor-endeavor-hospital-count-2026-06-29",
      "metric_name": "endeavor_hospital_count",
      "period_start": "",
      "period_end": "2026-06-29",
      "value": "9",
      "unit": "hospitals",
      "source_id": "source-endeavor-meet",
      "methodology_note": "Endeavor Health FAQ lists eight acute care hospitals and one behavioral health hospital."
    },
    {
      "metric_id": "endeavor-endeavor-sites-of-care-2023-12-05",
      "metric_name": "endeavor_sites_of_care",
      "period_start": "",
      "period_end": "2023-12-05",
      "value": "300",
      "unit": "sites",
      "source_id": "source-endeavor-brand-launch",
      "methodology_note": "Endeavor brand launch release reports more than 300 sites of care; value recorded as the stated threshold."
    },
    {
      "metric_id": "endeavor-endeavor-physicians-and-apps-2023-12-05",
      "metric_name": "endeavor_physicians_and_apps",
      "period_start": "",
      "period_end": "2023-12-05",
      "value": "7100",
      "unit": "physicians_and_apps",
      "source_id": "source-endeavor-brand-launch",
      "methodology_note": "Endeavor brand launch release reports more than 7,100 expert physicians and advanced practice providers; value recorded as the stated threshold."
    },
    {
      "metric_id": "endeavor-jp-gallagher-compensation-2024-12",
      "metric_name": "jp_gallagher_compensation",
      "period_start": "",
      "period_end": "2024-12",
      "value": "3559263",
      "unit": "USD",
      "source_id": "source-propublica-northshore-990",
      "methodology_note": "FY2024 ProPublica display column labeled compensation for Gerald P. Gallagher."
    },
    {
      "metric_id": "endeavor-jp-gallagher-other-compensation-2024-12",
      "metric_name": "jp_gallagher_other_compensation",
      "period_start": "",
      "period_end": "2024-12",
      "value": "1632363",
      "unit": "USD",
      "source_id": "source-propublica-northshore-990",
      "methodology_note": "FY2024 ProPublica display column labeled other compensation for Gerald P. Gallagher."
    }
  ],
  "cmsOwnerRecords": [],
  "ownershipChain": {
    "model": "Sponsor, operator, CMS legal-owner/control records, and facility are shown as separate evidence layers.",
    "confidence": "high",
    "nodes": [
      {
        "id": "facility:0000860025",
        "label": "ENDEAVOR HEALTH GLENBROOK HOSPITAL",
        "kind": "hospital",
        "evidence": "public facility record"
      }
    ],
    "edges": [],
    "caveats": [
      "CMS owner rows establish enrolled legal ownership or control roles; they do not always name the ultimate financial sponsor."
    ]
  },
  "ownershipConnections": [
    {
      "entityName": "Endeavor Health",
      "entityKind": "501(c)(3) nonprofit integrated health system",
      "relationship": "parent/system family",
      "classification": "Major nonprofit system-control layer",
      "evidenceSourceIds": [
        "source-endeavor-meet",
        "source-endeavor-about"
      ],
      "note": "Endeavor is the controlling system context for the public map. This is why the row is no longer green."
    },
    {
      "entityName": "Private equity ownership check",
      "entityKind": "Evidence limitation",
      "relationship": "searched-not-found for direct PE ownership",
      "classification": "Not a PE-acquired label",
      "evidenceSourceIds": [
        "source-endeavor-meet",
        "source-pesp-hospital-tracker"
      ],
      "note": "Endeavor says it is not private-equity owned. Available PESP rows for matched Endeavor CCNs show no current PE firm."
    },
    {
      "entityName": "CMS provider data",
      "entityKind": "Government facility identity source",
      "relationship": "campus map record without CCN",
      "classification": "Facility identity / ownership-category context",
      "evidenceSourceIds": [
        "source-hifld-hospitals"
      ],
      "note": "Glenbrook Hospital is represented as a campus/map record without a matched CMS CCN in this pass. Public map source owner before this review was NOT AVAILABLE."
    }
  ],
  "importantLinks": [
    {
      "label": "Meet Endeavor Health",
      "url": "https://www.endeavorhealth.org/about/meet-endeavor-health",
      "sourceId": "source-endeavor-meet",
      "note": "Official FAQ states NorthShore, Edward-Elmhurst, Swedish, and Northwest Community are united as Endeavor Health; lists Edward, Elmhurst, Evanston, Glenbrook, Highland Park, Northwest Community, Skokie, Swedish, and Linden Oaks; states Endeavor is not private-equity owned and remains a 501(c)(3) nonprofit."
    },
    {
      "label": "About Endeavor Health",
      "url": "https://www.endeavorhealth.org/about",
      "sourceId": "source-endeavor-about",
      "note": "Official about page says NorthShore, Edward-Elmhurst, Northwest Community Healthcare, and Swedish Hospital are united as Endeavor Health, serving more than 1.3 million patients across Chicagoland and nine community-based hospitals."
    },
    {
      "label": "NorthShore - Edward-Elmhurst Health is now Endeavor Health",
      "url": "https://www.endeavorhealth.org/press-releases/northshore-edward-elmhurst-health-now-endeavor-health",
      "sourceId": "source-endeavor-brand-launch",
      "note": "Official brand launch release says the combined system followed the merger between NorthShore University HealthSystem, including Swedish Hospital and Northwest Community Healthcare, and Edward-Elmhurst Health. It reports more than 7,100 physicians and APPs, more than 300 sites of care, a single integrated medical group, and the third-largest medical group in Illinois."
    },
    {
      "label": "Endeavor Health hospital locations",
      "url": "https://www.endeavorhealth.org/locations?location_type=11",
      "sourceId": "source-endeavor-hospital-locations",
      "note": "Official location finder lists nine Endeavor hospitals and their addresses, including Linden Oaks Hospital at 852 S. West St., Naperville."
    },
    {
      "label": "Linden Oaks Hospital",
      "url": "https://www.endeavorhealth.org/locations/linden-oaks-hospital",
      "sourceId": "source-endeavor-linden-oaks-location",
      "note": "Official location page identifies Endeavor Health Linden Oaks Hospital at 852 S. West St., Naperville, and describes its behavioral health hospital services."
    },
    {
      "label": "Leadership",
      "url": "https://www.endeavorhealth.org/leadership",
      "sourceId": "source-endeavor-leadership",
      "note": "Official leadership page identifies Gerald J.P. Gallagher as President and CEO and lists facility presidents for Evanston/NorthShore Hospitals, Highland Park, Skokie, Glenbrook, Elmhurst, Edward, Northwest Community, and Linden Oaks."
    },
    {
      "label": "Endeavor Health acquires Diamond Headache Clinic",
      "url": "https://www.endeavorhealth.org/press-releases/endeavor-health-acquires-diamond-headache-clinic",
      "sourceId": "source-endeavor-diamond-acquisition",
      "note": "Official release says Endeavor acquired Diamond Headache Clinic to form the Endeavor Health Diamond Headache & Migraine Center, with physician offices at 1460 N. Halsted St., Suite 501, Chicago, and 2150 Pfingsten Rd., Suite 2260, Glenview; inpatient care is at Northwest Community Hospital."
    },
    {
      "label": "Migraines and other headaches",
      "url": "https://www.endeavorhealth.org/headache",
      "sourceId": "source-endeavor-headache-center",
      "note": "Official service page says Diamond Headache Clinic is now part of Endeavor Health as the Endeavor Health Diamond Headache & Migraine Center and notes the NCH MyChart transition."
    },
    {
      "label": "Northshore University Healthsystem - Nonprofit Explorer",
      "url": "https://projects.propublica.org/nonprofits/organizations/362167060",
      "sourceId": "source-propublica-northshore-990",
      "note": "IRS/ProPublica extract designates the organization as a 501(c)(3), reports hospital facilities, FY2024 revenue of $2.29B, total assets of $6.83B, and Gerald P. Gallagher compensation context."
    },
    {
      "label": "CMS Hospital General Information",
      "url": "https://data.cms.gov/provider-data/dataset/xubh-q36u",
      "sourceId": "source-cms-hospital-general-information",
      "note": "Local cache matched current CMS hospital rows for Evanston 140010, Swedish 140114, Elmhurst 140200, Edward 140231, Northwest Community 140252, and Linden Oaks at Edward 144035. Campus records for Glenbrook, Highland Park, and Skokie are map/HIFLD-style records without a dedicated CCN in this pass."
    },
    {
      "label": "CMS Hospital Enrollments",
      "url": "https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospital-enrollments",
      "sourceId": "source-cms-hospital-enrollments",
      "note": "Local cache matched enrollment rows for the six Endeavor CCNs, including Linden Oaks at Edward 144035. Evanston 140010 uses organization name Endeavor Health Clinical Operations; Northwest Community 140252 uses DBA Endeavor Health Northwest Community Hospital; Linden Oaks 144035 uses Naperville Psychiatric Ventures d/b/a Linden Oaks at Edward."
    },
    {
      "label": "CMS Hospital All Owners",
      "url": "https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospital-all-owners",
      "sourceId": "source-cms-hospital-all-owners",
      "note": "Searched for the matched Endeavor CCNs in the local Hospital All Owners cache; no matching rows were present in this cache, so no PE-owner row was identified there."
    },
    {
      "label": "Hospitals RAPT",
      "url": "https://hifld-geoplatform.hub.arcgis.com/datasets/geoplatform::hospitals/about",
      "sourceId": "source-hifld-hospitals",
      "note": "Facility/campus identity and location source for map records that do not carry a CMS CCN in the public atlas."
    },
    {
      "label": "Private Equity Hospital Tracker",
      "url": "https://pestakeholder.org/private-equity-hospital-tracker/",
      "sourceId": "source-pesp-hospital-tracker",
      "note": "Local imported tracker rows for available Endeavor CCNs show Currently PE? = N and no PE firm for Evanston/NorthShore, Swedish, Elmhurst, Edward, Northwest Community, and Linden Oaks at Edward. Tracker evidence is used as a check, not as the only control source."
    }
  ],
  "systemConnections": [
    {
      "systemName": "Endeavor Health",
      "relationship": "official Endeavor hospital family",
      "evidenceSourceIds": [
        "source-endeavor-meet",
        "source-endeavor-about",
        "source-endeavor-brand-launch",
        "source-endeavor-hospital-locations"
      ],
      "facilities": [
        {
          "name": "Edward Hospital",
          "role": "Acute care hospital",
          "city": "Naperville",
          "state": "IL",
          "recordId": "140231",
          "ccn": "140231",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Elmhurst Hospital",
          "role": "Acute care hospital",
          "city": "Elmhurst",
          "state": "IL",
          "recordId": "140200",
          "ccn": "140200",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Evanston Hospital",
          "role": "NorthShore acute care hospital",
          "city": "Evanston",
          "state": "IL",
          "recordId": "140010",
          "ccn": "140010",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Glenbrook Hospital",
          "role": "NorthShore acute care campus",
          "city": "Glenview",
          "state": "IL",
          "recordId": "0000860025",
          "ccn": "",
          "note": "Current selected facility."
        },
        {
          "name": "Highland Park Hospital",
          "role": "NorthShore acute care campus",
          "city": "Highland Park",
          "state": "IL",
          "recordId": "0001060035",
          "ccn": "",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Northwest Community Hospital",
          "role": "Acute care hospital",
          "city": "Arlington Heights",
          "state": "IL",
          "recordId": "140252",
          "ccn": "140252",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Skokie Hospital",
          "role": "NorthShore acute care campus",
          "city": "Skokie",
          "state": "IL",
          "recordId": "0002560076",
          "ccn": "",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Swedish Hospital",
          "role": "Chicago acute care hospital",
          "city": "Chicago",
          "state": "IL",
          "recordId": "0005460625",
          "ccn": "140114",
          "note": "Connected by Endeavor Health official system evidence."
        },
        {
          "name": "Linden Oaks Behavioral Health Hospital",
          "role": "Behavioral health hospital",
          "city": "Naperville",
          "state": "IL",
          "recordId": "",
          "ccn": "144035",
          "note": "Official Endeavor hospital with CMS CCN 144035; no matching public map record was found in this pass."
        }
      ],
      "relatedFacilityRecordCount": 11,
      "relatedFacilityDataUrl": "/data/related-facilities.json"
    },
    {
      "systemName": "Endeavor Health Diamond Headache & Migraine Center",
      "relationship": "direct practice acquisition by Endeavor Health",
      "evidenceSourceIds": [
        "source-endeavor-diamond-acquisition",
        "source-endeavor-headache-center"
      ],
      "facilities": [
        {
          "name": "Endeavor Health Diamond Headache & Migraine Center - Chicago",
          "role": "Headache and migraine specialty practice",
          "city": "Chicago",
          "state": "IL",
          "recordId": "endeavor-diamond-headache-chicago",
          "note": "Diamond Headache Clinic was acquired by Endeavor to form the Endeavor Health Diamond Headache & Migraine Center."
        },
        {
          "name": "Endeavor Health Diamond Headache & Migraine Center - Glenview",
          "role": "Headache and migraine specialty practice",
          "city": "Glenview",
          "state": "IL",
          "recordId": "endeavor-diamond-headache-glenview",
          "note": "Diamond Headache Clinic was acquired by Endeavor to form the Endeavor Health Diamond Headache & Migraine Center."
        }
      ]
    }
  ],
  "directConnections": [
    "Glenbrook Hospital -> Endeavor Health: official Endeavor hospital-family connection.",
    "Endeavor Health -> Endeavor Health / NorthShore University HealthSystem: nonprofit/501(c)(3) parent-system evidence.",
    "Endeavor official FAQ -> no private-equity ownership claim supported.",
    "Glenbrook Hospital -> no dedicated PESP tracker row found for this campus record."
  ],
  "actions": [
    "Keep this row red as major-system/accountability context, not green/independent.",
    "Do not label the hospital PE-acquired unless a future direct PE-owner or PE-backed contractor source is added.",
    "Next pass: add facility-specific CMS 2567/state inspection, cost-report, charity-care, staffing, and quality trend review."
  ],
  "contradictions": [
    {
      "topic": "Private-equity acquisition claim",
      "claim_a": "User-supplied lead says NorthShore/Endeavor was acquired by private equity.",
      "claim_b": "Endeavor official FAQ says Endeavor is not owned by private equity and remains a 501(c)(3); available PESP tracker rows show Currently PE? = N.",
      "resolution_status": "PE acquisition not supported in this pass; classify as major nonprofit system control."
    }
  ],
  "limitations": [
    "This is a targeted ownership/system-affiliation correction, not a complete quality or safety investigation.",
    "No direct PE ownership or PE-backed staffing/management contract was found in reviewed sources.",
    "CMS Hospital All Owners cache had no matched owner rows for the Endeavor CCNs checked in this pass.",
    "No dedicated CMS CCN was resolved for this campus-style public map record in this pass.",
    "User-reported quality or safety deterioration was not published as fact because it requires separate source-backed quality, inspection, labor, or news evidence."
  ],
  "unavailableFields": [
    "dedicated_cms_ccn_for_campus_record",
    "facility_specific_cms_2567_review",
    "facility_specific_hcris_staffing_trends",
    "facility_specific_charity_care_review",
    "source_backed_current_safety_incident_review"
  ],
  "sources": [
    {
      "source_id": "source-endeavor-meet",
      "title": "Meet Endeavor Health",
      "publisher": "Endeavor Health",
      "publication_date": "",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/about/meet-endeavor-health",
      "reliability_tier": "primary",
      "research_note": "Official FAQ states NorthShore, Edward-Elmhurst, Swedish, and Northwest Community are united as Endeavor Health; lists Edward, Elmhurst, Evanston, Glenbrook, Highland Park, Northwest Community, Skokie, Swedish, and Linden Oaks; states Endeavor is not private-equity owned and remains a 501(c)(3) nonprofit."
    },
    {
      "source_id": "source-endeavor-about",
      "title": "About Endeavor Health",
      "publisher": "Endeavor Health",
      "publication_date": "",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/about",
      "reliability_tier": "primary",
      "research_note": "Official about page says NorthShore, Edward-Elmhurst, Northwest Community Healthcare, and Swedish Hospital are united as Endeavor Health, serving more than 1.3 million patients across Chicagoland and nine community-based hospitals."
    },
    {
      "source_id": "source-endeavor-brand-launch",
      "title": "NorthShore - Edward-Elmhurst Health is now Endeavor Health",
      "publisher": "Endeavor Health",
      "publication_date": "2023-12-05",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/press-releases/northshore-edward-elmhurst-health-now-endeavor-health",
      "reliability_tier": "primary",
      "research_note": "Official brand launch release says the combined system followed the merger between NorthShore University HealthSystem, including Swedish Hospital and Northwest Community Healthcare, and Edward-Elmhurst Health. It reports more than 7,100 physicians and APPs, more than 300 sites of care, a single integrated medical group, and the third-largest medical group in Illinois."
    },
    {
      "source_id": "source-endeavor-hospital-locations",
      "title": "Endeavor Health hospital locations",
      "publisher": "Endeavor Health",
      "publication_date": "",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/locations?location_type=11",
      "reliability_tier": "primary",
      "research_note": "Official location finder lists nine Endeavor hospitals and their addresses, including Linden Oaks Hospital at 852 S. West St., Naperville."
    },
    {
      "source_id": "source-endeavor-linden-oaks-location",
      "title": "Linden Oaks Hospital",
      "publisher": "Endeavor Health",
      "publication_date": "",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/locations/linden-oaks-hospital",
      "reliability_tier": "primary",
      "research_note": "Official location page identifies Endeavor Health Linden Oaks Hospital at 852 S. West St., Naperville, and describes its behavioral health hospital services."
    },
    {
      "source_id": "source-endeavor-leadership",
      "title": "Leadership",
      "publisher": "Endeavor Health",
      "publication_date": "",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/leadership",
      "reliability_tier": "primary",
      "research_note": "Official leadership page identifies Gerald J.P. Gallagher as President and CEO and lists facility presidents for Evanston/NorthShore Hospitals, Highland Park, Skokie, Glenbrook, Elmhurst, Edward, Northwest Community, and Linden Oaks."
    },
    {
      "source_id": "source-endeavor-diamond-acquisition",
      "title": "Endeavor Health acquires Diamond Headache Clinic",
      "publisher": "Endeavor Health",
      "publication_date": "2025-11-03",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/press-releases/endeavor-health-acquires-diamond-headache-clinic",
      "reliability_tier": "primary",
      "research_note": "Official release says Endeavor acquired Diamond Headache Clinic to form the Endeavor Health Diamond Headache & Migraine Center, with physician offices at 1460 N. Halsted St., Suite 501, Chicago, and 2150 Pfingsten Rd., Suite 2260, Glenview; inpatient care is at Northwest Community Hospital."
    },
    {
      "source_id": "source-endeavor-headache-center",
      "title": "Migraines and other headaches",
      "publisher": "Endeavor Health",
      "publication_date": "",
      "retrieved_at": "2026-06-29",
      "url": "https://www.endeavorhealth.org/headache",
      "reliability_tier": "primary",
      "research_note": "Official service page says Diamond Headache Clinic is now part of Endeavor Health as the Endeavor Health Diamond Headache & Migraine Center and notes the NCH MyChart transition."
    },
    {
      "source_id": "source-propublica-northshore-990",
      "title": "Northshore University Healthsystem - Nonprofit Explorer",
      "publisher": "ProPublica Nonprofit Explorer / IRS Form 990 extract",
      "publication_date": "2025-11-17",
      "retrieved_at": "2026-06-29",
      "url": "https://projects.propublica.org/nonprofits/organizations/362167060",
      "reliability_tier": "government-derived",
      "research_note": "IRS/ProPublica extract designates the organization as a 501(c)(3), reports hospital facilities, FY2024 revenue of $2.29B, total assets of $6.83B, and Gerald P. Gallagher compensation context."
    },
    {
      "source_id": "source-cms-hospital-general-information",
      "title": "CMS Hospital General Information",
      "publisher": "Centers for Medicare and Medicaid Services",
      "publication_date": "",
      "retrieved_at": "2026-06-24",
      "url": "https://data.cms.gov/provider-data/dataset/xubh-q36u",
      "reliability_tier": "government",
      "research_note": "Local cache matched current CMS hospital rows for Evanston 140010, Swedish 140114, Elmhurst 140200, Edward 140231, Northwest Community 140252, and Linden Oaks at Edward 144035. Campus records for Glenbrook, Highland Park, and Skokie are map/HIFLD-style records without a dedicated CCN in this pass."
    },
    {
      "source_id": "source-cms-hospital-enrollments",
      "title": "CMS Hospital Enrollments",
      "publisher": "Centers for Medicare and Medicaid Services",
      "publication_date": "",
      "retrieved_at": "2026-06-24",
      "url": "https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospital-enrollments",
      "reliability_tier": "government",
      "research_note": "Local cache matched enrollment rows for the six Endeavor CCNs, including Linden Oaks at Edward 144035. Evanston 140010 uses organization name Endeavor Health Clinical Operations; Northwest Community 140252 uses DBA Endeavor Health Northwest Community Hospital; Linden Oaks 144035 uses Naperville Psychiatric Ventures d/b/a Linden Oaks at Edward."
    },
    {
      "source_id": "source-cms-hospital-all-owners",
      "title": "CMS Hospital All Owners",
      "publisher": "Centers for Medicare and Medicaid Services",
      "publication_date": "",
      "retrieved_at": "2026-06-24",
      "url": "https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospital-all-owners",
      "reliability_tier": "government",
      "research_note": "Searched for the matched Endeavor CCNs in the local Hospital All Owners cache; no matching rows were present in this cache, so no PE-owner row was identified there."
    },
    {
      "source_id": "source-hifld-hospitals",
      "title": "Hospitals RAPT",
      "publisher": "Homeland Infrastructure Foundation-Level Data",
      "publication_date": "current public layer",
      "retrieved_at": "2026-06-24",
      "url": "https://hifld-geoplatform.hub.arcgis.com/datasets/geoplatform::hospitals/about",
      "reliability_tier": "government",
      "research_note": "Facility/campus identity and location source for map records that do not carry a CMS CCN in the public atlas."
    },
    {
      "source_id": "source-pesp-hospital-tracker",
      "title": "Private Equity Hospital Tracker",
      "publisher": "Private Equity Stakeholder Project",
      "publication_date": "2026-04-03 snapshot",
      "retrieved_at": "2026-06-29",
      "url": "https://pestakeholder.org/private-equity-hospital-tracker/",
      "reliability_tier": "research",
      "research_note": "Local imported tracker rows for available Endeavor CCNs show Currently PE? = N and no PE firm for Evanston/NorthShore, Swedish, Elmhurst, Edward, Northwest Community, and Linden Oaks at Edward. Tracker evidence is used as a check, not as the only control source."
    }
  ],
  "descriptiveTrends": []
}