{
  "@context": [
    "https://schema.org",
    {
      "ec": "https://entitycodes.org/vocab#"
    }
  ],
  "@type": "DefinedTerm",
  "@id": "https://entitycodes.org/naics/621491/",
  "identifier": "621491",
  "name": "HMO Medical Centers",
  "description": "This U.S. industry comprises establishments with physicians and other medical staff primarily engaged in providing a range of outpatient medical services to the health maintenance organization (HMO) subscribers with a focus generally on primary health care.  These establishments are owned by the HMO.  Included in this industry are HMO establishments that both provide health care services and underwrite health and medical insurance policies.",
  "url": "https://entitycodes.org/naics/621491/",
  "inDefinedTermSet": {
    "@type": "DefinedTermSet",
    "name": "NAICS 2022",
    "url": "https://entitycodes.org/naics/"
  },
  "sameAs": [
    "https://www.census.gov/naics/?input=621491&year=2022"
  ],
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "SBA size standard",
      "value": "$44,500,000 receipts",
      "unitText": "USD receipts",
      "description": "13 CFR 121.201, as-of 2023-03-17"
    },
    {
      "@type": "PropertyValue",
      "name": "IRS PBA code",
      "value": "621491",
      "description": "IRS Principal Business Activity code (method: exact)"
    },
    {
      "@type": "PropertyValue",
      "name": "US establishments",
      "value": 2018,
      "description": "Census County Business Patterns 2023"
    }
  ],
  "ec:crosswalk": [
    {
      "system": "SIC 1987",
      "code": "8011",
      "title": "Offices and Clinics of Doctors of Medicine",
      "confidence": "chain",
      "via": "SIC1987:8011\u2192NAICS1997:621491\u21922002:621491\u21922007:621491\u21922012:621491\u21922017:621491\u21922022:621491",
      "url": "https://entitycodes.org/sic/8011/"
    }
  ],
  "ec:provenance": {
    "definition": {
      "source": "US Census 2022 NAICS Manual",
      "type": "US gov \u2014 public domain"
    },
    "crosswalk": {
      "source": "Census NAICS\u2194SIC concordance",
      "method": "transitive chain (NOT direct)"
    },
    "sba_size_standard": {
      "source": "SBA Table of Size Standards (13 CFR 121.201)",
      "as_of": "2023-03-17"
    },
    "establishments": {
      "source": "Census County Business Patterns",
      "year": 2023
    }
  },
  "license": "https://www.usa.gov/government-works",
  "dateModified": "2026-07-21",
  "isPartOf": {
    "@type": "DefinedTerm",
    "identifier": "6214",
    "name": "Outpatient Care Centers",
    "@id": "https://entitycodes.org/naics/6214/"
  }
}