William Richard Fox, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

MD600004278 Issued in DC

Practice address

2401 E St., NW
Sa-1
Washington, DC 20037

Phone

(202) 647-4000

NPI assigned

May 12, 2014

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in GU

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Emergency Medicine

Education

Icahn School of Medicine at Mount Sinai, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Guam Memorial HospitalGroup PAC ID 5890781694, 132 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Guam Memorial Hospital Authority Hospital, Tamuning, GU, CCN 650001

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wfox1101023@valleyhealth.direct-ci.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Guam Memorial Hospital

  • General Acute Care Hospital
  • Oka Tamuning, GU
  • NPI 1366519027
  Medicare reassignment Care Compare group NPD
• Guam Memorial Hospital

  • Skilled Nursing Facility
  • Oka Tamuning, GU
  • NPI 1952479131
  NPD
• C3Erow, LLC

  • Emergency Care Clinic/Center
  • Rockport, TX
  • NPI 1548700990
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Guam Memorial Hospital

  • General Acute Care Hospital
  • Oka Tamuning, GU
  • NPI 1366519027
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1399852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768435200000",
    "number": "1588075634",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2401 E. ST NW",
            "address_2": "SA-1",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "20037",
            "telephone_number": "202-647-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2401 E ST., NW",
            "address_2": "SA-1",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "20037",
            "telephone_number": "202-647-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FOX",
        "first_name": "WILLIAM",
        "middle_name": "RICHARD",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-05-12",
        "last_updated": "2026-01-15",
        "certification_date": "2026-01-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "DC",
            "license": "MD600004278",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "R0572",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Madeleine Fox, LGSW
• Mitchell Fox, OTR/L
• Niya Madinah Fox
• Stephen Charles Fox, M.D.
• Susan C Fox, LGPC
• John Foxen, MD
• Foxhall Internists,PC
• Foxhall Medicine, PLLC
• Foxhall Pediatrics PC
• Foxhall Podiatry Associates, PC

• Emergency Medicine Physician in Washington, DC
• Providers in Washington, DC by specialty
• Emergency Medicine Physician in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.