Brianna Williams, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

A179971 Issued in CA

Practice address

4244 Riverwalk Pkwy Ste 290
Riverside, CA 92505-3373

Phone

(951) 520-9392

NPI assigned

Mar 18, 2019

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

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

General Surgery

Education

Un of California, Irvine, College of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

United Medical DoctorsGroup PAC ID 2961305651, 168 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/9170/brand/1/csg/1/fhir/r4

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.

• United Medical Doctors

  • Gastroenterology Physician
  • Murrieta, CA
  • NPI 1770559981
  Medicare reassignment Care Compare group NPD
• United Medical Doctors

  • Orthopaedic Surgery Physician
  • San Diego, CA
  • NPI 1194554675
  NPD

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

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772582400000",
    "number": "1548729643",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4244 RIVERWALK PKWY STE 290",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925053373",
            "telephone_number": "951-520-9392"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4244 RIVERWALK PKWY STE 290",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925053373",
            "telephone_number": "951-520-9392"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "BRIANNA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-18",
        "last_updated": "2026-03-04",
        "certification_date": "2026-03-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A179971",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anthony D Williams, LMFT
• Ashya Rosetta Marie Williams
• Ayanna Williams, RN
• Bo Williams
• Breanna Williams
• Brittney Nicole Williams
• Carolyn Douglas Williams, LCSW
• Chimera Charmaine Williams, DENTAL HYGIENIST
• Cierra Williams
• Crystal S Williams

• Surgery Physician in Riverside, CA
• Providers in Riverside, CA by specialty
• Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 4, 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.