Patrick Williamson

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD.50163 Issued in AL

Practice address

625 19TH St S
Birmingham, AL 35233-1900

Phone

(205) 934-9666

NPI assigned

Mar 31, 2023

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 AL

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

Internal Medicine

Education

Other, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Oak Mountain Group Services, LLC

  • Hospitalist Physician
  • Birmingham, AL
  • NPI 1366840761
  Medicare reassignment

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

{
    "created_epoch": "1680220800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775692800000",
    "number": "1730884776",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "625 19TH ST S",
            "city": "BIRMINGHAM",
            "state": "AL",
            "postal_code": "352331900",
            "telephone_number": "205-934-9666"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "625 19TH ST S",
            "city": "BIRMINGHAM",
            "state": "AL",
            "postal_code": "352331900",
            "telephone_number": "205-934-9666"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "PATRICK",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-31",
        "last_updated": "2026-04-09",
        "certification_date": "2026-04-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "AL",
            "license": "MD.50163",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Daniel Oscar Williamson, R.PH.
• Howard Foster Williamson III, CRNA
• Jaicee Williamson
• Jon Scott Williamson, MD
• Katrina Ann Williamson
• Paul Daniel Williamson
• Rebecca Jane Williamson, ALC
• Sarah Catherine Williamson
• Anna Williard
• Brianna M Williford, CRNP

• Internal Medicine Physician in Birmingham, AL
• Providers in Birmingham, AL by specialty
• Internal Medicine Physician in Alabama

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 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.