David Allan Williamson, M.B., CH.B.

Primary specialty

Brain Injury Medicine (Psychiatry & Neurology) PhysicianTaxonomy code 2084P0301X

License

R0977 Issued in TX

Practice address

Walter Reed National Military Ctr
8901 Rockville Pike
Bethesda, MD 20889-0001

Phone

(301) 295-1928

Fax

(410) 571-0625

NPI assigned

Aug 18, 2008

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1219017600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772150400000",
    "number": "1215183512",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8901 ROCKVILLE PIKE",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208890001",
            "telephone_number": "410-463-0560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "WALTER REED NATIONAL MILITARY CTR",
            "address_2": "8901 ROCKVILLE PIKE",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208890001",
            "telephone_number": "301-295-1928",
            "fax_number": "410-571-0625"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "DAVID",
        "middle_name": "ALLAN",
        "credential": "M.B., CH.B.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-08-18",
        "last_updated": "2026-02-27",
        "certification_date": "2026-02-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0301X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Brain Injury Medicine",
            "state": "TX",
            "license": "D43756",
            "primary": false
        },
        {
            "code": "2084B0040X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Behavioral Neurology & Neuropsychiatry",
            "state": "TX",
            "license": "R0977",
            "primary": false
        },
        {
            "code": "2084B0040X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Behavioral Neurology & Neuropsychiatry",
            "state": "MD",
            "license": "D43756",
            "primary": false
        },
        {
            "code": "2084P0301X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Brain Injury Medicine",
            "state": "TX",
            "license": "R0977",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stacey A. Williams, PH.D.
• Tamia Williams
• Tracy B Williams, PT
• Yanique Williams, LICSW
• Yolanda Williams, DO
• Tovah Jean Williamson, MD
• Sharon Nancy Willig, MA, CCC-SLP
• Hannah Willison, AU.D.
• Lisa Willoughby
• Theodore Willsey, PT, DPT, CSCS

• Brain Injury Medicine (Psychiatry & Neurology) Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Brain Injury Medicine (Psychiatry & Neurology) Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 27, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.