Jonathan Treat Walker, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

D0053820 Issued in MD

Practice address

4710 Bethesda Ave
Suite 1303
Bethesda, MD 20814-5213

Phone

(301) 922-8406

Fax

(301) 654-0236

NPI assigned

Nov 3, 2006

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1162512000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1033298534",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4710 BETHESDA AVE",
            "address_2": "SUITE 1303",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208145213",
            "telephone_number": "301-922-8406",
            "fax_number": "301-654-0236"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4710 BETHESDA AVE",
            "address_2": "SUITE 1303",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208145213",
            "telephone_number": "301-922-8406",
            "fax_number": "301-654-0236"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALKER",
        "first_name": "JONATHAN",
        "middle_name": "TREAT",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-03",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MD",
            "license": "D0053820",
            "primary": true
        },
        {
            "code": "2084P0804X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
            "state": "MD",
            "license": "D0053820",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amanda Walker, MD
• Carl M. Walker, LCSW-C
• Dana Walker
• Erika Walker, MD
• Ian S Walker
• Katherine Ann Walker, M.D.
• Lauretta Walker, MPT, DPT
• Melissa S. Walker, ATR-BC, LPAT
• Patrick Franklin Walker, M.D.
• Princess Walker

• Psychiatry Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Psychiatry Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.