James Edward Duncan, M.D.

Primary specialty

Colon & Rectal Surgery PhysicianTaxonomy code 208C00000X

License

0101057915 Issued in VA

Practice address

National Naval Medical Center, Dept. of Surgery
8901 Wisconsin Ave.
Bethesda, MD 20889-0001

Phone

(301) 295-4603

NPI assigned

Aug 10, 2005

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

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 DC

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

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": "1123632000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1508867797",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6102 WILSON LN",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208173111",
            "telephone_number": "301-320-3909"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "NATIONAL NAVAL MEDICAL CENTER, DEPT. OF SURGERY",
            "address_2": "8901 WISCONSIN AVE.",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208890001",
            "telephone_number": "301-295-4603"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNCAN",
        "first_name": "JAMES",
        "middle_name": "EDWARD",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-10",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208C00000X",
            "taxonomy_group": "",
            "desc": "Colon & Rectal Surgery",
            "state": "VA",
            "license": "0101057915",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Debra Leigh Dula, CRNP
• Rachel Victoria Dulebohn, D.M.D.
• Elizabeth Joy Dullea, MD
• Andrew Dullnig, DMD, FACS
• Cynthia Elizabeth Dunbar, M.D.
• John M Dunford, MD
• Susan Gibson Dunlow, M.D.
• Ashley Jennifer Dunn, M.D.
• Barbara Karen Dunn, MD
• Hilari G. Dunn, D.D.S.

• Colon & Rectal Surgery Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Colon & Rectal Surgery Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.