William Lloyd Duncan, M.D.

Key facts

NPI

1477533685

Entity type

Individual (NPI type 1)

Primary specialty

Specialist 174400000X

License

3146 (TN)

Practice address

300 W Peach St
Martin, TN 38237-3949

Phone

(731) 587-2525

Fax

(731) 587-2555

NPI assigned

Jan 23, 2006

Sex

Male

Sole proprietor

No

Organizations & group practices 1

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.

• Martin Clinic Corp Family Medicine Physician · Martin, TN · NPI 1568465102
  NPD (past)

Medicare participation

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

National Provider Directory

Medicare enrollment (NPD)

Yes

Credentials

Doctor of Medicine

Practice roles

Specialties & licenses

Addresses

Other identifiers

The complete NPPES record for this NPI in the NPI Registry API JSON format, last updated by the provider on Aug 9, 2026.

{
    "created_epoch": "1137974400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786233600000",
    "number": "1477533685",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 W PEACH ST",
            "city": "MARTIN",
            "state": "TN",
            "postal_code": "382373949",
            "telephone_number": "731-587-2525",
            "fax_number": "731-587-2555"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 W PEACH ST",
            "city": "MARTIN",
            "state": "TN",
            "postal_code": "382373949",
            "telephone_number": "731-587-2525",
            "fax_number": "731-587-2555"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNCAN",
        "first_name": "WILLIAM",
        "middle_name": "LLOYD",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-23",
        "last_updated": "2026-08-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "TN",
            "license": "3146",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3119139",
            "state": "TN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Martin, TN

• Diversicare Leasing LP
• Tamara Dodd
• Donald P Wright & a Peter Bukeavich PTRS
• Daniel Wayne Donaldson II, O.D.
• Dr Donnie Ray Davis OD
• William Craig Eason, MD
• Phillip Otto Elliott, DC
• Samantha Elliott
• Alexis J Ericksondavis, LMT
• Bailee Esch

All providers in Martin, TN · Specialist in Tennessee