William Thomas Callahan, MD

Primary specialty

SpecialistTaxonomy code 174400000X

License

14469 Issued in GA

Practice address

663 Lanier Park Dr
Gainesville, GA 30501

Phone

(770) 536-8109

Fax

(770) 536-3203

NPI assigned

May 23, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• Gwinnett Dermatology PC D/B/a Georgia Dermatology Partners

  • Dermatology Physician
  • Snellville, GA
  • NPI 1477596203
  NPD (past)

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

{
    "created_epoch": "1116806400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1212019200000",
    "number": "1356344535",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "663 LANIER PARK DR",
            "city": "GAINESVILLE",
            "state": "GA",
            "postal_code": "305012059",
            "telephone_number": "770-536-8109",
            "fax_number": "770-536-3203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "663 LANIER PARK DR",
            "city": "GAINESVILLE",
            "state": "GA",
            "postal_code": "30501",
            "telephone_number": "770-536-8109",
            "fax_number": "770-536-3203"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALLAHAN",
        "first_name": "WILLIAM",
        "middle_name": "THOMAS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-05-23",
        "last_updated": "2008-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "GA",
            "license": "14469",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00162126A",
            "state": "GA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Molly Calderon
• Shannon Calhoun, LCSW
• Calixto J Cornavaca Diaz MD LLC
• Jessica Callahan, FNP-C
• Michael Harris Callahan, M.D.
• Lauren Callaway, PHARMD
• Angela M Calvert, NP
• Micaela Rose Campagna, PA-C
• Donald J Campbell, MD
• Matthew Drew Campbell, MD

• Specialist in Gainesville, GA
• Providers in Gainesville, GA by specialty
• Specialist in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 2008; 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.