David A Fessler, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

044153 Issued in DC

Practice address

1334 Kalmia Rd NW
Washington, DC 20012-1445

Phone

(314) 458-6724

NPI assigned

Apr 3, 2007

Sex

Male

Sole proprietor

No

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

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

Practice roles

Locations

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.

• Whitman-Walker Clinic, Inc

  • Federally Qualified Health Center (FQHC)
  • Washington, DC
  • NPI 1184616617
  Medicare reassignment NPD
• Whitman-Walker Clinic Inc.

  • Community/Retail Pharmacy
  • Washington, DC
  • NPI 1003316316
  NPD

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

{
    "created_epoch": "1175558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761868800000",
    "number": "1457472607",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1334 KALMIA RD NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200121445",
            "telephone_number": "314-458-6724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1334 KALMIA RD NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200121445",
            "telephone_number": "314-458-6724"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FESSLER",
        "first_name": "DAVID",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-04-03",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DC",
            "license": "044153",
            "primary": true
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "DC",
            "license": "044153",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rachel Marie Ferrier, RN
• Anna Teresita Ferrigan, GC
• Laura Ferris
• Charles Ferron
• Freweini Woldemicael Fessehaye
• Bethlehem Fetehayehu
• Agegnhuwork Fetene
• Ayehunie Fetene
• John F. Fetsch, M.D.
• Samantha Fetterman, CCC-SLP

• Internal Medicine Physician in Washington, DC
• Providers in Washington, DC by specialty
• Internal Medicine Physician in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 2025; 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.