Gary M Hahn, M.D.

Primary specialty

Dermatology PhysicianTaxonomy code 207N00000X

License

142516 Issued in NY

Practice address

283 Commack Road
Suite 115
Commack, NY 11725-3400

Phone

(631) 462-2300

Fax

(631) 462-0159

NPI assigned

Nov 28, 2005

Last updated

Aug 30, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Skills Unlimited, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Oakdale, NY
  • NPI 1487789392
  NPD (past)

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

{
    "created_epoch": "1133136000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788048000000",
    "number": "1336122985",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "283 COMMACK ROAD",
            "address_2": "SUITE 115",
            "city": "COMMACK",
            "state": "NY",
            "postal_code": "117253400",
            "telephone_number": "631-462-2300",
            "fax_number": "631-462-0159"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "283 COMMACK ROAD",
            "address_2": "SUITE 115",
            "city": "COMMACK",
            "state": "NY",
            "postal_code": "117253400",
            "telephone_number": "631-462-2300",
            "fax_number": "631-462-0159"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAHN",
        "first_name": "GARY",
        "middle_name": "M",
        "name_prefix": "Mr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-11-28",
        "last_updated": "2026-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "NY",
            "license": "142516",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gurwin Jewish Geriatric Center
• Gurwin Jewish Nursing & Rehab Center
• Leah Gustavson, PA
• Shari Haber, M.S. L.SP.
• Brian James Haensly, LCSW-R
• Ann Margaret Hajduk-Bennett, DO
• Jennifer Hajek
• Karen K Hall, MS, CCC
• Megan Hall
• Mishele I Halpern, LCSW

• Dermatology Physician in Commack, NY
• Providers in Commack, NY by specialty
• Dermatology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 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.