Gregory Ajemian, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

171659 Issued in NY

Practice address

212 Nassau Blvd
Garden City, NY 11530-1267

Phone

(516) 637-2265

NPI assigned

Jun 17, 2005

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

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.

Specialty

Internal Medicine

Education

Other, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Hospital & facility affiliations

• NYU Langone Home Health Care Home health agency, Garden City, NY, CCN 337187

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Interoperability endpoints

• Direct secure messaging: gregory.ajemian.1@24863.direct.athenahealth.com
• Direct secure messaging: gajemian307575@nyumc.direct-ci.com

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• NYU Langone Hospitals

  • Home Health Agency
  • Mineola, NY
  • NPI 1215931811
  Care Compare affiliation

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

{
    "created_epoch": "1118966400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767916800000",
    "number": "1962407627",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "212 NASSAU BLVD",
            "city": "GARDEN CITY",
            "state": "NY",
            "postal_code": "115301267",
            "telephone_number": "516-637-2265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "212 NASSAU BLVD",
            "city": "GARDEN CITY",
            "state": "NY",
            "postal_code": "115301267",
            "telephone_number": "516-637-2265"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AJEMIAN",
        "first_name": "GREGORY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-17",
        "last_updated": "2026-01-09",
        "certification_date": "2026-01-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD040599L",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "171659",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ahuja Dental Long Island PC
• Sukhdeep Kaur Ahuja, M.D
• Ainsworth Health, LLC
• Stephanie Ann Aizer, LMSW
• Folashade O Ajegba, MD
• Ajt Mobility Inc.
• Olubunmi Akinsika
• Daniel Akinyooye
• Kyra Louise Akley, CLINICAL FELLOW
• Inemesit Akpan, PHARMD

• Internal Medicine Physician in Garden City, NY
• Providers in Garden City, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 9, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.