Leo Gefter

Primary specialty

Addiction Psychiatry PhysicianTaxonomy code 2084P0802X

License

83998 Issued in CT

Practice address

34 Park St
New Haven, CT 06519-1109

Phone

(201) 410-0611

NPI assigned

Mar 30, 2022

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

Medicare fee-for-service enrollment

Enrolled in CT

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

State licenses

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

{
    "created_epoch": "1648598400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781481600000",
    "number": "1164162087",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "405 FOUNTAIN ST # 2",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065152613",
            "telephone_number": "201-410-0611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "34 PARK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065191109",
            "telephone_number": "201-410-0611"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 George St Ste 900",
            "address_purpose": "LOCATION",
            "city": "New Haven",
            "state": "CT",
            "postal_code": "065116660",
            "country_code": "US",
            "telephone_number": "203-785-2117",
            "fax_number": "203-785-7357",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GEFTER",
        "first_name": "LEO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-30",
        "last_updated": "2026-06-15",
        "certification_date": "2026-06-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0802X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Addiction Psychiatry",
            "state": "CT",
            "license": "83998",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kadian Dian Gbado, MSW
• Jaclyn Geary, RN
• Rose Anne Gedeon, MD
• Jacqueline Hirsh Geer, M.D.
• Margaret Kerstin Geertz, DO
• Jeff Gehlhausen, MD, PHD
• Reed Stratton Geisler, MD
• Odeed Geismar, CRNA
• Daniel I Geisser, MD
• Robert Alan Gelfand, M.D.

• Addiction Psychiatry Physician in New Haven, CT
• Providers in New Haven, CT by specialty
• Addiction Psychiatry Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 15, 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.