Howard Leaf, M.D.

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

159318 Issued in NY

Practice address

423 E 23Rd St
VA New York Harbor HCS
New York, NY 10010-5011

Phone

(212) 686-7500

NPI assigned

May 18, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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

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

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

{
    "created_epoch": "1147910400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1942253943",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "423 E 23RD ST",
            "address_2": "VA NEW YORK HARBOR HCS",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100105011"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "423 E 23RD ST",
            "address_2": "VA NEW YORK HARBOR HCS",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100105011",
            "telephone_number": "212-686-7500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEAF",
        "first_name": "HOWARD",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "NY",
            "license": "159318",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kenneth Aiden Leacock, P.T.
• Lead by Example, Reverse the Trend
• Lead by Example, Reverse the Trend
• Sean T Leadem, PHD
• Avi Philip Sendzul Leader, MD
• Stephanie Leaf, PT
• Leah Kaufman Nutrition LLC
• Leah Michelle Consulting LLC
• Megan Leahey, LMSW
• Caroline Jean Leahy

• Infectious Disease Physician in New York, NY
• Providers in New York, NY by specialty
• Infectious Disease Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.