John David Klement, MD, PHD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

329318 Issued in NY

Practice address

1275 York Ave
New York, NY 10065-6007

Phone

(646) 632-9223

NPI assigned

Mar 27, 2022

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

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Interoperability endpoints

• Direct secure messaging: jklement96358@mskcc.direct-ci.com

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

{
    "created_epoch": "1648339200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1735257600000",
    "number": "1679223192",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "646-632-9223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "646-632-9223"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLEMENT",
        "first_name": "JOHN",
        "middle_name": "DAVID",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-27",
        "last_updated": "2024-12-27",
        "certification_date": "2024-12-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "NY",
            "license": "329318",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jack Kleinstein, MHC-LP
• Larry Kleinstein
• Sarah Kleinstein
• Nikki Kleitzel
• Elizabeth Klele
• Patricia D. Klementowski, ANP
• Gerri Klemm
• Emily J. Klemmer, L.C.S.W.
• Emily Joan Klemp, AU.D.
• Oleg Klempner, D.D.S.

• Hematology & Oncology Physician in New York, NY
• Providers in New York, NY by specialty
• Hematology & Oncology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 27, 2024; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.