David Greenblatt, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

25MA04850800 Issued in NJ

Practice address

223 N Van Dien Ave
Ridgewood, NJ 07450-2726

Phone

(201) 634-5403

Fax

(201) 634-5765

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

Other identifiers 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

• Clare Medical of New Jersey LLC

  • Geriatric Medicine (Family Medicine) Physician
  • Mount Holly, NJ
  • NPI 1255718276
  Authorized official Same address or phone
• Premier Radiation Oncology of Nassau, PC

  • Radiation Oncology Physician
  • Great Neck, NY
  • NPI 1780857409
  NPD (past) Authorized official
• Bayonne Radiation Oncology Associates, LLC

  • Radiation Oncology Physician
  • Mahwah, NJ
  • NPI 1902858020
  NPD (past)
• Urology Specialty Care PA

  • Radiation Oncology Physician
  • Hackensack, NJ
  • NPI 1326330366
  NPD (past)
• Valley Radiation Oncology Assoc PA

  • Radiation Oncology Physician
  • Ridgewood, NJ
  • NPI 1841243771
  NPD (past)
• Advanced Radiation Oncology Services of Queens

  • Radiation Oncology Physician
  • Astoria, NY
  • NPI 1689783805
  NPD (past)
• Catskill Radiation Oncology Consultants, PLLC

  • Radiation Oncology Physician
  • Middletown, NY
  • NPI 1922052315
  NPD (past)
• Metropolitan Specialty Physicians

  • Urology Physician
  • Elmhurst, NY
  • NPI 1659589083

  Radiation Oncology

  NPD (past)

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": "1063465490",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 LETHBRIDGE PLZ",
            "address_2": "ROUTE 17 NORTH, SUITE #20",
            "city": "MAHWAH",
            "state": "NJ",
            "postal_code": "074302126",
            "telephone_number": "201-684-1616",
            "fax_number": "201-684-1661"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "223 N VAN DIEN AVE",
            "city": "RIDGEWOOD",
            "state": "NJ",
            "postal_code": "074502726",
            "telephone_number": "201-634-5403",
            "fax_number": "201-634-5765"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENBLATT",
        "first_name": "DAVID",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NJ",
            "license": "25MA04850800",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0971804",
            "state": "NJ"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01907657",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Greatest Moments Counseling, Inc
• Biljana Grebinnik
• Judith Green, LCSW
• Barton H Greenberg, LCSW
• William Michael Greenberg, M.D.
• Elizabeth Greenlee, LCSW
• Marni Leigh Greenwald, LCAT, BC
• Robert Greenwald
• Amrit Grewal, MD
• Carl T Grimm, LCSW

• Radiation Oncology Physician in Ridgewood, NJ
• Providers in Ridgewood, NJ by specialty
• Radiation Oncology Physician in New Jersey

• 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.