John Mascari, MD

Primary specialty

Neonatal-Perinatal Medicine PhysicianTaxonomy code 2080N0001X

License

337258 Issued in NY

Practice address

1283 York Ave
New York, NY 10065

Phone

(646) 697-6428

NPI assigned

Apr 11, 2018

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 NY

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

Specialty

Pediatric Medicine

Education

Geisel School of Medicine at Dartmouth, 2018

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Weill Medical College of Cornell

  • Internal Medicine Physician
  • New York, NY
  • NPI 1124170212
  Medicare reassignment

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

{
    "created_epoch": "1523404800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772409600000",
    "number": "1154828507",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1283 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10065"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1283 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10065",
            "telephone_number": "646-697-6428"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASCARI",
        "first_name": "JOHN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-11",
        "last_updated": "2026-03-02",
        "certification_date": "2026-03-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "NY",
            "license": "337258",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Iris Abbe Masarsky, M.A. CCC-SLP
• Eric Masbou
• Eric Mascara, LCSW
• John Mascarenhas, MD
• Kristen Mascarenhas
• Norma Santa Iglesia Mascarinas
• Veronica Mascasullo, M.D.
• Rachel J. Masch, M.D.
• Rachel Emily Maschler Davydov
• Alicia Mascho, PH.D.

• Neonatal-Perinatal Medicine Physician in New York, NY
• Providers in New York, NY by specialty
• Neonatal-Perinatal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 2, 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.