Gary Mazer, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

236270 Issued in NY

Practice address

336 E 86TH St
New York, NY 10028-4615

Phone

(212) 772-3627

NPI assigned

Feb 14, 2008

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, NJ2 enrollments

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 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: gary.mazer.1@21260.direct.athenahealth.com
• Direct secure messaging: gary.mazer.1@2983.direct.athenahealth.com

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.

• City Medical of Upper East Side, PLLC

  dba CityMD Urgent Care

  • Urgent Care Clinic/Center
  • New York, NY
  • NPI 1801277629
  Medicare reassignment NPD
• Huntington Hospital Association

  dba Huntington Hospital Faculty Practice

  • Physician Assistant
  • Huntington, NY
  • NPI 1386619385
  Medicare reassignment NPD
• Westchester Medical Group, P.C.

  dba WESTMED Medical Group

  • Critical Care Medicine (Internal Medicine) Physician
  • Rye Brook, NY
  • NPI 1881653822
  Medicare reassignment NPD
• Summit Medical Group PA

  • Multi-Specialty Clinic/Center
  • Berkeley Heights, NJ
  • NPI 1942254347
  Medicare reassignment NPD
• City Medical of Upper East Side, PLLC

  • Urgent Care Clinic/Center
  • New York, NY
  • NPI 1740913763
  NPD
• City Medical of Upper East Side, PLLC

  dba CityMD

  • Urgent Care Clinic/Center
  • Yonkers, NY
  • NPI 1871919811
  NPD
• Huntington Hospital Association

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Huntington, NY
  • NPI 1922283480
  NPD
• Huntington Hospital Emergency Department

  • Family Medicine Physician
  • Huntington, NY
  • NPI 1679548671

  Emergency Medicine

  NPD
• Summit Medical Group PA

  • Durable Medical Equipment & Medical Supplies
  • Hackensack, NJ
  • NPI 1043930555
  NPD
• The Westchester Medical Group PC

  dba Westmed Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Greenwich, CT
  • NPI 1790560878
  NPD

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

{
    "created_epoch": "1202947200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1740096000000",
    "number": "1538337381",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1345 AVENUE OF THE AMERICAS FL 8",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "101050018",
            "telephone_number": "908-588-3635",
            "fax_number": "908-934-9350"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "336 E 86TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100284615",
            "telephone_number": "212-772-3627"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "210 Westchester Ave",
            "address_purpose": "LOCATION",
            "city": "White Plains",
            "state": "NY",
            "postal_code": "106042901",
            "country_code": "US",
            "telephone_number": "844-824-8963",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAZER",
        "first_name": "GARY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-02-14",
        "last_updated": "2025-02-21",
        "certification_date": "2025-02-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "236270",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Laurie K. Maysick, M.D.
• Sarah Jo Mayson, PHD
• Wayne Maysonet
• Jayenth Mayur, MD
• Mazen O Kamen, M.D. P.C.
• Rebecca Mazer, LMT
• Alexander Mazerov, MD
• Mary Mazgaj
• Robert Leonard Mazgaj, M.D.
• Mohammed Mazharuddin, M.D.

• Emergency Medicine Physician in New York, NY
• Providers in New York, NY by specialty
• Emergency Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 21, 2025; 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.