George Mastromihalis, DDS

Primary specialty

EndodonticsTaxonomy code 1223E0200X

License

050032 Issued in NY

Practice address

225 Broadway
New York, NY 10007-3001

Phone

(212) 732-7400

Fax

(212) 732-0267

NPI assigned

Mar 25, 2006

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 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Opted out of Medicare

Yes, effective Dec 28, 2015 through Dec 28, 2027

Medicare enrollment (NPD)

Not enrolled

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 and National Provider Directory roles.

• Eleni Vinieris D.M.D., P.C.

  • Periodontics
  • New City, NY
  • NPI 1457408148
  NPD (past)
• Maria Vinieris D.D.S., P.C.

  • Endodontics
  • New City, NY
  • NPI 1316097868
  NPD (past)

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

{
    "created_epoch": "1143244800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1992765689",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "225 BROADWAY",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100073001",
            "telephone_number": "212-732-7400",
            "fax_number": "212-732-0267"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "225 BROADWAY",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100073001",
            "telephone_number": "212-732-7400",
            "fax_number": "212-732-0267"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASTROMIHALIS",
        "first_name": "GEORGE",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-25",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223E0200X",
            "taxonomy_group": "",
            "desc": "Dentist, Endodontics",
            "state": "NY",
            "license": "050032",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02672755",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Carla Mastroianni
• Lucas Albert Mastroianni
• Michael Andrew Mastroianni, MD
• Danielle Mastroieni, LMSW
• Breanne Kristen Mastromarino, NP
• Ronald Paul Mastronardi
• Maria Francesca Mastropaolo, MD
• Angelo Joseph Mastropasqua, M.D.
• Biagio Michele Mastropieri, PH.D.
• Jocelyn Marie Mastropolo, DPT

• Endodontics in New York, NY
• Providers in New York, NY by specialty
• Endodontics 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.