Matthew William McMaster, DO

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

24 Hospital Ave
Danbury, CT 06810-6099

Phone

(203) 739-7000

NPI assigned

Apr 13, 2021

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Networks

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

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.

• Westchester Medical Center Advanced Physician Services, PC

  • Surgery Physician
  • Valhalla, NY
  • NPI 1912131392
  Medicare reassignment NPD
• Westchester Medical Center Advanced Physician Services PC

  • Anesthesiology Physician
  • Valhalla, NY
  • NPI 1740687458
  NPD
• Westchester County Health Care Corporation

  • General Acute Care Hospital
  • Valhalla, NY
  • NPI 1932280666
  NPD (past)

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

{
    "created_epoch": "1618272000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1184204075",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24 HOSPITAL AVE",
            "city": "DANBURY",
            "state": "CT",
            "postal_code": "068106099",
            "telephone_number": "908-616-0541"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24 HOSPITAL AVE",
            "city": "DANBURY",
            "state": "CT",
            "postal_code": "068106099",
            "telephone_number": "203-739-7000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Woods Rd",
            "address_purpose": "LOCATION",
            "city": "Valhalla",
            "state": "NY",
            "postal_code": "105951530",
            "country_code": "US",
            "telephone_number": "914-493-7000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCMASTER",
        "first_name": "MATTHEW",
        "middle_name": "WILLIAM",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-13",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Autumn Nicole McLamore, DC
• Stacie McLaughlin, PT
• Catherine McLean
• Christina Alexis McMahon, PA-C
• James T McMahon, PA-C
• Jacqueline M. McNamee, LMFT
• Leslie Patricia McQuilling, M.S.
• Michelle Kuznicki McRuiz, P.A.
• Melissa McShane, LCSW
• MDK Therapeutic Consulting Services LLC

• Student in an Organized Health Care Education/Training Program in Danbury, CT
• Providers in Danbury, CT by specialty
• Student in an Organized Health Care Education/Training Program in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 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.