Brandon Sullivan

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

577 Western Ave
Westfield, MA 01085-2580

Phone

(413) 572-8149

NPI assigned

Sep 23, 2025

Sex

Unspecified or another gender identity

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 MA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

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.

• Mercy Inpatient Medical Associates Inc.

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1407845282
  Medicare reassignment NPD

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

{
    "created_epoch": "1758585600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771200000000",
    "number": "1881566321",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "577 WESTERN AVE",
            "city": "WESTFIELD",
            "state": "MA",
            "postal_code": "010852580"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "577 WESTERN AVE",
            "city": "WESTFIELD",
            "state": "MA",
            "postal_code": "010852580",
            "telephone_number": "413-572-8149"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SULLIVAN",
        "first_name": "BRANDON",
        "sole_proprietor": "NO",
        "sex": "X",
        "enumeration_date": "2025-09-23",
        "last_updated": "2026-02-16",
        "certification_date": "2026-02-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mariah Strattner
• Stephen Corridon Strebel, O.D.
• Kelsey Strong
• Stanley D. Strzempko, MD
• Sullivan & Cohen, P.C.
• Charles Sullivan
• Leanne Elizabeth Sullivan
• Shawna Sullivan, COTA/L
• Shayna Sullivan
• Brian Paul Sutton, M.D.

• Physician Assistant in Westfield, MA
• Providers in Westfield, MA by specialty
• Physician Assistant in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 16, 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.