Tessa Marie Bigelow, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

019739 Issued in NY

Practice address

111 N Maplemere Rd Ste 100
Williamsville, NY 14221-3182

Phone

(716) 204-3200

Fax

(716) 204-4337

NPI assigned

May 24, 2016

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University at Buffalo Neurosurgery IncGroup PAC ID 0143124719, 70 clinicians

University Orthopaedic Services Inc.Group PAC ID 7810983004, 115 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Hospital of Buffalo Hospital, Buffalo, NY, CCN 330279

Merit-based Incentive Payment System (MIPS)

Final score

95.78 of 100Reported as group

Quality

87.1

Promoting interoperability

95

Improvement activities

40

Cost

86.98

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tbigelow@ubns.medentdirect.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.

• University at Buffalo Neurosurgery, Inc.

  • Neurological Surgery Physician
  • Williamsville, NY
  • NPI 1306896220
  Medicare reassignment Care Compare group NPD
• University Orthopaedic Services, Inc

  • Orthopaedic Surgery Physician
  • Cheektowaga, NY
  • NPI 1578599866
  Medicare reassignment Care Compare group NPD
• Buffalo Emergency Associates LLP

  • Emergency Medicine Physician
  • Williamsville, NY
  • NPI 1508816521
  Medicare reassignment
• Wellnow Urgent Care, PC

  • Urgent Care Clinic/Center
  • Liverpool, NY
  • NPI 1669825162
  Medicare reassignment
• University at Buffalo Neurosurgery, Inc.

  • Specialist
  • Niagara Falls, NY
  • NPI 1295287662
  NPD
• University Orthopaedic Services Inc.

  • Orthopaedic Surgery Physician
  • Amherst, NY
  • NPI 1528209962
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Mercy Hospital of Buffalo

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1164464921
  Care Compare affiliation

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

{
    "created_epoch": "1464048000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770336000000",
    "number": "1710334388",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4225 GENESEE ST STE 400",
            "city": "CHEEKTOWAGA",
            "state": "NY",
            "postal_code": "142251994",
            "telephone_number": "716-204-3200",
            "fax_number": "716-204-4337"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "111 N MAPLEMERE RD STE 100",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "142213182",
            "telephone_number": "716-204-3200",
            "fax_number": "716-204-4337"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BIGELOW",
        "first_name": "TESSA",
        "middle_name": "MARIE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-05-24",
        "last_updated": "2026-02-06",
        "certification_date": "2026-02-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NY",
            "license": "019739",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Akash Kumar Bhatnagar, MD
• Ranjan Bhayana, MD
• Jolene Bieber
• Paul Bielec, CRNA
• Katy Bigelow, FNP-BC
• Carol Lynn Bigos
• Amanda Bijl, LPN
• Corrin Billi, LPN
• Andrea M Billings, MS ED CCC/SLP
• Trisha L Billman

• Physician Assistant in Williamsville, NY
• Providers in Williamsville, NY by specialty
• Physician Assistant in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 6, 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.