Kristin M. Williamson, RPA-C
NPI 1528023694ActiveIndividual· Physician Assistant, Surgical· Williamsville, NY
Physician Assistant, Surgical (RPA-C) with Brain and Spine Medical Services PLLC, practicing in Williamsville, New York. Their prescriptions cost Medicare Part D more than their services did: $271,428 for 2,847 claims, against $10,601 paid for services in 2024. Vertex Pharmaceuticals Incorporated was the largest of 7 companies reporting payments in 2025, $260.55 in all, mostly food and beverage. Lists Kenmore Mercy Hospital as a hospital affiliation.
Overview
| NPI | 1528023694 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RPA-C |
| Sole proprietor | No |
| NPI issued | Apr 20, 2006 |
| Last updated in NPPES | Jun 5, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | 009406-1 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 119 |
|---|---|
| Services billed | 232 across 4 procedure codes |
| Paid by Medicare | $10,601 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,847 · 2,955 30-day fills |
|---|---|
| Patients | 605 |
| Total drug cost | $271,428 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Brain and Spine Medical Services PLLCWilliamsville, NY · 56 clinicians
Hospital affiliation
- Kenmore Mercy HospitalKenmore, NY
Industry payments (Open Payments)
- 2025$260.55 · 58 payments from 7 companies
- 2024$47.79 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $122.39 | 1 |
| Collegium Pharmaceutical, Inc. | $37.01 | 2 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $30.92 | 2 |
| Indivior Inc. | $23.74 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $23.18 | 1 |
What the 2025 payments were for
- Food and Beverage$260.55 · 58 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 surgical physician assistants in Williamsville · All surgical physician assistants in New York