Kathryn M. Knisely, PA
NPI 1669484440ActiveIndividual· Physician Assistant, Surgical· Williamsville, NY
Physician Assistant, Surgical (PA) with Excelsior Orthopaedics LLP, practicing in Williamsville, New York. 148 Medicare patients in 2024, $41,198 paid; nearly all of their 624 Part D prescriptions were generic (99%). Merck Sharp & Dohme LLC reported $14.10 in payments in 2025, mostly food and beverage. Lists Kenmore Mercy Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1669484440 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Aug 12, 2006 |
| Last updated in NPPES | Dec 17, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | 010007 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 148 |
|---|---|
| Services billed | 2,878 across 24 procedure codes |
| Paid by Medicare | $41,198 |
Part D prescriptions in 2024
| Prescriptions (claims) | 624 · 654 30-day fills |
|---|---|
| Patients | 273 |
| Total drug cost | $7,569 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Excelsior Orthopaedics LLPAmherst, NY · 144 clinicians
Hospital affiliations
- Kenmore Mercy HospitalKenmore, NY
- Sisters of Charity HospitalBuffalo, NY
Industry payments (Open Payments)
- 2025$14.10 · 1 payment from 1 company
- 2024$38.83 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $14.10 | 1 |
What the 2025 payments were for
- Food and Beverage$14.10 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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