Karen A. McMahon, P.A.
NPI 1932151776ActiveIndividual· Physician Assistant, Surgical· Kenmore, NY
Physician Assistant, Surgical (P.A.) with Kenmore Mercy Hospital, practicing in Kenmore, New York. Their prescriptions cost Medicare Part D more than their services did: $3,616 for 260 claims, against $1,685 paid for services in 2024. Vertex Pharmaceuticals Incorporated reported $22.30 in payments in 2025, mostly food and beverage. Lists Kenmore Mercy Hospital as a hospital affiliation.
Overview
| NPI | 1932151776 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | No |
| NPI issued | May 17, 2006 |
| Last updated in NPPES | Feb 16, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | 007603-1 | 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 | 15 |
|---|---|
| Services billed | 17 across 6 procedure codes |
| Paid by Medicare | $1,685 |
Part D prescriptions in 2024
| Prescriptions (claims) | 260 · 262 30-day fills |
|---|---|
| Patients | 121 |
| Total drug cost | $3,616 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Kenmore Mercy HospitalKenmore, NY · 55 clinicians
Hospital affiliation
- Kenmore Mercy HospitalKenmore, NY
Industry payments (Open Payments)
- 2025$22.30 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $22.30 | 1 |
What the 2025 payments were for
- Food and Beverage$22.30 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Physician Assistant, Surgical providers in Kenmore
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