Karen A. McMahon, PA

Karen McMahon practices at Kenmore Mercy Hospital in Kenmore, New York, part of Catholic Health System.

Karen McMahon's NPI, 1932151776, was assigned on May 17, 2006. Karen McMahon holds New York license 007603-1.

Karen McMahon's primary practice is Kenmore Mercy Hospital, at 2950 Elmwood Avenue, Kenmore, NY 14217 in Erie County. The practice phone is (716) 447-6100.

Karen McMahon's primary practice is Kenmore Mercy Hospital in Kenmore, New York, part of Catholic Health System. The medical group on file is Mercy Hospital of Buffalo. Dmand AI also links Karen McMahon to 3 more medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Karen McMahon practices. Vendor and product names are available with a free account.

Surgical is Karen McMahon's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Karen McMahon is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Karen McMahon is licensed in New York.

CMS counts 15 Medicare patients who saw Karen McMahon in 2024. The largest group is under 65, with 0 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.01, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Karen McMahon's median patient age at 68, with 59% women.

In 2024, Karen McMahon wrote 260 Medicare Part D claims for 121 patients. 98% of them were for generic drugs. CMS names the drug for 188 of them, across 5 drugs with 11 or more claims each, at $666 in total drug cost.

Karen McMahon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 1 general payment to Karen McMahon from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $22.