Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Steven Karnyski

Individual provider Orthopaedic Surgery Physician · NPI 1891158192

Steven Karnyski practises Orthopedic Surgery in Henrietta, New York. Graduated from State University of Ny Upstate Medical University in 2016, 10 years ago. Practices with Rochester General Hospital, a 1,197-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
10
Trained at
State University of Ny Upstate Medical University
Licensed in
NY
In the registry since
2016
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Practice location Address checks out

50 Middle Rd
Henrietta, NY 14467-9312
Phone: (585) 723-7600
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 180 Park Club Ln Ste 225, Williamsville, NY 14221-5260 — (716) 839-5858

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 318834 (NY)

Record details

NPI number1891158192
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 4, 2016
Last updated in NPPESFebruary 20, 2025
Certification dateFebruary 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 2016 (10 years in practice)
Group practice Rochester General Hospital — 1197 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Hip replacement 1–10 times
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times
Upper limb (arm) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients141
Services billed 2,053 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $643 11 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $509 1 payment · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Rochester General Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1197 clinicians in the practice; 12 are shown here.

Other providers in Henrietta