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

Dr. Stephen A Mendelson

Individual provider Orthopaedic Surgery of the Spine Physician · NPI 1841265501

Dr. Stephen A Mendelson practises Orthopedic Surgery in Pittsburgh, Pennsylvania. Graduated from University of Chicago, Pritzker School of Medicine in 1989, 37 years ago. Practices with University of Pittsburgh Physicians, a 4,127-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
37
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
PA
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

4401 Penn Ave
Pittsburgh, PA 15224-1334
Phone: (412) 692-5530
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence MD059522L (PA)
Orthopaedic Surgery of the Spine Physician Taxonomy 207XS0117X · Licence MD059522L (PA)

Record details

NPI number1841265501
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 17, 2006
Last updated in NPPESFebruary 24, 2026
Certification dateFebruary 24, 2026

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice University Of Pittsburgh Physicians — 4127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 $123 1 payment · a meal or drink at a meeting or visit, not a fee

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.

Colleagues at University of Pittsburgh Physicians

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4127 clinicians in the practice; 12 are shown here.

Other providers in Pittsburgh