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Dr. Mark S. True, M.D.

Orthopedic Surgery (Orthopaedic Surgery Physician)

  • Medicare participating

At a glance

Years since graduation
38
In the NPI registry since
2005
Medicare patients seen, 2024
371

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1988Medical school: University of Cincinnati College of Medicine
  • 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Orthopaedic Surgery Physician primary
    OH license 35064766
  • Specialist
    OH license 35064766

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Orthopedic Surgery per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
371
Services billed
7,276
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg3,78039
Established patient office or other outpatient visit, 20-29 minutes460277
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg17462
X-ray of hip, 2-3 views160126
Aspiration and/or injection of fluid from large joint14399
New patient office or other outpatient visit, 30-44 minutes125125
X-ray of knee, 4 or more views110104
X-ray of knee, 3 views10080
Replacement of thigh bone and hip joint with prosthesis6260
Replacement of knee joint, both sides of knee3938

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 2 companies reported 2 payments worth $186 in total to this clinician.

By company
Stryker Corporation$172
DePuy Synthes Sales Inc.$13.61
By type
Food and Beverage$186

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Ohio →

Other Orthopedic Surgery clinicians in Cincinnati

Sources

NPI registry (CMS NPPES, November 2026; record last updated February 3, 2021), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1902881261. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.