Gregory A. Zemenick, MD

Medicare activity in 2024

Official CMS public-use data for Gregory A. Zemenick, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)1,140 services
2. Injection, ketorolac tromethamine, per 15 mg (J1885)695 services
3. X-ray of knee, 1-2 views (73560)407 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)396 services
5. X-ray of lower and sacral spine, 2-3 views (72100)244 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol75%
• High blood pressure74%
• Arthritis72%
• Ischemic heart disease33%
• Diabetes27%
• Anxiety26%

Hospitals where Gregory A. Zemenick works

Medicare's Facility Affiliation Data lists Gregory A. Zemenick at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Beaumont Hospital - Grosse PointeGrosse Pointe, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230089
• Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130
• Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230269

Practice locations

Addresses where Gregory A. Zemenick is enrolled with Medicare (CMS data updated October 2, 2026).

• 1350 Kirts Blvd, Suite 160Troy, MI 48084 (248) 244‑9426

Group practices

Medicare enrollment lists Gregory A. Zemenick as a member of this group (CMS data updated October 2, 2026).

• Michigan Orthopaedic Surgeons PLLC127 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in Michigan →

Other orthopedic surgeons in Troy

Clinicians with the same Medicare primary specialty in Troy, MI — not a recommendation.

• Kevin Weisz, MD
• Sean A. Matuszak, MD
• Shariff K. Bishai, DO
• Ryan M. Scheuerman, DO
• Michael A. Flierl, MD
• Craig W. Roodbeen, MD
• Gregory P. Nowinski, MD
• Charles C. Stroud, MD

All orthopedic surgeons in Troy →

Other clinicians in Michigan Orthopaedic Surgeons PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Thomas Chung
• Roger B. Fenton, DO
• Julie Berris, OT
• Bianca Kassab
• Rachel Ziegler, PA
• Chirstopher G. Minnock, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians