Gregory A. Zemenick, MD
Orthopaedic Surgery Physician · Troy, MI
Gregory A. Zemenick, MD is an orthopaedic surgery physician with a practice address in Troy, Michigan, and NPI 1396735510, issued on Oct 27, 2005. Check the license (Michigan 4301030702, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gregory A. Zemenick
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 4301030702 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1350 Kirts Blvd Ste 160, Troy, MI 48084
- Phone
- (248) 244-9426
- Enumerated
- Oct 27, 2005
- Record last updated
- Apr 24, 2026
- Medicaid ID
- 1093120 MI
- Medicare enrollment
- Enrolled (PECOS I20100719000850); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1971
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 962 in Michigan → Look up another NPI →
Also registered at 1350 Kirts Blvd Ste 160
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Alfieri, P.A.Physician Assistant1558706077
- Kyle Allen, PAPhysician Assistant1669751905
- Robert Belke, PASurgical Physician Assistant1932533460
- Jamie Brown, PAPhysician Assistant1609324060
- Donald Knapke, MDOrthopaedic Surgery Physician1366432569
- Joel Kutz, PA-CSurgical Physician Assistant1528149788
Verify Gregory A. Zemenick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301030702Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
73 Medicare Part D claims for 28 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin23 claims
- Ibuprofen12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $250.97
14 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Michigan Orthopaedic Surgeons PLLCTroy, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory A. Zemenick among 962 orthopaedic surgery physician records in Michigan
Gregory A. Zemenick, MD is one of 962 orthopaedic surgery physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1971 · median 2006 among the 560 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Michigan
There are 962 orthopaedic surgery physician records in Michigan.
All 962 in Michigan → Every provider in Troy → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Nicholas Dutcheshen, MDTroy, MI 480841568420305
- Zachary Endress, MDTroy, MI 480841528058740
- Michael Hubers, MDTroy, MI 480841942290168
- Donald Knapke, MDTroy, MI 480841366432569
- Sean Matuszak, MDTroy, MI 480841922214311
- Christopher Minnock, M.D.Troy, MI 480841689962342
- Gregory Nowinski, MDTroy, MI 480841205826427
- Craig Roodbeen, MDTroy, MI 480841780674903
Common questions
What is Gregory A. Zemenick, MD's NPI number?
Gregory A. Zemenick, MD's National Provider Identifier (NPI) is 1396735510, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory A. Zemenick, MD located?
The NPPES record lists a practice address at 1350 Kirts Blvd Ste 160, Troy, MI, 48084. Phone: (248) 244-9426. Providers update this record themselves, so call before visiting.
How can I verify Gregory A. Zemenick, MD's license?
NPPES lists Michigan license number 4301030702, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory A. Zemenick, MD prescribe under Medicare Part D?
In 2024, Gregory A. Zemenick, MD had 73 Medicare Part D claims for 28 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.