Gregory C. Zenni, M.D.
Vascular Surgery Physician · Cincinnati, OH
Gregory C. Zenni, M.D. is a vascular surgery physician with a practice address in Cincinnati, Ohio, and NPI 1285664789, issued on Jul 3, 2006. Check the license (Ohio 35065279Z, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Gregory C. Zenni
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License numbers
- 35065279Z OH
29635 KY
Self-reported in NPPES; status is on the state search - Practice location
- 4750 E Galbraith RD Ste 215, Cincinnati, OH 45236
- Phone
- (513) 421-3494
- Enumerated
- Jul 3, 2006
- Record last updated
- Dec 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (513) 345-4886
- Medicaid IDs
- 0928830 OH
200001400 IN
64933153 KY - Medicare enrollment
- Enrolled (PECOS I20130423000069); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 241 in Ohio → Look up another NPI →
Also registered at 4750 E Galbraith RD Ste 215
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Boggs, CNP-AGAC-BCGerontology Nurse Practitioner1023727047
- Lauren Cambridge, CNPAcute Care Nurse Practitioner1013542554
- Costanzo Diperna, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1063436731
- Samantha Gerbus, PAPhysician Assistant1477067080
- Manisha Patel, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1629002076
- Jason Sperling, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1285603597
Verify Gregory C. Zenni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35065279ZCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average vascular surgery physician in 2024
173 Medicare Part D claims for 72 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 43 claims were for opioids.
Most prescribed
- Cilostazol46 claims
- Hydrocodone-Acetaminophen27 claims
- Xarelto14 claims
- Clopidogrel13 claims
- Oxycodone Hcl13 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: $50.42
3 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 4,059 providers of this specialty with any payment received $6,178.00 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
- Mercy Health Physicians Cincinnati Specialty Care LLCFairfield, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory C. Zenni among 241 vascular surgery physician records in Ohio
Gregory C. Zenni, M.D. is one of 241 vascular surgery physician records with a practice address in Ohio. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 50% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1986 · median 2005 among the 167 with a school on file
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in Ohio
There are 241 vascular surgery physician records in Ohio.
All 241 in Ohio → Every provider in Cincinnati → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Mark Broering, MDMontgomery, OH 452421467714824
- Robert Collins, M.D.Cincinnati, OH 452421083691521
- Brian Kuhn, MDCincinnati, OH 452421841594496
- Aaron Kulwicki, MDCincinnati, OH 452421841238755
- Patrick Muck, MDCincinnati, OH 452421790762136
- Matthew Recht, MDCincinnati, OH 452421033114616
- Adam ReichardMontgomery, OH 452421447604640
- Sasidhar Kilaru, M.D.Cincinnati, OH 452481235104985
Common questions
What is Gregory C. Zenni, M.D.'s NPI number?
Gregory C. Zenni, M.D.'s National Provider Identifier (NPI) is 1285664789, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory C. Zenni, M.D. located?
The NPPES record lists a practice address at 4750 E Galbraith RD Ste 215, Cincinnati, OH, 45236. Phone: (513) 421-3494. Providers update this record themselves, so call before visiting.
How can I verify Gregory C. Zenni, M.D.'s license?
NPPES lists Ohio license number 35065279Z, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory C. Zenni, M.D. prescribe under Medicare Part D?
In 2024, Gregory C. Zenni, M.D. had 173 Medicare Part D claims for 72 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.