Nicholas C. Gemma, DO
Surgery Physician · Warren, OH
Nicholas C. Gemma, DO is a surgery physician with a practice address in Warren, Ohio, and NPI 1033748579, issued on Apr 6, 2020. Check the license (Ohio 34.018016, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Nicholas C. Gemma
- Credential
- DO
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 34.018016 OH
Self-reported in NPPES; status is on the state search - Practice location
- 8740 E Market St Ste 2, Warren, OH 44484
- Phone
- (330) 918-1501
- Enumerated
- Apr 6, 2020
- Record last updated
- May 28, 2026
- Fax
- (234) 287-6380
- Medicaid ID
- 0484025 OH
- Medicare enrollment
- Enrolled (PECOS I20250723004398); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 2020
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,249 in Ohio → Look up another NPI →
Also registered at 8740 E Market St Ste 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Calderon, DO, PHARMDGastroenterology Physician1821310004
- Cieara Hayes Underwood, LMTMassage Therapist1699556316
- Joseph Martin, M.D.Surgery Physician1760799431
- Axel Rodriguez Rosa, MDPain Medicine Physician1093210817
Verify Nicholas C. Gemma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34.018016Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average surgery physician in 2024
99 Medicare Part D claims for 57 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 54 claims were for opioids.
Most prescribed
- Ondansetron Hcl33 claims
- Oxycodone Hcl26 claims
- Oxycodone-Acetaminophen23 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.
Bills Medicare through one group practice
- Triad Health Services LLCWarren, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas C. Gemma among 1,249 surgery physician records in Ohio
Nicholas C. Gemma, DO is one of 1,249 surgery physician records with a practice address in Ohio. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2006 among the 739 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Ohio
There are 1,249 surgery physician records in Ohio.
All 1,249 in Ohio → Every provider in Warren → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Benjamin Biteman, M.D.Warren, OH 444841336456391
- Michael DeverWarren, OH 444841891282935
- Nicholas Gastaldo, DOWarren, OH 444841235626821
- Ronald Khoury, MDWarren, OH 444841952382418
- Joseph Martin, M.D.Warren, OH 444841760799431
- Consandre Romain, M.D.Warren, OH 444841083970370
- Janet Shiley, MDWarren, OH 444841720120280
- Robert Woodruff, MDWarren, OH 444841659351617
Common questions
What is Nicholas C. Gemma, DO's NPI number?
Nicholas C. Gemma, DO's National Provider Identifier (NPI) is 1033748579, issued on Apr 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas C. Gemma, DO located?
The NPPES record lists a practice address at 8740 E Market St Ste 2, Warren, OH, 44484. Phone: (330) 918-1501. Providers update this record themselves, so call before visiting.
How can I verify Nicholas C. Gemma, DO's license?
NPPES lists Ohio license number 34.018016, 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 Nicholas C. Gemma, DO prescribe under Medicare Part D?
In 2024, Nicholas C. Gemma, DO had 99 Medicare Part D claims for 57 beneficiaries; the average among surgery physician prescribers was 147. 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.