Gregory Retzinger, MD
Clinical Pathology/Laboratory Medicine Physician · Cincinnati, OH
Gregory Retzinger, MD is a clinical pathology/laboratory medicine physician with a practice address in Cincinnati, Ohio, and NPI 1053334755, issued on Jul 25, 2006. Check the license (Ohio 35-06-4628-R, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Gregory Retzinger
- Credential
- MD
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- 35-06-4628-R OH
Self-reported in NPPES; status is on the state search - Practice location
- 231 Albert Sabin Way, Cincinnati, OH 45267
- Phone
- (513) 558-4500
- Enumerated
- Jul 25, 2006
- Record last updated
- Jan 27, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (513) 558-2289
- Medicaid IDs
- 0919340 OH
200000700A IN
64937923 KY - Medicare enrollment
- Enrolled (PECOS I20110729000300); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 34 in Ohio → Look up another NPI →
Also registered at 231 Albert Sabin Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Valerie Allen, M.D.Obstetrics & Gynecology Physician1881985281
- Warren BackStudent in an Organized Health Care Education/Training Program1023819489
- Amanda Bainbridge, PAPhysician Assistant1700170495
- Anastasia Balducci, PHARM.D.Pharmacist1699764654
- William Barham, MDStudent in an Organized Health Care Education/Training Program1669274494
- Khurram Bari, M.D.Transplant Hepatology Physician1689851677
Verify Gregory Retzinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-06-4628-RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationOrland Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Retzinger among 34 clinical pathology/laboratory medicine physician records in Ohio
Gregory Retzinger, MD is one of 34 clinical pathology/laboratory medicine physician records with a practice address in Ohio. 47% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 41% newer
- In a Medicare fileYes · 47% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated1983 · median 2000 among the 15 with a school on file
- Record last updated2010 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in Ohio
There are 34 clinical pathology/laboratory medicine physician records in Ohio.
All 34 in Ohio → Every provider in Cincinnati → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- John Henley, M.D.Cincinnati, OH 452671760449466
- Kirby Reinhart, M.D.Cincinnati, OH 452201609889872
- Carl Parrott, M.DCincinnati, OH 452191962491886
- Suseelamm Kandula, M.D.Troy, OH 453731407928542
- Maribel Mangilog, M.D.Wright Patterson Afb, OH 454331285729137
- Gary Meade, MDBellevue, OH 448111710933593
- Shail Jain, M.D.Medina, OH 442561770624140
- Steven Billings, M.D.Cleveland, OH 441951447217658
Common questions
What is Gregory Retzinger, MD's NPI number?
Gregory Retzinger, MD's National Provider Identifier (NPI) is 1053334755, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Retzinger, MD located?
The NPPES record lists a practice address at 231 Albert Sabin Way, Cincinnati, OH, 45267. Phone: (513) 558-4500. Providers update this record themselves, so call before visiting.
How can I verify Gregory Retzinger, MD's license?
NPPES lists Ohio license number 35-06-4628-R, 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.
What is Gregory Retzinger, MD's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.