Dr. Gregory Retzinger, MD
What this data tells you about Dr. Retzinger
Dr. Gregory Retzinger is a clinical pathology/laboratory medicine physician in Cincinnati, OH, with 19 years of NPI registration. Based on federal Medicare data, Dr. Retzinger performed 5,171 Medicare services across 1,246 unique beneficiaries.
Between the years covered by Open Payments, Dr. Retzinger received a total of $55 from 2 pharmaceutical and/or device companies across 2 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in clinical pathology/laboratory medicine physician. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Retzinger is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
2,238 | $8 | $56 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,779 | $10 | $76 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
330 | $7 | $34 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
299 | $8 | $20 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
184 | $6 | $44 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
91 | $4 | $23 |
| Phosphate level test A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong. |
75 | $5 | $34 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
69 | $2 | $16 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
62 | $8 | $61 |
| Automated red blood cell count An automated laboratory test that measures the number of red blood cells in a blood sample. |
44 | $4 | $29 |
Industry Payment Transparency
Open Payments through 2022 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2022)
All-time payments by company (2019-2022) ›
Associated products mentioned in payments ›
The majority of payments (73%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in clinical pathology/laboratory medicine physician and does not inherently indicate bias, but patients may wish to be aware.
Geographic Context
0.9 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2022 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Retzinger is a mixed practice specialist, with above-average Medicare volume (top 9% in OH), with speaking/promotional industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Retzinger experienced with complete blood count (cbc) with differential?
Does Dr. Retzinger receive payments from pharmaceutical companies?
How do Dr. Retzinger's costs compare to other clinical pathology/laboratory medicine physicians in Cincinnati?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology