Peter Nguyen, DO
Internal Medicine Physician · Cincinnati, OH
Peter Nguyen, DO is an internal medicine physician with a practice address in Cincinnati, Ohio, and NPI 1770223273, issued on Mar 31, 2022. Check the license (Ohio 34.018084, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Peter Nguyen
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 34.018084 OH
Self-reported in NPPES; status is on the state search - Practice location
- 5525 Marie Ave, Cincinnati, OH 45248
- Phone
- (513) 981-5463
- Enumerated
- Mar 31, 2022
- Record last updated
- Aug 28, 2025
- Fax
- (513) 598-2242
- Medicare enrollment
- Enrolled (PECOS I20250910001175); accepts Medicare assignment
- Medical or professional school
- University Of North Texas Hsc, College Of Osteopathic Med, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 5525 Marie Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Bogner, FNP-CFamily Nurse Practitioner1639559867
- Brittany Fitzpatrick, DOInternal Medicine Physician1295477842
- Caroline Klopp, PA-CInternal Medicine Physician1780317198
- John Leisgang, M.D.Internal Medicine Physician1407802754
- Mary Ellen McCullough, MDHematology & Oncology Physician1407840812
Verify Peter Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34.018084Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
189 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium27 claims
- Lisinopril23 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: $53.65
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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 LLCCincinnati, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Nguyen among 5,277 internal medicine physician records in Ohio
Peter Nguyen, DO is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 92% of them.
- NPI issued2022 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2022 · median 2006 among the 3,414 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
566 internal medicine physician records list a practice address in Cincinnati
They are 566 of the 31,362 NPPES records with a practice address in Cincinnati, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Cincinnati → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mary Blades, MDCincinnati, OH 452481306842042
- Prasad Chandra, M.D.Cincinnati, OH 452481063468312
- Steven Cooley, MDCincinnati, OH 452481457358665
- Amador Delamerced, MDCincinnati, OH 452481083612410
- Prashanth Kesav, M.D.Cincinnati, OH 452481235185950
- Richard Klopp, M.D.Cincinnati, OH 452481396790432
- John Leisgang, M.D.Cincinnati, OH 452481407802754
- Sharon SaxCincinnati, OH 452481356397608
Common questions
What is Peter Nguyen, DO's NPI number?
Peter Nguyen, DO's National Provider Identifier (NPI) is 1770223273, issued on Mar 31, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Peter Nguyen, DO located?
The NPPES record lists a practice address at 5525 Marie Ave, Cincinnati, OH, 45248. Phone: (513) 981-5463. Providers update this record themselves, so call before visiting.
How can I verify Peter Nguyen, DO's license?
NPPES lists Ohio license number 34.018084, 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 Peter Nguyen, DO prescribe under Medicare Part D?
In 2024, Peter Nguyen, DO had 189 Medicare Part D claims for 24 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.