Peter John Kelterborn, D.O.
Internal Medicine Physician · Ann Arbor, MI
Peter John Kelterborn, D.O. is an internal medicine physician with a practice address in Ann Arbor, Michigan, and NPI 1972948420, issued on May 9, 2013. Check the license (Michigan 5101026397, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Peter John Kelterborn
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 5101026397 MI
O-0949 ID
Self-reported in NPPES; status is on the state search - Practice location
- 375 Briarwood Cir, Ann Arbor, MI 48108
- Phone
- (734) 998-2020
- Enumerated
- May 9, 2013
- Record last updated
- Feb 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20211230000597); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 375 Briarwood Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alexandra CastroStudent in an Organized Health Care Education/Training Program1639006950
- Nicole CremerStudent in an Organized Health Care Education/Training Program1134789266
- Elizabeth Drake, MDInternal Medicine Physician1881783751
- Kayla GallantStudent in an Organized Health Care Education/Training Program1699602979
- Yousif GariaqozaStudent in an Organized Health Care Education/Training Program1891535845
Verify Peter John Kelterborn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101026397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,327 Medicare Part D claims for 213 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium142 claims
- Lisinopril75 claims
- Levothyroxine Sodium74 claims
- Losartan Potassium53 claims
- Metformin Hcl Er42 claims
- Simvastatin35 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
- Regents OF The University OF MichiganAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter John Kelterborn among 5,735 internal medicine physician records in Michigan
Peter John Kelterborn, D.O. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 61% of them.
- NPI issued2013 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · median 2006 among the 3,564 with a school on file
- Record last updated2023 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
479 internal medicine physician records list a practice address in Ann Arbor
They are 479 of the 15,616 NPPES records with a practice address in Ann Arbor, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Ann Arbor → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Elizabeth Drake, MDAnn Arbor, MI 481081881783751
- Charisse Gencyuz, MDAnn Arbor, MI 481081174612303
- Kimberly Hamilton, MDAnn Arbor, MI 481081437189883
- Kurt Kamper, MDAnn Arbor, MI 481081154370542
- Susan Kamper, MDAnn Arbor, MI 481081760431167
Common questions
What is Peter John Kelterborn, D.O.'s NPI number?
Peter John Kelterborn, D.O.'s National Provider Identifier (NPI) is 1972948420, issued on May 9, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Peter John Kelterborn, D.O. located?
The NPPES record lists a practice address at 375 Briarwood Cir, Ann Arbor, MI, 48108. Phone: (734) 998-2020. Providers update this record themselves, so call before visiting.
How can I verify Peter John Kelterborn, D.O.'s license?
NPPES lists Michigan license number 5101026397, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter John Kelterborn, D.O. prescribe under Medicare Part D?
In 2024, Peter John Kelterborn, D.O. had 1,327 Medicare Part D claims for 213 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.