Peter C. Lenhart, M.D.
Internal Medicine Physician · Ada, MI
Peter C. Lenhart, M.D. is an internal medicine physician with a practice address in Ada, Michigan, and NPI 1831170646, issued on Nov 9, 2005. Check the license (Michigan 4301116956, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Peter C. Lenhart
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301116956 MI
Self-reported in NPPES; status is on the state search - Practice location
- 6741 E Fulton St, Ada, MI 49301
- Phone
- (616) 685-2500
- Enumerated
- Nov 9, 2005
- Record last updated
- Sep 6, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (616) 685-2511
- Medicare enrollment
- Enrolled (PECOS I20190509002138); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 6741 E Fulton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Cordes, DOInternal Medicine Physician1770961096
Verify Peter C. Lenhart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301116956Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% more Medicare Part D claims than the average internal medicine physician in 2024
6,084 Medicare Part D claims for 549 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 37 claims were for opioids.
Most prescribed
- Atorvastatin Calcium678 claims
- Amlodipine Besylate316 claims
- Lisinopril306 claims
- Levothyroxine Sodium280 claims
- Omeprazole274 claims
- Losartan Potassium220 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 2 group practices
- Advantage Health/saint Mary's Medical GroupCaledonia, MI
- Mercy Medical Partners Northern Region LLCDefiance, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter C. Lenhart among 5,735 internal medicine physician records in Michigan
Peter C. Lenhart, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1994 · median 2006 among the 3,564 with a school on file
- Record last updated2019 · 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).
5 internal medicine physician records list a practice address in Ada
They are 5 of the 193 NPPES records with a practice address in Ada, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Ada → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Emily Cordes, DOAda, MI 493011770961096
- Stephen Macedo, MDAda, MI 493011841294477
- Robert Mackinder, MDAda, MI 493011124022660
- John Mogor, M.D.Ada, MI 493011518932839
- Daniel Bow, D.O.Baldwin, MI 493041528270204
- Rashmi Juneja, M.D.Big Rapids, MI 493071770560203
- Kory Kropman, M.D.Big Rapids, MI 493071811568801
- Jessica Reed, MDBig Rapids, MI 493071336646983
Common questions
What is Peter C. Lenhart, M.D.'s NPI number?
Peter C. Lenhart, M.D.'s National Provider Identifier (NPI) is 1831170646, issued on Nov 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Peter C. Lenhart, M.D. located?
The NPPES record lists a practice address at 6741 E Fulton St, Ada, MI, 49301. Phone: (616) 685-2500. Providers update this record themselves, so call before visiting.
How can I verify Peter C. Lenhart, M.D.'s license?
NPPES lists Michigan license number 4301116956, 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 C. Lenhart, M.D. prescribe under Medicare Part D?
In 2024, Peter C. Lenhart, M.D. had 6,084 Medicare Part D claims for 549 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.