Peter Lenhart, M.D.
Internal Medicine Physician · Ada, MI
Peter 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; the Medicare figures below come from public CMS files.
- Name
- Peter 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
- Entity
- Type 1 · individual
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, DOPediatrics Physician1770961096
Verify Peter Lenhart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine
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
2.2 times the Medicare Part D claims of the average internal medicine physician in 2024
6,084 Medicare Part D claims for 549 beneficiaries, against an average of 2,785 among the 127,794 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.
2 hospital and facility affiliations
- Advantage Health/saint Mary's Medical GroupCaledonia, MI
- Mercy Medical Partners Northern Region LLCDefiance, OH
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
3 internal medicine physician records list a Ada practice address
They are 3 of the 193 NPPES records with a Ada practice address, and 6,589 internal medicine physician records in Michigan.
All 3 in Ada → All 6,589 in Michigan → Every provider in Ada →
Other internal medicine physician records in Michigan
- Keith Aaronson, MDAnn Arbor, MI1144305301
- Tomas Abalo, M.D.Iron Mountain, MI1336199975
- Ali Abbas, M.D.Pontiac, MI1972167526
- Hawazin Abbas, MDAuburn Hills, MI1699020677
- Imran Abbasi, D.O.Warren, MI1427409887
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Joseph Abbo, MDYpsilanti, MI1982136503
Common questions
What is Peter Lenhart, M.D.'s NPI number?
Peter 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 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 Lenhart, M.D.'s license?
NPPES lists Michigan license number 4301116956, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter Lenhart, M.D. prescribe under Medicare Part D?
In 2024, Peter Lenhart, M.D. had 6,084 Medicare Part D claims for 549 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.