Michael Eerhart, MD
Internal Medicine Physician · Grand Rapids, MI
Michael Eerhart, MD is an internal medicine physician with a practice address in Grand Rapids, Michigan, and NPI 1508251596, issued on Apr 6, 2015. Check the license (Michigan 4301511906, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Michael Eerhart
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 4301511906 MI
68102-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4100 Lake Dr SE Ste 200, Grand Rapids, MI 49546
- Phone
- (616) 267-8244
- Enumerated
- Apr 6, 2015
- Record last updated
- Jul 3, 2024
- Entity
- Type 1 · individual
Also registered at 4100 Lake Dr SE Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rafael Bernal, DOInternal Medicine Physician1912692740
Verify Michael Eerhart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301511906Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
422 Medicare Part D claims for 64 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium32 claims
- Metoprolol Succinate22 claims
- Potassium Chloride18 claims
- Valsartan17 claims
- Albuterol Sulfate Hfa15 claims
- Gabapentin15 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: $102.96
4 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. 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.
451 internal medicine physician records list a practice address in Grand Rapids
They are 451 of the 18,005 NPPES records with a practice address in Grand Rapids, and 5,735 internal medicine physician records in Michigan.
All 451 in Grand Rapids → All 5,735 in Michigan → Every provider in Grand Rapids →
Other internal medicine physician records in Michigan
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- Ali Abbas, M.D.Pontiac, MI1972167526
- Sura Abbas, MDWarren, MI1801687405
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Valerie Abbott, MDSouthfield, MI1740289487
- Samer Abboud, MDSaginaw, MI1245804178
Common questions
What is Michael Eerhart, MD's NPI number?
Michael Eerhart, MD's National Provider Identifier (NPI) is 1508251596, issued on Apr 6, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Michael Eerhart, MD located?
The NPPES record lists a practice address at 4100 Lake Dr SE Ste 200, Grand Rapids, MI, 49546. Phone: (616) 267-8244. Providers update this record themselves, so call before visiting.
How can I verify Michael Eerhart, MD's license?
NPPES lists Michigan license number 4301511906, 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 Michael Eerhart, MD prescribe under Medicare Part D?
In 2024, Michael Eerhart, MD had 422 Medicare Part D claims for 64 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.