Mark Weismiller, MD
Surgery Physician · Saint Johns, MI
Mark Weismiller, MD is a surgery physician with a practice address in Saint Johns, Michigan, and NPI 1205128816, issued on May 15, 2011. Check the license (Michigan 4301098816, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Mark Weismiller
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 4301098816 MI
Self-reported in NPPES; status is on the state search - Practice location
- 901 S Oakland St, Saint Johns, MI 48879
- Phone
- (989) 224-2338
- Enumerated
- May 15, 2011
- Record last updated
- Nov 8, 2022
- Fax
- (989) 224-2065
- Medicare enrollment
- Enrolled (PECOS I20160729000739); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,376 in Michigan → Look up another NPI →
Also registered at 901 S Oakland St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Justin Keeler, PHARM.D.Pharmacist1861285843
- Kay McLaughlin, D.O.Internal Medicine Physician1407827868
- Mary PaxtonPharmacist1497603096
- Danielle Rodewald, PHARMDPharmacist1093377962
Verify Mark Weismiller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301098816Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average surgery physician in 2024
217 Medicare Part D claims for 143 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 58 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen50 claims
- Sutab50 claims
- Ondansetron Hcl19 claims
- Pantoprazole Sodium18 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
- Sparrow Clinton HospitalSt Johns, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Weismiller among 1,376 surgery physician records in Michigan
Mark Weismiller, MD is one of 1,376 surgery physician records with a practice address in Michigan. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 56% of them.
- NPI issued2011 · 56% of these records are older, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2011 · median 2006 among the 721 with a school on file
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Michigan
There are 1,376 surgery physician records in Michigan.
All 1,376 in Michigan → Every provider in Saint Johns → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Walid Azmeh, M.D.Owosso, MI 488671063527182
- Daniel Barnas, MDOwosso, MI 488671962495614
- Richard Schulz, D.O.Owosso, MI 488671225141559
- Sasha Spencley, DOOwosso, MI 488671427409762
- Joseph Testa, DOOwosso, MI 488671336325745
- Maris Kazmers, MDOkemos, MI 488641861598575
- Amitava Ghosh, M.D.Mt Pleasant, MI 488581881694586
- Anne Missavage, M.D.Mount Pleasant, MI 488581538273222
Common questions
What is Mark Weismiller, MD's NPI number?
Mark Weismiller, MD's National Provider Identifier (NPI) is 1205128816, issued on May 15, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mark Weismiller, MD located?
The NPPES record lists a practice address at 901 S Oakland St, Saint Johns, MI, 48879. Phone: (989) 224-2338. Providers update this record themselves, so call before visiting.
How can I verify Mark Weismiller, MD's license?
NPPES lists Michigan license number 4301098816, 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 Mark Weismiller, MD prescribe under Medicare Part D?
In 2024, Mark Weismiller, MD had 217 Medicare Part D claims for 143 beneficiaries; the average among surgery physician prescribers was 147. 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.