Michael Opsommer
Emergency Medicine Physician · Troy, MI
Michael Opsommer is an emergency medicine physician with a practice address in Troy, Michigan, and NPI 1346201548, issued on Mar 29, 2006. Check the license (Michigan 4301063344, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Michael Opsommer
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 4301063344 MI
Self-reported in NPPES; status is on the state search - Practice location
- 44201 Dequindre RD, Troy, MI 48085
- Phone
- (248) 964-5111
- Enumerated
- Mar 29, 2006
- Record last updated
- Jul 29, 2022
- Medicaid ID
- 3416338 MI
- Medicare enrollment
- Enrolled (PECOS I20090309000424); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 44201 Dequindre RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary A Pogasic, BSN, RNStudent in an Organized Health Care Education/Training Program1184559080
- Salma Abd Elhamid, PA-CPhysician Assistant1457245730
- Ryan Achrem, PA-CPhysician Assistant1720672736
- Aisha Afzal, M.D.Internal Medicine Physician1538474440
- Yusaf Ahmed, MDAnesthesiology Physician1174152136
- Melissa Akash, PAPhysician Assistant1780950329
Verify Michael Opsommer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301063344Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average emergency medicine physician in 2024
126 Medicare Part D claims for 96 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen31 claims
- Prednisone20 claims
- Cephalexin12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Beaumont Medical Group Hospital Based ServicesTroy, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Opsommer among 3,083 emergency medicine physician records in Michigan
Michael Opsommer is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 77% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2013 among the 1,931 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 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 emergency medicine physician records list a practice address in Troy
They are 45 of the 3,809 NPPES records with a practice address in Troy, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Troy → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- William AndersonTroy, MI 480851548239304
- Aveh BastaniTroy, MI 480851821067877
- Kenneth BishopTroy, MI 480851407815681
- Chiara Cerasani, MDTroy, MI 480851689686701
- Blaine DennisTroy, MI 480851427017052
- Steven DimsdaleTroy, MI 480851437118833
- David DonaldsonTroy, MI 480851023077591
- Gjon Dushaj, MDTroy, MI 480851669426847
Common questions
What is Michael Opsommer's NPI number?
Michael Opsommer's National Provider Identifier (NPI) is 1346201548, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Opsommer located?
The NPPES record lists a practice address at 44201 Dequindre RD, Troy, MI, 48085. Phone: (248) 964-5111. Providers update this record themselves, so call before visiting.
How can I verify Michael Opsommer's license?
NPPES lists Michigan license number 4301063344, 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 Opsommer prescribe under Medicare Part D?
In 2024, Michael Opsommer had 126 Medicare Part D claims for 96 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Michael Opsommer's MIPS final score?
The 2023 MIPS final score is 84.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.