Michael John Trembowicz, D.O.
Anesthesiology Physician · Grand Rapids, MI
Michael John Trembowicz, D.O. is an anesthesiology physician with a practice address in Grand Rapids, Michigan, and NPI 1366632457, issued on Jul 26, 2007. Check the license (Michigan 5101017370, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Michael John Trembowicz
- Credential
- D.O.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 5101017370 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 391-1510
- Enumerated
- Jul 26, 2007
- Record last updated
- Feb 27, 2026
- Medicare enrollment
- Enrolled (PECOS I20121103000005); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,720 in Michigan → Look up another NPI →
Also registered at 100 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael John Trembowicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101017370Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 89 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).
Industry payments in 2024: $14.62
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 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.
Bills Medicare through 2 group practices
- Saint Mary's Health ServicesGrand Rapids, MI
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael John Trembowicz among 1,720 anesthesiology physician records in Michigan
Michael John Trembowicz, D.O. is one of 1,720 anesthesiology physician records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 45% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2001 · median 2006 among the 1,126 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Michigan
There are 1,720 anesthesiology physician records in Michigan.
All 1,720 in Michigan → Every provider in Grand Rapids → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- William Baguley, M.D.Grand Rapids, MI 495031215978002
- Rex Fouch, M.D.Grand Rapids, MI 495031376584144
- Keith Getz, M.D.Grand Rapids, MI 495031710928585
- Sean Growney, DOGrand Rapids, MI 495031720049950
- John Huntington, MDGrand Rapids, MI 495031558340380
- Shelly Kahler, M.D.Grand Rapids, MI 495031770531022
- Matthew Parlmer, DOGrand Rapids, MI 495031801860002
- Roxanne Richards, MDGrand Rapids, MI 495031710983226
Common questions
What is Michael John Trembowicz, D.O.'s NPI number?
Michael John Trembowicz, D.O.'s National Provider Identifier (NPI) is 1366632457, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael John Trembowicz, D.O. located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 391-1510. Providers update this record themselves, so call before visiting.
How can I verify Michael John Trembowicz, D.O.'s license?
NPPES lists Michigan license number 5101017370, 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.
What is Michael John Trembowicz, D.O.'s MIPS final score?
The 2023 MIPS final score is 89 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.