Brian Trethowan, MD
Critical Care Medicine (Anesthesiology) Physician · Grand Rapids, MI
Brian Trethowan, MD is a critical care medicine (anesthesiology) physician with a practice address in Grand Rapids, Michigan, and NPI 1386188761, issued on Dec 5, 2016. Check the license (Michigan 4301111216, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Brian Trethowan
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Anesthesiology) Physician 207LC0200X
- License number
- 4301111216 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 391-1774
- Enumerated
- Dec 5, 2016
- Record last updated
- Mar 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161229000285); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (anesthesiology) physician records → All 43 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 Brian Trethowan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301111216Check 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): 86.4 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: $362.42
4 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 394 providers of this specialty with any payment received $2,001.81 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 one group practice
- 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).
Brian Trethowan among 43 critical care medicine (anesthesiology) physician records in Michigan
Brian Trethowan, MD is one of 43 critical care medicine (anesthesiology) physician records with a practice address in Michigan. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 67% of them.
- NPI issued2016 · 67% of these records are older, 26% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1998 · median 2011 among the 32 with a school on file
- Record last updated2021 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LC0200X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Anesthesiology) Physician providers in Michigan
There are 43 critical care medicine (anesthesiology) physician records in Michigan.
All 43 in Michigan → Every provider in Grand Rapids → Critical Care Medicine (Anesthesiology) Physician nationwide →
The 8 critical care medicine (anesthesiology) physician records with the nearest ZIP codes
- Robert Fitzgerald, MDGrand Rapids, MI 495031619949765
- Richard Hackbarth, MDGrand Rapids, MI 495031912979220
- Ajay Khilanani, M.D.Grand Rapids, MI 495031043410400
- John Kopec, MDGrand Rapids, MI 495031710959028
- Anthony Olivero, M.D.Grand Rapids, MI 495031427221787
- Payal Boss, MDGrand Rapids, MI 495251245675024
- William Cederquist, MDJackson, MI 492011295961241
- Vinay Pallekonda, M.D.Jackson, MI 492011174661458
Common questions
What is Brian Trethowan, MD's NPI number?
Brian Trethowan, MD's National Provider Identifier (NPI) is 1386188761, issued on Dec 5, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Brian Trethowan, MD located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 391-1774. Providers update this record themselves, so call before visiting.
How can I verify Brian Trethowan, MD's license?
NPPES lists Michigan license number 4301111216, 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 Brian Trethowan, MD's MIPS final score?
The 2023 MIPS final score is 86.4 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.