James M. Regan, M.D.
Surgical Critical Care Physician · Grand Rapids, MI
James M. Regan, M.D. is a surgical critical care physician with a practice address in Grand Rapids, Michigan, and NPI 1093061905, issued on Jul 29, 2012. Check the license (Michigan 4301113482, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- James M. Regan
- Credential
- M.D.
- Primary taxonomy
- Surgical Critical Care Physician 2086S0102X
- License numbers
- 4301113482 MI
125.062242 IL
Self-reported in NPPES; status is on the state search - Practice location
- 221 Michigan St NE Ste 400, Grand Rapids, MI 49503
- Phone
- (616) 486-9600
- Enumerated
- Jul 29, 2012
- Record last updated
- Oct 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210817001208); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical critical care physician records → All 88 in Michigan → Look up another NPI →
Also registered at 221 Michigan St NE Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Blumenfeld, MDSurgical Critical Care Physician1306465026
- Timothy Burton, M.D.Surgery Physician1306292859
- Cathryn Chadwick, MDSurgical Critical Care Physician1003945908
- Alistair Chapman, M.D.Surgical Critical Care Physician1225266331
- Eric Christianson, MDOrthopaedic Surgery Physician1861842759
- Todd Conlan, M.D.Orthopaedic Surgery Physician1215298732
Verify James M. Regan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301113482Check 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).
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).
James M. Regan among 88 surgical critical care physician records in Michigan
James M. Regan, M.D. is one of 88 surgical critical care physician records with a practice address in Michigan. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 64% of them.
- NPI issued2012 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2012 · median 2007 among the 71 with a school on file
- Record last updated2021 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Critical Care Physician providers in Michigan
There are 88 surgical critical care physician records in Michigan.
All 88 in Michigan → Every provider in Grand Rapids → Surgical Critical Care Physician nationwide →
The 8 surgical critical care physician records with the nearest ZIP codes
- Bruce Bonnell, M.D.Grand Rapids, MI 495031699771998
- Cathryn Chadwick, MDGrand Rapids, MI 495031003945908
- Alistair Chapman, M.D.Grand Rapids, MI 495031225266331
- Matthew Dull, M.D.Grand Rapids, MI 495031346503455
- Charles Gibson, M.DGrand Rapids, MI 495031740596402
- Richard Hagelberg, M.D.Grand Rapids, MI 495031568499598
- Patricia Pentiak, MDGrand Rapids, MI 495031083877120
- Bradley Sherman, D.O.Grand Rapids, MI 495031801102439
Common questions
What is James M. Regan, M.D.'s NPI number?
James M. Regan, M.D.'s National Provider Identifier (NPI) is 1093061905, issued on Jul 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is James M. Regan, M.D. located?
The NPPES record lists a practice address at 221 Michigan St NE Ste 400, Grand Rapids, MI, 49503. Phone: (616) 486-9600. Providers update this record themselves, so call before visiting.
How can I verify James M. Regan, M.D.'s license?
NPPES lists Michigan license number 4301113482, 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 James M. Regan, M.D.'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.