Jeffrey S. Warren, MD
Immunopathology Physician · Ann Arbor, MI
Jeffrey S. Warren, MD is an immunopathology physician with a practice address in Ann Arbor, Michigan, and NPI 1912089897, issued on Oct 19, 2006. Check the license (Michigan 4301051563, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jeffrey S. Warren
- Credential
- MD
- Primary taxonomy
- Immunopathology Physician 207ZI0100X
- License number
- 4301051563 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 East Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (800) 862-7284
- Enumerated
- Oct 19, 2006
- Record last updated
- May 7, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 1871252 MI
- Medicare enrollment
- Enrolled (PECOS I20100225000635); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1980
- Entity
- Type 1 · individual
Also registered at 1500 East Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samia Abdelnabi, CNMAdvanced Practice Midwife1639404320
- Mahshid Abir, MDEmergency Medicine Physician1790988632
- Barbara Adams, MDPediatric Rheumatology Physician1962412577
- David Adams, MBBSAnesthesiology Physician1346484417
- Michael Adams, M.D.Internal Medicine Physician1780065284
- Gaury Adhikary, MDAnesthesiology Physician1629094297
Verify Jeffrey S. Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301051563Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regents OF The University OF MichiganAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Immunopathology Physician providers in Michigan
There are 3 immunopathology physician records in Michigan.
Other immunopathology physician records in Michigan
- John Carey, M.D.Detroit, MI1104974815
- Peter Ward, MDAnn Arbor, MI1659453538
Common questions
What is Jeffrey S. Warren, MD's NPI number?
Jeffrey S. Warren, MD's National Provider Identifier (NPI) is 1912089897, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey S. Warren, MD located?
The NPPES record lists a practice address at 1500 East Medical Center Dr, Ann Arbor, MI, 48109. Phone: (800) 862-7284. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey S. Warren, MD's license?
NPPES lists Michigan license number 4301051563, 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.
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.