Simon John Warren, MD
Dermatopathology (Pathology) Physician · Ann Arbor, MI
Simon John Warren, MD is a dermatopathology (pathology) physician with a practice address in Ann Arbor, Michigan, and NPI 1407828684, issued on Feb 2, 2006. Check the license (Michigan 4301512285, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Simon John Warren
- Credential
- MD
- Primary taxonomy
- Dermatopathology (Pathology) Physician 207ZD0900X
- License numbers
- 4301512285 MI
ME93737 FL
01065084A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 936-4000
- Enumerated
- Feb 2, 2006
- Record last updated
- Oct 15, 2024
- Medicaid IDs
- 200894770 IN
030682700 FL - Medicare enrollment
- Enrolled (PECOS I20241029001131); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatopathology (pathology) physician records → All 12 in Michigan → Look up another NPI →
Also registered at 1500 E Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Simon John Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301512285Check 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).
Simon John Warren among 12 dermatopathology (pathology) physician records in Michigan
Simon John Warren, MD is one of 12 dermatopathology (pathology) physician records with a practice address in Michigan. 58% 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 0% of them.
- NPI issued2006 · 0% of these records are older, 33% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZD0900X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatopathology (Pathology) Physician providers in Michigan
There are 12 dermatopathology (pathology) physician records in Michigan.
All 12 in Michigan → Every provider in Ann Arbor → Dermatopathology (Pathology) Physician nationwide →
The 8 dermatopathology (pathology) physician records with the nearest ZIP codes
- Douglas Fullen, MDAnn Arbor, MI 481091730260183
- Brian Schapiro, M.D.Ann Arbor, MI 481081710956123
- Joseph Kaufman, M.D.Warren, MI 480931912008707
- Grace Wang, M.D.Lambertville, MI 481441689094179
- Limin Yu, M.D.Royal Oak, MI 480731992828560
- Mary Beth Anderson, D.O.Clinton Township, MI 480361457419160
- Christopher Schwimer, D.O.Bingham Farms, MI 480251417918509
- Andrew Thompson, M.D., PH.D.Detroit, MI 482011720107816
Common questions
What is Simon John Warren, MD's NPI number?
Simon John Warren, MD's National Provider Identifier (NPI) is 1407828684, issued on Feb 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Simon John Warren, MD located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4000. Providers update this record themselves, so call before visiting.
How can I verify Simon John Warren, MD's license?
NPPES lists Michigan license number 4301512285, 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.