Sean R. Williamson, M.D
Anatomic Pathology & Clinical Pathology Physician · Detroit, MI
Sean R. Williamson, M.D is an anatomic pathology & clinical pathology physician with a practice address in Detroit, Michigan, and NPI 1386805489, issued on Jun 20, 2008. Check the license on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Sean R. Williamson
- Credential
- M.D
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 01070511A IN
Self-reported in NPPES; status is on the state search - Practice location
- 2799 W Grand Blvd, Detroit, MI 48202
- Phone
- (313) 352-6950
- Enumerated
- Jun 20, 2008
- Record last updated
- Jul 14, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200609002100); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 561 in Michigan → Look up another NPI →
Also registered at 2799 W Grand Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Therese Abad, MDInternal Medicine Physician1700573359
- Muhammad Abbas, MDStudent in an Organized Health Care Education/Training Program1417607474
- Omar Abbas, MDAnatomic Pathology & Clinical Pathology Physician1417687450
- Ammaar Abbasi, M.D.Student in an Organized Health Care Education/Training Program1558005157
- Josianne Abboud, MDAnesthesiology Physician1912342791
- Sai Abburi, DOStudent in an Organized Health Care Education/Training Program1124962915
Verify Sean R. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospitals and group practices
- Cleveland ClinicCleveland, OH · Acute Care Hospitals4 of 5 stars
- Wooster Clinic LLCWooster, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sean R. Williamson among 561 anatomic pathology & clinical pathology physician records in Michigan
Sean R. Williamson, M.D is one of 561 anatomic pathology & clinical pathology physician records with a practice address in Michigan. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 36% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2008 · median 2002 among the 306 with a school on file
- Record last updated2013 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Michigan
There are 561 anatomic pathology & clinical pathology physician records in Michigan.
All 561 in Michigan → Every provider in Detroit → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Gary Assarian, D.O.Detroit, MI 482021952353765
- Nigel Bramwell, M.D.Detroit, MI 482021275516163
- Arthur Eisenbrey, M.D., PH.D.Detroit, MI 482021598736407
- Mehsati Herawi, M.D., PH.D.Detroit, MI 482021023097300
- Kedar Inamdar, M.D., PH.D.Detroit, MI 482021093890469
- Kristin Karner, MDDetroit, MI 482021881733822
- Seung Kim, MD., PH.D.Detroit, MI 482021871616391
- Theodore Mayer, M.D.Detroit, MI 482021194732958
Common questions
What is Sean R. Williamson, M.D's NPI number?
Sean R. Williamson, M.D's National Provider Identifier (NPI) is 1386805489, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sean R. Williamson, M.D located?
The NPPES record lists a practice address at 2799 W Grand Blvd, Detroit, MI, 48202. Phone: (313) 352-6950. Providers update this record themselves, so call before visiting.
How can I verify Sean R. Williamson, M.D's license?
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.