William Thomas Mangan, DO
Family Medicine Physician · Okemos, MI
William Thomas Mangan, DO is a family medicine physician with a practice address in Okemos, Michigan, and NPI 1851392195, issued on Aug 9, 2005. Check the license (Michigan 5101011930, as entered in NPPES) on the Michigan Board of Medicine (LARA); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Thomas Mangan
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 5101011930 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3413 Woods Edge Drive, Okemos, MI 48864
- Phone
- (517) 349-3303
- Enumerated
- Aug 9, 2005
- Record last updated
- Jul 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (517) 349-4374
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 3413 Woods Edge Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Sloan, PA-CMedical Physician Assistant1265623425
Verify William Thomas Mangan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101011930Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Thomas Mangan among 6,013 family medicine physician records in Michigan
William Thomas Mangan, DO is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2016 · 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 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 family medicine physician records list a practice address in Okemos
They are 33 of the 1,487 NPPES records with a practice address in Okemos, and 6,013 family medicine physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 6,013 in Michigan → Every provider in Okemos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Maher Al-Sheikh, MDOkemos, MI 488641467565440
- Joseph Armovit, D.O.Okemos, MI 488641457308330
- Quinn Bosworth, DOOkemos, MI 488641063440592
- Kashmira Chinoy, M.D.Okemos, MI 488641831184928
- George Horn, MDOkemos, MI 488641245298603
- Vicki Manzano, DOOkemos, MI 488641124006259
- Orlando Matias, D.OOkemos, MI 488641992773402
- Dennis Perry, M.D.Okemos, MI 488641770578965
Common questions
What is William Thomas Mangan, DO's NPI number?
William Thomas Mangan, DO's National Provider Identifier (NPI) is 1851392195, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Thomas Mangan, DO located?
The NPPES record lists a practice address at 3413 Woods Edge Drive, Okemos, MI, 48864. Phone: (517) 349-3303. Providers update this record themselves, so call before visiting.
How can I verify William Thomas Mangan, DO's license?
NPPES lists Michigan license number 5101011930, 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. 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.