Anthony Dwayne Williams, M.D.
Gastroenterology Physician · Southfield, MI
Anthony Dwayne Williams, M.D. is a gastroenterology physician with a practice address in Southfield, Michigan, and NPI 1245246354, issued on Jul 31, 2006. Check the license (Michigan 4301062274, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Anthony Dwayne Williams
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 4301062274 MI
Self-reported in NPPES; status is on the state search - Practice location
- 23077 Greenfield RD, Southfield, MI 48075
- Phone
- (248) 569-2160
- Enumerated
- Jul 31, 2006
- Record last updated
- Oct 27, 2023
- Fax
- (248) 569-5756
- Medicaid ID
- 4221369 MI
- Medicare enrollment
- Enrolled (PECOS I20071002000261); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 550 in Michigan → Look up another NPI →
Also registered at 23077 Greenfield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Anthony Dwayne Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301062274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average gastroenterology physician in 2024
1,125 Medicare Part D claims for 329 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Omeprazole155 claims
- Pantoprazole Sodium138 claims
- Sucralfate134 claims
- Famotidine104 claims
- Gavilyte-G93 claims
- Dicyclomine Hcl54 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Henry Ford Wyandotte HospitalWyandotte, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anthony Dwayne Williams among 550 gastroenterology physician records in Michigan
Anthony Dwayne Williams, M.D. is one of 550 gastroenterology physician records with a practice address in Michigan. 85% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 50% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1993 · median 2003 among the 415 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Michigan
There are 550 gastroenterology physician records in Michigan.
All 550 in Michigan → Every provider in Southfield → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Suhib Alhaj Ali, M.D.Southfield, MI 480751295472199
- Mark Devore, MDSouthfield, MI 480751578521217
- Prince Eubanks, MDSouthfield, MI 480751841391323
- Gregory Karris, MDSouthfield, MI 480751164401188
- Tushar Khanna, MDSouthfield, MI 480751669931432
- Pooja Mude, DOSouthfield, MI 480751780208892
- Reena Patel, M.D.Southfield, MI 480751831406412
- Freddy Sosa, M.D.Southfield, MI 480751003856410
Common questions
What is Anthony Dwayne Williams, M.D.'s NPI number?
Anthony Dwayne Williams, M.D.'s National Provider Identifier (NPI) is 1245246354, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anthony Dwayne Williams, M.D. located?
The NPPES record lists a practice address at 23077 Greenfield RD, Southfield, MI, 48075. Phone: (248) 569-2160. Providers update this record themselves, so call before visiting.
How can I verify Anthony Dwayne Williams, M.D.'s license?
NPPES lists Michigan license number 4301062274, 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.
How much does Anthony Dwayne Williams, M.D. prescribe under Medicare Part D?
In 2024, Anthony Dwayne Williams, M.D. had 1,125 Medicare Part D claims for 329 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.