Michael J. Williams, MD
Internal Medicine Physician · Rochester Hills, MI
Michael J. Williams, MD is an internal medicine physician with a practice address in Rochester Hills, Michigan, and NPI 1821076456, issued on Jan 4, 2006. Check the license (Michigan 4301065754, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Michael J. Williams
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301065754 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1701 South Blvd E, Rochester Hills, MI 48307
- Phone
- (248) 293-1002
- Enumerated
- Jan 4, 2006
- Record last updated
- Dec 27, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (248) 293-1272
- Medicaid ID
- 3522770 MI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 1701 South Blvd E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Soyoun Bark, M.D.Obstetrics & Gynecology Physician1902149743
- Sarah Basile, FNP-BCFamily Nurse Practitioner1487320792
- Bret Bielawski, DOInternal Medicine Physician1437149671
- Melinda Blesch, RDRegistered Dietitian1679872592
Verify Michael J. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301065754Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,054 Medicare Part D claims for 211 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium87 claims
- Amlodipine Besylate72 claims
- Omeprazole60 claims
- Levothyroxine Sodium50 claims
- Lisinopril50 claims
- Metoprolol Succinate50 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.
Michael J. Williams among 5,735 internal medicine physician records in Michigan
Michael J. Williams, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2017 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 internal medicine physician records list a practice address in Rochester Hills
They are 63 of the 1,697 NPPES records with a practice address in Rochester Hills, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Rochester Hills → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Bering, MDRochester Hills, MI 483071861482846
- Bret Bielawski, DORochester Hills, MI 483071437149671
- Gina Buccalo, MDRochester, MI 483071124002498
- Fadi Demashkieh, MDRochester Hills, MI 483071396726808
- Mara Geiger, MDRochester Hills, MI 483071003806241
- Todd Hachigian, MDRochester Hills, MI 483071053301713
- Anna Kulczycki-Mittag, MDRochester Hills, MI 483071801886049
- Andrew Madak, D.O.Rochester Hills, MI 483071588656755
Common questions
What is Michael J. Williams, MD's NPI number?
Michael J. Williams, MD's National Provider Identifier (NPI) is 1821076456, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Williams, MD located?
The NPPES record lists a practice address at 1701 South Blvd E, Rochester Hills, MI, 48307. Phone: (248) 293-1002. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Williams, MD's license?
NPPES lists Michigan license number 4301065754, 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 Michael J. Williams, MD prescribe under Medicare Part D?
In 2024, Michael J. Williams, MD had 1,054 Medicare Part D claims for 211 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.