Dr. Michael J. Williams, MD
- Medicare services, 2023
- 863
- Part D claims, 2024
- 1,054
- MIPS score, 2024
- 86
- Industry payments
- $689
- Affiliated sites
- 3
- Practice address
- 1701 South E Blvd, Rochester Hills, MI 48307
- Practice phone
- Call (248) 997-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arcturus Healthcare PLC
Rochester Hills, Michigan
Find Dr. Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael J. Williams is an internist in Rochester Hills, Michigan
Dr. Williams practices at Arcturus Healthcare PLC in Rochester Hills, Michigan.
Dr. Williams' NPI, 1821076456, was assigned on January 4, 2006. Dr. Williams graduated from Wayne State University School of Medicine in 1991. Dr. Williams holds Michigan license 4301065754.
- NPI
- 1821076456NPI Registry (opens in a new tab)
- NPI enumeration date
- January 4, 2006
- NPI status
- Active
- Practice phone
- (248) 997-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Michael J. Williams practices at Arcturus Healthcare PLC in Rochester Hills, Michigan
Dr. Williams' primary practice is Arcturus Healthcare PLC, at 1701 South E Blvd, Rochester Hills, MI 48307 in Oakland County. The practice phone is (248) 997-7000.
- Arcturus Healthcare PLC1701 South E Blvd, Rochester Hills, MI 48307 · Oakland CountyPhone(248) 997-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael J. Williams is affiliated with 4 sites of care and 3 medical groups
Dr. Williams' primary practice is Arcturus Healthcare PLC in Rochester Hills, Michigan. The medical group on file is PRISM Medical Group. Dmand AI also links Dr. Williams to 3 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael J. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arcturus Healthcare PLC | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Williams is one of 4,804 internists in Michigan
Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williams is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Williams
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael J. Williams billed Medicare for 863 services in 2023
CMS data shows 863 Medicare services from Dr. Williams across 15 procedure codes in 2023. Medicare paid $25,364 for them. Every service was in an office.
Dr. Williams' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Lab and pathology
- 2022: 2572023: 2591%
- Office and hospital visits
- 2022: 3032023: 25715%
- Other services
- 2022: 1482023: 19129%
- Surgery
- 2022: 1152023: 1215%
- Tests and treatments
- 2022: 552023: 3536%
Dr. Williams compared with the Michigan median for internists, 2023
- Dr. Williams
- Michigan median
- Medicare services
- 863vs 4232.0 times
- Part D claims
- 653vs 3142.1 times
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Williams' patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 62, with 40% women.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Michael J. Williams wrote 1,054 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 1,054 Medicare Part D claims for 211 patients. 93% of them were for generic drugs. CMS names the drug for 653 of them, across 22 drugs with 11 or more claims each, at $7,626 in total drug cost. In 2023, CMS named 2,562 claims across 71 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic978 claims93%
- Brand-name76 claims7%
Dr. Williams' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,5622024: 65375%
Drugs named by CMS: 22 in 2024, 71 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael J. Williams scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Williams for performance year 2024, reported as part of a group.
Dr. Williams' MIPS scores, performance year 2024
- 86of 100Final score
- 82.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Michael J. Williams received $689 in industry payments from 2016 to 2023
CMS Open Payments shows 49 general payments to Dr. Williams from 11 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $163.
General payments to Dr. Williams by program year, 2016 to 2023
Companies that paid Dr. Williams the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Williams graduated from Wayne State University School of Medicine
Dr. Williams graduated from Wayne State University School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael J. Williams's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael J. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael J. Williams' NPI number?
Dr. Michael J. Williams' NPI number is 1821076456. It was assigned on January 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Williams?
Dr. Michael J. Williams is an internist in Rochester Hills, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael J. Williams practice?
Dr. Williams practices at 1701 South E Blvd, Rochester Hills, MI 48307. Dr. Williams' primary practice is Arcturus Healthcare PLC in Rochester Hills, Michigan. Dmand AI also links Dr. Williams to 3 group practices and clinics and 2 medical groups.
What is Dr. Michael J. Williams' office phone number?
The practice phone on file for Dr. Williams is (248) 997-7000.
What is Dr. Michael J. Williams' medical license number?
Dr. Williams holds Michigan license 4301065754.
What medical group is Dr. Michael J. Williams part of?
Dr. Williams is linked to PRISM Medical Group. Dmand AI links Dr. Williams to 2 more medical groups.
Does Dr. Michael J. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 863 services in 2023.
What is Dr. Michael J. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
What services does Dr. Michael J. Williams bill to Medicare?
In 2023, Dr. Williams' most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
Where did Dr. Michael J. Williams go to medical school?
Dr. Williams graduated from Wayne State University School of Medicine in 1991.
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What drugs does Dr. Michael J. Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Omeprazole.
Has Dr. Michael J. Williams received payments from drug or device companies?
CMS Open Payments shows $689 in general payments to Dr. Williams from 11 companies from 2016 to 2023. The largest total came from Novo Nordisk Inc.
How long has Dr. Michael J. Williams been practicing?
Dr. Williams graduated from medical school in 1991, 35 years ago.
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