Dr. Michael J. Simpson, MD
- Medicare services, 2021
- 3,724
- Part D claims, 2023
- 30
- Hospital affiliations
- 1
- Industry payments
- $9,560
- Medical group
- 1
- Practice address
- 3601 W Thirteen Mile Rd, Royal Oak, MI 48073
- Practice phone
- Call (248) 898-5400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Simpson's 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. Simpson is an internist in Royal Oak, Michigan
Dr. Simpson practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health.
Dr. Simpson's NPI, 1245208321, was assigned on March 14, 2006. Dr. Simpson graduated from Wayne State University School of Medicine in 1978. Dr. Simpson holds Michigan license 4301045180.
- NPI
- 1245208321NPI Registry (opens in a new tab)
- NPI enumeration date
- March 14, 2006
- NPI status
- Active
- Practice phone
- (248) 898-5400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Michael J. Simpson practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan
Dr. Simpson's primary practice is Corewell Health William Beaumont University Hospital, at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073 in Oakland County. The practice phone is (248) 898-5400.
- Corewell Health William Beaumont University Hospital3601 W Thirteen Mile Rd, Royal Oak, MI 48073 · Oakland CountyPhone(248) 898-5400
Source: Dmand AI Affiliation Data
Dr. Michael J. Simpson is affiliated with 2 sites of care and 1 medical group
Dr. Simpson's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. The medical group on file is PRISM Medical Group. Dmand AI also links Dr. Simpson to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael J. Simpson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simpson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health William Beaumont University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Simpson is one of 4,804 internists in Michigan
Internal medicine is Dr. Simpson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Simpson is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Simpson
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. Simpson billed Medicare for 3,724 services in 2021
CMS data shows 3,724 Medicare services from Dr. Simpson across 20 procedure codes in 2021. Medicare paid $87,416 for them. Every service was in an office.
Dr. Simpson's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Drugs given in the office
- 2020: 2,4602021: 1,86024%
- Lab and pathology
- 2020: 1,6062021: 82049%
- Office and hospital visits
- 2020: 1,0182021: 54946%
- Surgery
- 2020: 6032021: 35940%
- Imaging
- 2020: 1142021: 8129%
- Tests and treatments
- 2020: 3012021: 5582%
- Other services
- 2020: 2362021: 0100%
Dr. Simpson compared with the Michigan median for internists, 2021
- Dr. Simpson
- Michigan median
- Medicare services
- 3,724vs 4238.8 times
- Part D claims
- 30vs 31490% below
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Simpson's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Simpson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simpson 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. Simpson's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Simpson's median patient age at 69, with 41% women.
Dr. Simpson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women41%
- Men59%
Source: Dmand AI Patient Panel Data
Dr. Michael J. Simpson wrote 30 Medicare Part D claims in 2023
In 2023, Dr. Simpson wrote 30 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $1,063 in total drug cost. In 2022, CMS named 43 claims across 3 drugs.
Dr. Simpson's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 432023: 3030%
Drugs named by CMS: 2 in 2023, 3 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Michael J. Simpson received $9,560 in industry payments from 2016 to 2025
CMS Open Payments shows 412 general payments to Dr. Simpson from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 88% of the total. Amgen Inc. paid the most, $1,693.
General payments to Dr. Simpson by program year, 2016 to 2025
General payments to Dr. Simpson by kind, 2016 to 2025
- Food and beverage$8,44788%
- Travel and lodging$1,08811%
- Education$250%
Companies that paid Dr. Simpson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Simpson graduated from Wayne State University School of Medicine
Dr. Simpson graduated from Wayne State University School of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael J. Simpson'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| 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. Simpson
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. Simpson's NPI number?
Dr. Michael J. Simpson's NPI number is 1245208321. It was assigned on March 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Simpson?
Dr. Michael J. Simpson is an internist in Royal Oak, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael J. Simpson practice?
Dr. Simpson practices at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073. Dr. Simpson's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dmand AI also links Dr. Simpson to 1 group practice or clinic.
What is Dr. Michael J. Simpson's office phone number?
The practice phone on file for Dr. Simpson is (248) 898-5400.
What is Dr. Michael J. Simpson's medical license number?
Dr. Simpson holds Michigan license 4301045180.
Which hospitals is Dr. Michael J. Simpson affiliated with?
Dr. Simpson practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan.
What medical group is Dr. Michael J. Simpson part of?
Dr. Simpson is linked to PRISM Medical Group.
Does Dr. Michael J. Simpson accept Medicare?
Yes. CMS data shows Dr. Simpson billed Medicare for 3,724 services in 2021.
What services does Dr. Michael J. Simpson bill to Medicare?
In 2021, Dr. Simpson's most billed Medicare services were injected or infused drug (J0897), surgery: heart and blood vessels (36415) and office visit, established patient (99213).
Where did Dr. Michael J. Simpson go to medical school?
Dr. Simpson graduated from Wayne State University School of Medicine in 1978.
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What drugs does Dr. Michael J. Simpson prescribe most?
In 2023 Medicare Part D data, Dr. Simpson's most prescribed drugs by claims were Quetiapine Fumarate and Trazodone HCl.
Has Dr. Michael J. Simpson received payments from drug or device companies?
CMS Open Payments shows $9,560 in general payments to Dr. Simpson from 31 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Michael J. Simpson been practicing?
Dr. Simpson graduated from medical school in 1978, 48 years ago.
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