Dr. Ann M. Rehm, MD
- Medicare services, 2024
- 240
- Medicare patients, 2024
- 139
- Part D claims, 2024
- 345
- MIPS score, 2024
- 92
- Hospital affiliations
- 3
- 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. Rehm'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. Ann M. Rehm is an OB-GYN in Royal Oak, Michigan
Dr. Rehm practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health.
Dr. Rehm's NPI, 1699756536, was assigned on November 8, 2005. Dr. Rehm graduated from Michigan State University College of Human Medicine in 1989. Dr. Rehm holds Michigan license 4301054493.
- NPI
- 1699756536NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012967615
- NPI enumeration date
- November 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 898-5400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ann M. Rehm practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan
Dr. Rehm'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. Ann M. Rehm is affiliated with 5 sites of care and 3 medical groups
Dr. Rehm's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dr. Rehm is also affiliated with Corewell Health Beaumont Troy Hospital. The medical group on file is Corewell Health William Beaumont University Hospital. Dmand AI also links Dr. Rehm to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ann M. Rehm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rehm practices, 5 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 |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ann M. Rehm is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Rehm's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Rehm is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Rehm
Counts of OB-GYNs 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. Ann M. Rehm billed Medicare for 240 services in 2024
CMS data shows 240 Medicare services from Dr. Rehm across 5 procedure codes in 2024, for 139 Medicare patients. Medicare paid $10,501 for them. Every service was in an office.
Dr. Rehm's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Other services
- 2022: 282024: 179539%
- Office and hospital visits
- 2022: 412024: 6149%
- Lab and pathology
- 2022: 522024: 0100%
Dr. Rehm compared with the Michigan median for OB-GYNs, 2024
- Dr. Rehm
- Michigan median
- Medicare services
- 240vs 376.5 times
- Medicare patients
- 139vs 334.2 times
- Part D claims
- 202vs 385.3 times
Medians across 1,227 OB-GYNs in Michigan with Dmand AI profiles that report each measure.
Dr. Rehm's most billed Medicare procedure codes, 2024
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. Rehm and other OB-GYNs in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ann M. Rehm treated 139 Medicare patients in 2024, average age 71
CMS counts 139 Medicare patients who saw Dr. Rehm in 2024. The largest group is 65 to 74, with 97 patients. 75% of them have high cholesterol, and 58% have high blood pressure. Their average risk score is 0.67, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Rehm's median patient age at 48, with 99% women.
Dr. Rehm's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Rehm's Medicare patients, 2024
- High cholesterol75%
- High blood pressure58%
- Arthritis33%
- Osteoporosis31%
- Anxiety24%
- Ischemic heart disease18%
- Cancer16%
- Mood disorders14%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rehm's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ann M. Rehm wrote 345 Medicare Part D claims in 2024
In 2024, Dr. Rehm wrote 345 Medicare Part D claims for 120 patients. 86% of them were for generic drugs. CMS names the drug for 202 of them, across 9 drugs with 11 or more claims each, at $12,366 in total drug cost. In 2023, CMS named 154 claims across 8 drugs.
Dr. Rehm's Part D claims by kind of drug, 2024
- Generic295 claims86%
- Brand-name50 claims14%
Dr. Rehm's 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.
Drug classes CMS tracks in Dr. Rehm's Part D claims, 2024
- Antibiotics7%24 of 345 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1542024: 20231%
Drugs named by CMS: 9 in 2024, 8 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. Ann M. Rehm scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Rehm for performance year 2024, reported as part of a group. Dr. Rehm accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Rehm's MIPS scores, performance year 2024
- 92of 100Final score
- 84.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ann M. Rehm received $3,733 in industry payments from 2016 to 2025
CMS Open Payments shows 150 general payments to Dr. Rehm from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 89% of the total. Astellas Pharma US Inc paid the most, $775.
General payments to Dr. Rehm by program year, 2016 to 2025
General payments to Dr. Rehm by kind, 2016 to 2025
- Food and beverage$3,32189%
- Education$41211%
Companies that paid Dr. Rehm 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. Ann M. Rehm graduated from Michigan State University College of Human Medicine
Dr. Rehm graduated from Michigan State University College of Human Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ann M. Rehm'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)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. Ann M. Rehm
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. Ann M. Rehm's NPI number?
Dr. Ann M. Rehm's NPI number is 1699756536. It was assigned on November 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ann M. Rehm?
Dr. Ann M. Rehm is an OB-GYN in Royal Oak, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Ann M. Rehm practice?
Dr. Rehm practices at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073. Dr. Rehm's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dmand AI also links Dr. Rehm to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Dr. Ann M. Rehm's office phone number?
The practice phone on file for Dr. Rehm is (248) 898-5400.
What is Dr. Ann M. Rehm's medical license number?
Dr. Rehm holds Michigan license 4301054493.
Which hospitals is Dr. Ann M. Rehm affiliated with?
Dr. Rehm practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan. Dr. Rehm is also affiliated with Corewell Health Beaumont Troy Hospital. Dmand AI links Dr. Rehm to 1 more hospital.
What medical group is Dr. Ann M. Rehm part of?
Dr. Rehm is linked to Corewell Health William Beaumont University Hospital. Dmand AI links Dr. Rehm to 2 more medical groups.
Does Dr. Ann M. Rehm accept Medicare?
Yes. CMS data shows Dr. Rehm billed Medicare for 240 services in 2024, and Dr. Rehm accepts Medicare assignment.
What is Dr. Ann M. Rehm's MIPS score?
Dr. Rehm's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Ann M. Rehm see?
CMS counts 139 Medicare patients who saw Dr. Rehm in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Ann M. Rehm bill to Medicare?
In 2024, Dr. Rehm's most billed Medicare services were medicare service (G0101), medicare service (G0444) and office visit, established patient (99213).
Where did Dr. Ann M. Rehm go to medical school?
Dr. Rehm graduated from Michigan State University College of Human Medicine in 1989.
What drugs does Dr. Ann M. Rehm prescribe most?
In 2024 Medicare Part D data, Dr. Rehm's most prescribed drugs by claims were Estradiol, Valacyclovir and Clobetasol Propionate.
Has Dr. Ann M. Rehm received payments from drug or device companies?
CMS Open Payments shows $3,733 in general payments to Dr. Rehm from 35 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Ann M. Rehm been practicing?
Dr. Rehm graduated from medical school in 1989, 37 years ago.
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