Ann M. Rehm, MD
NPI 1699756536ActiveIndividual· Obstetrics & Gynecology· Birmingham, MI
Obstetrics & Gynecology (MD) in Birmingham, Michigan, trained at Michigan State University College of Human Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $29,042 for 345 claims, against $13,971 paid for services in 2024. Astellas Pharma US Inc was the largest of 12 companies reporting payments in 2025, $743.34 in all, mostly food and beverage.
Overview
| NPI | 1699756536 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | Jul 20, 2022 |
| Certified by provider | Jul 20, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 4301054493 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 279 across 21 procedure codes |
| Paid by Medicare | $13,971 |
Part D prescriptions in 2024
| Prescriptions (claims) | 345 · 693 30-day fills |
|---|---|
| Patients | 120 |
| Total drug cost | $29,042 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Together Women's Health Medical Group, P.C.Grosse Pointe, MI · 76 clinicians
Hospital affiliations
- Beaumont Hospital - Farmington HillsFarmington Hills, MI
- Beaumont Hospital Royal OakRoyal Oak, MI
- Beaumont Hospital, TroyTroy, MI
Industry payments (Open Payments)
- 2025$743.34 · 26 payments from 12 companies
- 2024$488.40 · 17 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $215.25 | 8 |
| Hologic Sales and Service, LLC | $193.17 | 3 |
| Sumitomo Pharma America, Inc. | $106.96 | 5 |
| Sage Therapeutics, LLC | $52.06 | 2 |
| Organon LLC | $29.60 | 1 |
What the 2025 payments were for
- Food and Beverage$663.35 · 25 payments
- Education$79.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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