Joseph L. Riethman, M.D.
NPI 1477548725ActiveIndividual· Obstetrics & Gynecology· Kalamazoo, MI
Obstetrics & Gynecology (M.D.) in Kalamazoo, Michigan, trained at Ohio State University College of Homeopathic Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $15,254 for 102 claims, against $3,796 paid for services in 2024. Biogen, Inc. was the largest of 3 companies reporting payments in 2025, $59.65 in all, mostly food and beverage.
Overview
| NPI | 1477548725 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 13, 2005 |
| Last updated in NPPES | Feb 1, 2022 |
| Certified by provider | Feb 1, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | JR060879 | 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 | 31 |
|---|---|
| Services billed | 41 across 13 procedure codes |
| Paid by Medicare | $3,796 |
Part D prescriptions in 2024
| Prescriptions (claims) | 102 · 237 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $15,254 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | Ohio State University College of Homeopathic Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Bronson Methodist HospitalKalamazoo, MI · 729 clinicians
Hospital affiliation
- Bronson Methodist HospitalKalamazoo, MI
Industry payments (Open Payments)
- 2025$59.65 · 3 payments from 3 companies
- 2024$58.27 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $21.14 | 1 |
| Astellas Pharma US Inc | $19.80 | 1 |
| Coopersurgical, Inc. | $18.71 | 1 |
What the 2025 payments were for
- Food and Beverage$59.65 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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