John B. Llewelyn, MD
NPI 1942209424ActiveIndividual· Obstetrics & Gynecology· Saginaw, MI
Obstetrics & Gynecology (MD) in Saginaw, Michigan, trained at University of Iowa, Rj & L Carver College of Medicine (class of 1989). 74 Medicare patients in 2024, $9,647 paid; nearly all of their 177 Part D prescriptions were generic (94%). Hologic Sales and Service, LLC reported $29.54 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1942209424 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 18, 2005 |
| Last updated in NPPES | May 28, 2025 |
| Certified by provider | May 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 4301060216 | MI |
| Specialist | 174400000X | JL060216 | 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 (IA); Practitioner - Obstetrics/Gynecology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 151 across 23 procedure codes |
| Paid by Medicare | $9,647 |
Part D prescriptions in 2024
| Prescriptions (claims) | 177 · 354 30-day fills |
|---|---|
| Patients | 52 |
| Total drug cost | $12,497 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Genesis Health SystemDe Witt, IA · 224 clinicians
Industry payments (Open Payments)
- 2025$29.54 · 1 payment from 1 company
- 2024$200.03 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $29.54 | 1 |
What the 2025 payments were for
- Food and Beverage$29.54 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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