Ryan Diederich, MD
NPI 1942422498ActiveIndividual· Surgery, Plastic and Reconstructive Surgery· Glen Carbon, IL
Surgery, Plastic and Reconstructive Surgery (MD) in Glen Carbon, Illinois, licensed in IL, with an NPI issued in May 2007. Part D covered 72 prescriptions written in 2024, 99% of them generic. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $457.15 in all, mostly food and beverage.
Overview
| NPI | 1942422498 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 3, 2007 |
| Last updated in NPPES | Aug 21, 2024 |
| Certified by provider | Aug 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Plastic and Reconstructive Surgery Primary | 2086S0122X | 125-050203 | IL |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 72 · 72 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $576.50 |
| Generic share | 99% of claims |
Industry payments (Open Payments)
- 2025$457.15 · 9 payments from 4 companies
- 2024$217.34 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $250.84 | 6 |
| Mentor Worldwide LLC | $105.18 | 1 |
| Galderma Laboratories, L.P. | $62.93 | 1 |
| Motiva USA, LLC | $38.20 | 1 |
What the 2025 payments were for
- Food and Beverage$457.15 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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