Gretchen B. Mason, PA-C
NPI 1245229111ActiveIndividual· Physician Assistant· Herrin, IL
Physician Assistant (PA-C) with Select Physical Therapy Holdings Inc and 2 other groups, practicing in Herrin, Illinois. 415 Medicare patients in 2024, $74,467 paid; nearly all of their 125 Part D prescriptions were generic (92%). Stryker Corporation was the largest of 4 companies reporting payments in 2025, $262.42 in all, mostly food and beverage. Lists Herrin Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1245229111 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 13, 2005 |
| Last updated in NPPES | Mar 25, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0850003442 | 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) | Enrolled Practitioner - Physician Assistant (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 415 |
|---|---|
| Services billed | 1,248 across 24 procedure codes |
| Paid by Medicare | $74,467 |
Part D prescriptions in 2024
| Prescriptions (claims) | 125 · 151 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $6,190 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Select Physical Therapy Holdings IncClarksville, TN · 2,024 clinicians
- Deaconess Illinois Specialty Clinic, Inc.Harrisburg, IL · 148 clinicians
- Southern Orthopedic Associates SCCarbondale, IL · 30 clinicians
Hospital affiliations
- Herrin HospitalHerrin, IL
- Memorial Hospital of CarbondaleCarbondale, IL
Industry payments (Open Payments)
- 2025$262.42 · 10 payments from 4 companies
- 2024$93.55 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $127.27 | 2 |
| Ferring Pharmaceuticals Inc. | $61.31 | 4 |
| Radius Health, Inc. | $52.06 | 3 |
| Vertex Pharmaceuticals Incorporated | $21.78 | 1 |
What the 2025 payments were for
- Food and Beverage$262.42 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 physician assistants in Herrin · All physician assistants in Illinois