Ryan S. Gilliand, PA-C
NPI 1548348980ActiveIndividual· Physician Assistant· Chattanooga, TN
Physician Assistant (PA-C) with Erlanger Health and 2 other groups, practicing in Chattanooga, Tennessee. 501 Medicare patients in 2024, $68,591 paid; all of their 310 Part D prescriptions were generic. Ferring Pharmaceuticals Inc. was the largest of 3 companies reporting payments in 2025, $112.01 in all, mostly food and beverage. Lists Erlanger Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1548348980 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Nov 2, 2006 |
| Last updated in NPPES | May 14, 2026 |
| Certified by provider | May 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1848 | TN |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 501 |
|---|---|
| Services billed | 7,701 across 26 procedure codes |
| Paid by Medicare | $68,591 |
Part D prescriptions in 2024
| Prescriptions (claims) | 310 · 314 30-day fills |
|---|---|
| Patients | 217 |
| Total drug cost | $2,127 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Erlanger HealthChattanooga, TN · 507 clinicians
- Chattanooga Hamilton County Hospital AuthorityChattanooga, TN · 146 clinicians
- Chattanooga Diagnostic Associates LLCChattanooga, TN · 27 clinicians
Hospital affiliations
- Erlanger Medical CenterChattanooga, TN
- Parkridge Medical CenterChattanooga, TN
Industry payments (Open Payments)
- 2025$112.01 · 6 payments from 3 companies
- 2024$124.75 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ferring Pharmaceuticals Inc. | $67.03 | 4 |
| Curonix LLC | $25.31 | 1 |
| Pacira Pharmaceuticals Incorporated | $19.67 | 1 |
What the 2025 payments were for
- Food and Beverage$112.01 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 150 physician assistants in Chattanooga · All physician assistants in Tennessee