Ryan Volking, PA-C
NPI 1538671748ActiveIndividual· Physician Assistant· Ooltewah, TN
Physician Assistant (PA-C) in Ooltewah, Tennessee, trained at Lincoln Memorial University Medical Department (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $435,789 for 733 claims, against $65,694 paid for services in 2024. Janssen Biotech, Inc. was the largest of 20 companies reporting payments in 2025, $3,827 in all, mostly food and beverage.
Overview
| NPI | 1538671748 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 27, 2017 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Apr 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 364 |
|---|---|
| Services billed | 2,053 across 51 procedure codes |
| Paid by Medicare | $65,694 |
Part D prescriptions in 2024
| Prescriptions (claims) | 733 · 798 30-day fills |
|---|---|
| Patients | 308 |
| Total drug cost | $435,789 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Lincoln Memorial University Medical Department |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Physician Assistant |
Medical group
- Skin Cancer and Cosmetic Dermatology Center PCHixson, TN · 29 clinicians
Industry payments (Open Payments)
- 2025$3,827 · 107 payments from 20 companies
- 2024$2,863 · 97 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $1,392 | 9 |
| Regeneron Healthcare Solutions, Inc. | $425.99 | 8 |
| Genzyme Corporation | $355.30 | 4 |
| Galderma Laboratories, L.P. | $281.38 | 13 |
| E.R. Squibb & Sons, L.L.C. | $220.36 | 3 |
What the 2025 payments were for
- Food and Beverage$2,607 · 105 payments
- Consulting Fee$1,125 · 1 payment
- Education$94.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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