Vivian Mandas, PA
NPI 1508620303ActiveIndividual· Physician Assistant· Oak Ridge, TN
Physician Assistant (PA) with East Tennessee Ear, Nose and Throat Specialists, PC, practicing in Oak Ridge, Tennessee. 155 Medicare patients in 2024, $14,192 paid; nearly all of their 275 Part D prescriptions were generic (91%). Glaxosmithkline, LLC. was the largest of 9 companies reporting payments in 2025, $618.10 in all, mostly food and beverage. Lists Methodist Medical Center of Oak Ridge and 1 other hospital as hospital affiliations.
Overview
| NPI | 1508620303 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Feb 12, 2024 |
| Last updated in NPPES | Feb 21, 2024 |
| Certified by provider | Feb 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | TN |
| Physician Assistant, Surgical | 363AS0400X | — | 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 | 155 |
|---|---|
| Services billed | 511 across 15 procedure codes |
| Paid by Medicare | $14,192 |
Part D prescriptions in 2024
| Prescriptions (claims) | 275 · 332 30-day fills |
|---|---|
| Patients | 151 |
| Total drug cost | $12,795 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- East Tennessee Ear, Nose and Throat Specialists, PCHarriman, TN · 8 clinicians
Hospital affiliations
- Methodist Medical Center of Oak RidgeOak Ridge, TN
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$618.10 · 29 payments from 9 companies
- 2024$224.40 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $224.41 | 11 |
| Regeneron Healthcare Solutions, Inc. | $117.64 | 5 |
| Genzyme Corporation | $91.57 | 5 |
| Optinose US, Inc. | $67.60 | 3 |
| Ars Pharmaceuticals Operations, Inc. | $29.78 | 1 |
What the 2025 payments were for
- Food and Beverage$618.10 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 39 physician assistants in Oak Ridge · All physician assistants in Tennessee