Joseph Prohaska, D.O.
NPI 1790158012ActiveIndividual· Dermatology, MOHS-Micrographic Surgery· Morristown, TN
Dermatology, MOHS-Micrographic Surgery (D.O.) with Healthstar Physicians PC, practicing in Morristown, Tennessee. 434 Medicare patients in 2024, $326,141 paid; nearly all of their 1,398 Part D prescriptions were generic (98%). Janssen Biotech, Inc. was the largest of 19 companies reporting payments in 2025, $1,923 in all, mostly food and beverage.
Overview
| NPI | 1790158012 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Nov 9, 2015 |
| Last updated in NPPES | Dec 10, 2025 |
| Certified by provider | Dec 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, MOHS-Micrographic Surgery Primary | 207ND0101X | MD3678 | TN |
| Student in an Organized Health Care Education/Training Program | 390200000X | 2016-01634 | NC |
| Dermatology | 207N00000X | 2016-01634 | NC |
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 - Dermatology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 434 |
|---|---|
| Services billed | 2,667 across 93 procedure codes |
| Paid by Medicare | $326,141 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,398 · 1,452 30-day fills |
|---|---|
| Patients | 608 |
| Total drug cost | $284,251 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Dermatology |
Medical group
- Healthstar Physicians PCNewport, TN · 88 clinicians
Industry payments (Open Payments)
- 2025$1,923 · 87 payments from 19 companies
- 2024$2,286 · 91 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $376.53 | 10 |
| Lilly USA, LLC | $239.85 | 9 |
| Novartis Pharmaceuticals Corporation | $234.53 | 10 |
| Abbvie Inc. | $193.36 | 16 |
| Ucb, Inc. | $167.10 | 8 |
What the 2025 payments were for
- Food and Beverage$1,907 · 85 payments
- Education$16.42 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records