Gregory Wittenberg
NPI 1760418420ActiveIndividual· Dermatology· Rapid City, SD
Dermatology in Rapid City, South Dakota, trained at Sanford School of Medicine of University of South Dakota (class of 1994). 778 Medicare patients in 2024, $754,717 paid; nearly all of their 519 Part D prescriptions were generic (99%). Regeneron Healthcare Solutions, Inc. was the largest of 9 companies reporting payments in 2025, $198.50 in all, mostly food and beverage.
Overview
| NPI | 1760418420 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 24, 2006 |
| Last updated in NPPES | Nov 5, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 4524 | SD |
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 - Dermatology (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 778 |
|---|---|
| Services billed | 5,036 across 139 procedure codes |
| Paid by Medicare | $754,717 |
Part D prescriptions in 2024
| Prescriptions (claims) | 519 · 533 30-day fills |
|---|---|
| Patients | 310 |
| Total drug cost | $7,435 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Sanford School of Medicine of University of South Dakota |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Dermatology |
Medical group
- Black Hills Surgical Hospital LLCSpearfish, SD · 174 clinicians
Hospital affiliation
- Monument Health Rapid City HospitalRapid City, SD
Industry payments (Open Payments)
- 2025$198.50 · 9 payments from 9 companies
- 2024$35.84 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $30.94 | 1 |
| Amgen Inc. | $25.49 | 1 |
| Novartis Pharmaceuticals Corporation | $25.00 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $24.06 | 1 |
| Ucb, Inc. | $23.21 | 1 |
What the 2025 payments were for
- Food and Beverage$198.50 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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