Gregory Wittenberg
Dermatology · Rapid City, SDNPI 1760418420
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 47 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 15 manufacturers reported payments, led by AbbVie at 49.1% of the total. That places this record below the midpoint for dermatology clinicians in SD, where the typical reported total is $1,250.
Across 47 payments — averaging $20.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$466
- Novartis$74
- Regeneron Healthcare Solutions, Inc.$56
- E.r. Squibb & Sons, L.L.C.$49
- Johnson & Johnson$47
- UCB, Inc.$44
- plus $212 from 9 others
What the payments were for
- Food & beverage$948100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| AbbVie(2 entities) | 21 | $466 |
| Novartis | 3 | $74 |
| Regeneron Healthcare Solutions, Inc. | 3 | $56 |
| E.r. Squibb & Sons, L.L.C. | 3 | $49 |
| Johnson & Johnson | 3 | $47 |
| UCB, Inc. | 2 | $44 |
| Lilly USA, LLC | 3 | $44 |
| Galderma Laboratories, L.p. | 2 | $35 |
| Amgen | 1 | $25 |
| Boehringer Ingelheim | 1 | $24 |
| Sanofi | 1 | $20 |
| Organogenesis Inc. | 1 | $19 |
| Kyowa Kirin, Inc. | 1 | $18 |
| Smith+Nephew | 1 | $15 |
| Merck | 1 | $12 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- BOTOX$145
How this compares
$948 in reported general payments places this provider in the 45th percentile of 44 dermatology providers in South Dakota.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Fluorouracil | 27 | $2,481 |
| Clobetasol Propionate | 25 | $835 |
| Cephalexin | 164 | $647 |
| Triamcinolone Acetonide | 68 | $605 |
| Doxycycline Monohydrate | 30 | $383 |
| Ketoconazole | 19 | $209 |
| Clindamycin Hcl | 43 | $205 |
| Mupirocin | 11 | $102 |
| Hydrocortisone | 22 | $61 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Rapid City
- Lycia ThornburgRapid City$100K
- Tamara PolingRapid City$7K
- Maren GaulRapid City$4K
- Jason NobleRapid City$4K
- Linda FrommRapid City$3K
- Siri Knutsen LarsonRapid City$3K
- Melody EideRapid City$2K
- Kirstin HockhausenRapid City$2K
- Robert SageRapid City$1K
- Briana HillRapid City$727
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.