Gregg Dickerson, MD
Radiation Oncology · Greenville, MSNPI 1699777854
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 20 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 17 manufacturers, the largest accounting for just 14.0% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $362, 6.9 times the $53 reported in 2019. That places this record below the midpoint for radiation oncology clinicians in MS, where the typical reported total is $476.
Across 20 payments — averaging $23.79 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$67
- Teleflex LLC$55
- Boston Scientific$53
- Novartis$48
- Myriad Genetic Laboratories, Inc.$26
- Karyopharm Therapeutics Inc.$24
- plus $204 from 11 others
What the payments were for
- Food & beverage$476100%
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 |
|---|---|---|
| Merck | 3 | $67 |
| Teleflex LLC | 1 | $55 |
| Boston Scientific | 1 | $53 |
| Novartis | 2 | $48 |
| Myriad Genetic Laboratories, Inc. | 1 | $26 |
| Karyopharm Therapeutics Inc. | 1 | $24 |
| Incyte Corporation | 1 | $22 |
| Genmab U.S., Inc. | 1 | $21 |
| Lilly USA, LLC | 1 | $21 |
| Pfizer | 1 | $20 |
| Astellas Pharma US Inc | 1 | $20 |
| EMD Serono, Inc. | 1 | $20 |
| AVEO Pharmaceuticals, Inc. | 1 | $18 |
| Regeneron Healthcare Solutions, Inc. | 1 | $18 |
| Johnson & Johnson | 1 | $16 |
| Novocure Inc. | 1 | $15 |
| Beone Medicines USA, Inc. | 1 | $14 |
How this compares
$476 in reported general payments places this provider in the 50th percentile of 36 radiation oncology providers in Mississippi.
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.
Other radiation oncology in Greenville
- Jeffrey TriplettGreenville$284
- Jimmy CaudellJackson$17K
- Elbert DuncanTupelo$6K
- Micah MonaghanCorinth$5K
- Srinivasan VijayakumarJackson$5K
- Teessa Perekattu KuruvillaJackson$3K
- John CantrellOxford$3K
- Caleb DulaneyMeridian$2K
- Sophy ManganaHattiesburg$2K
- Naim SalloumHattiesburg$2K
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.