Mark Chastain, MD
Dermatology · Marietta, GANPI 1790756138
Payments from drug & device makers
Across 133 payments — averaging $56.54 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$6K
- Sanofi$264
- Regeneron Healthcare Solutions, Inc.$150
- Pfizer$129
- UCB, Inc.$117
- Novartis$87
- plus $553 from 15 others
What the payments were for
- Speaking & faculty fees$5,42872%
- Food & beverage$1,99327%
- Education$981%
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) | 80 | $6,220 |
| Sanofi | 8 | $264 |
| Regeneron Healthcare Solutions, Inc. | 3 | $150 |
| Pfizer | 6 | $129 |
| UCB, Inc. | 6 | $117 |
| Novartis | 4 | $87 |
| Merz North America, Inc. | 1 | $72 |
| Sun Pharmaceutical Industries Inc. | 3 | $67 |
| Arcutis Biotherapeutics, Inc. | 3 | $60 |
| Boehringer Ingelheim | 3 | $54 |
| Incyte Corporation | 2 | $42 |
| Dermavant Sciences, Inc. | 2 | $41 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 2 | $38 |
| Galderma Laboratories, L.p. | 2 | $36 |
| Mayne Pharma Commercial LLC | 2 | $35 |
| LEO Pharma Inc. | 1 | $27 |
| Johnson & Johnson | 1 | $19 |
| Dermira, Inc. | 1 | $19 |
| DUSA Pharmaceuticals, Inc. | 1 | $16 |
| Lilly USA, LLC | 1 | $15 |
| Genentech USA, Inc. | 1 | $13 |
How this compares
$7,519 in reported general payments places this provider in the 65th percentile of 345 dermatology providers in Georgia.
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 |
|---|---|---|
| Cephalexin | 1,484 | $5,464 |
| Doxycycline Hyclate | 247 | $2,665 |
| Fluorouracil | 26 | $1,680 |
| Tramadol Hcl | 947 | $1,233 |
| Clobetasol Propionate | 11 | $513 |
| Gentamicin Sulfate | 15 | $503 |
| Imiquimod | 19 | $489 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 122 | $464 |
| ValacyclovirValacyclovir Hcl | 54 | $457 |
| Mupirocin | 77 | $448 |
| Ketoconazole | 24 | $364 |
| Triamcinolone Acetonide | 16 | $128 |
| Fluconazole | 21 | $86 |
| Azithromycin | 19 | $76 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 23 | $63 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Marietta
- Tiffany Clay-RamseyMarietta$207K
- Anita ShettyMarietta$123K
- Onaopemipo OfodileMarietta$39K
- Edward ChenMarietta$20K
- David CohenMacon$5.5M
- Jamie WeismanAtlanta$4.9M
- Tiffani HamiltonAlpharetta$3.3M
- Firas HougeirDouglasville$3.3M
- Jonathan WeissSnellville$2.4M
- Mark KnautzPowder Springs$1.7M
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.