Mark Demoss
Pediatrics · Greer, SCNPI 1538172960
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 171 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 19 manufacturers reported payments, led by Ironshore Pharmaceuticals Inc. at 26.1% of the total. Reporting peaked in 2021 at $625 and has fallen 87.8% since, to $76 in 2025. Among pediatrics clinicians in SC with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 171 payments — averaging $17.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ironshore Pharmaceuticals Inc.$777
- Tris Pharma Inc$439
- Corium, LLC$335
- GSK$317
- Supernus Pharmaceuticals, Inc.$274
- Takeda Pharmaceuticals U.S.A., Inc.$141
- plus $690 from 13 others
What the payments were for
- Food & beverage$2,973100%
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 |
|---|---|---|
| Ironshore Pharmaceuticals Inc. | 49 | $777 |
| Tris Pharma Inc | 23 | $439 |
| Corium, LLC | 20 | $335 |
| GSK | 15 | $317 |
| Supernus Pharmaceuticals, Inc. | 12 | $274 |
| Takeda Pharmaceuticals U.S.A., Inc. | 9 | $141 |
| Neos Therapeutics, LP | 8 | $136 |
| Cranial Technologies, Inc | 6 | $105 |
| Merck | 6 | $85 |
| Sanofi Pasteur Inc. | 5 | $71 |
| Genentech USA, Inc. | 4 | $59 |
| Adlon Therapeutics L.p. | 3 | $43 |
| Pfizer | 3 | $39 |
| Shire North American Group Inc | 2 | $38 |
| Collegium Pharmaceutical, Inc. | 2 | $37 |
| Eyevance Pharmaceuticals LLC | 1 | $23 |
| AstraZeneca | 1 | $20 |
| Sanofi-aventis U.S. LLC | 1 | $17 |
| Seqirus USA Inc | 1 | $16 |
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.
How this compares
$2,973 in reported general payments places this provider in the 95th percentile of 969 pediatrics providers in South Carolina.
Other pediatrics in Greer
- William JarvisHilton Head Island$78K
- Anthony PruittBlythewood$42K
- Stephen StriplingCharleston$31K
- Erin TomlinShaw Afb$12K
- Cara O NeillColumbia$12K
- Robert CliffordCharleston$8K
- Jonathan MasonGeorgetown$7K
- John CarrollColumbia$7K
- Laura AlbergColumbia$6K
- James McElligottCharleston$6K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.