David Hammett
Neurology · Columbia, SCNPI 1154412229
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $70,470 of the $86,084 with a category attached, or 81.9%. AbbVie accounts for 63.9% of it on its own, with 34 other manufacturers making up the rest. Reporting peaked in 2021 at $45,955 and has fallen 98.2% since, to $829 in 2023. Among neurology 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 733 payments — averaging $117.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$55K
- Teva Pharmaceuticals USA, Inc.$18K
- Biohaven Pharmaceuticals, Inc.$9K
- Amgen$508
- Supernus Pharmaceuticals, Inc.$446
- Lilly USA, LLC$420
- plus $3K from 29 others
What the payments were for
- Consulting fees$3,6504%
- Speaking & faculty fees$70,47082%
- Travel & lodging$1,1761%
- Food & beverage$10,77113%
- Education$160%
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.
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.
- UBRELVY$52,761
- AJOVY$15,608
- NURTEC ODT$8,232
- AIMOVIG$122
How this compares
$86,084 in reported general payments places this provider in the 95th percentile of 270 neurology providers in South Carolina.
Other neurology in Columbia
- Pradeep BolluColumbia$52K
- Eleanya Ogburu-OgbonnayaColumbia$36K
- Mark FriedmanColumbia$10K
- Nicole HoganColumbia$10K
- John BakerSumter$779K
- Robert CarlileSummerville$428K
- Mary HughesGreenville$404K
- Jose CardenasAiken$216K
- Fredy RevillaGreenville$208K
- Robert AdamsCharleston$204K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.