Yvonne Davis, MD
Internal Medicine · Mount Pleasant, SCNPI 1639107162
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $500 of the $582 with a category attached, or 86.0%. Novartis accounts for 86.0% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2021 at $500 and has fallen 91.6% since, to $42 in 2023.
Across 4 payments — averaging $145.43 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$500
- Acadia Pharmaceuticals Inc$40
- Mylan Specialty L.p.$26
- Neurocrine Biosciences, Inc.$16
Across 150 payments — averaging $16,177 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Modernatx, Inc.$1.1M
- Sanofi Pasteur Inc.$980K
- GSK$200K
- Ferring International Pharmascience Center US$63K
- Eli Lilly$30K
- Ferring Pharmaceuticals AS$25K
- plus $8K from 1 others
What the payments were for
- Consulting fees$50086%
- Food & beverage$8214%
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 |
|---|---|---|
| Novartis | 1 | $500 |
| Acadia Pharmaceuticals Inc | 1 | $40 |
| Mylan Specialty L.p. | 1 | $26 |
| Neurocrine Biosciences, 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.
- GILENYA$500
How this compares
$582 in reported general payments places this provider in the 60th percentile of 1,498 internal medicine providers in South Carolina.
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 |
|---|---|---|
| EliquisApixaban | 867 | $158,173 |
| JardianceEmpagliflozin | 170 | $28,502 |
| MyrbetriqMirabegron | 226 | $26,728 |
| TrulicityDulaglutide | 26 | $26,073 |
| EntrestoSacubitril/Valsartan | 82 | $19,610 |
| RytaryCarbidopa/Levodopa | 81 | $19,141 |
| LinzessLinaclotide | 31 | $18,250 |
| JanuviaSitagliptin Phosphate | 99 | $17,902 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 27 | $17,245 |
| XareltoRivaroxaban | 103 | $17,008 |
| FarxigaDapagliflozin Propanediol | 77 | $16,312 |
| CreonLipase/Protease/Amylase | 35 | $12,295 |
| Atorvastatin Calcium | 1,790 | $9,941 |
| Spiriva RespimatTiotropium Bromide | 17 | $9,657 |
| Pantoprazole Sodium | 762 | $9,252 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| NovartisEntresto | $500 | $19,61082 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 60th percentile of 1,498 internal medicine providers in South Carolina.
Other internal medicine in Mount Pleasant
- Jerry BackNorth Charleston$322K
- Jan BasileCharleston$278K
- Mark PurcellGreenville$165K
- John CleekCharleston$136K
- William BunnHilton Head Island$125K
- Zion LammGreenville$118K
- Bruce GrayGreenville$111K
- Leonard AlsfeldCharleston$91K
- Edward Botse-BaidooMyrtle Beach$90K
- Lisa DarbyGreenville$43K
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.