Marc Davis, DO
Family Medicine · Ada, OKNPI 1194763060
Payments from drug & device makers
Across 320 payments — averaging $15.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$1K
- Novo Nordisk$547
- Supernus Pharmaceuticals, Inc.$404
- Lilly USA, LLC$367
- GSK$362
- Amgen$269
- plus $2K from 22 others
What the payments were for
- Food & beverage$4,64496%
- Education$1894%
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 |
|---|---|---|
| AstraZeneca | 67 | $1,120 |
| Novo Nordisk | 38 | $547 |
| Supernus Pharmaceuticals, Inc. | 28 | $404 |
| Lilly USA, LLC | 29 | $367 |
| GSK | 37 | $362 |
| Amgen | 18 | $269 |
| Mylan Specialty L.p. | 12 | $264 |
| Astellas Pharma US Inc | 5 | $235 |
| Pfizer | 22 | $234 |
| Takeda Pharmaceuticals U.S.A., Inc. | 13 | $207 |
| AbbVie(2 entities) | 9 | $130 |
| Sunovion Pharmaceuticals Inc. | 7 | $112 |
| Sanofi-aventis U.S. LLC | 6 | $111 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 5 | $72 |
| Boehringer Ingelheim | 4 | $66 |
| Exact Sciences | 3 | $49 |
| Eisai Inc. | 3 | $38 |
| Novartis | 2 | $35 |
| Teva Pharmaceuticals USA, Inc. | 2 | $32 |
| Dexcom, Inc. | 2 | $29 |
| Amarin Pharma, Inc. | 1 | $24 |
| Ultragenyx Pharmaceutical Inc. | 1 | $24 |
| Esperion Therapeutics, Inc. | 1 | $23 |
| Ironwood Pharmaceuticals, Inc | 1 | $19 |
| Bioventus LLC | 1 | $17 |
| Bayer | 1 | $16 |
| Vapotherm Inc | 1 | $15 |
| Millicent US Inc | 1 | $13 |
How this compares
$4,833 in reported general payments places this provider in the 85th percentile of 1,730 family medicine providers in Oklahoma.
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 |
|---|---|---|
| OzempicSemaglutide | 54 | $84,200 |
| MounjaroTirzepatide | 52 | $75,024 |
| Xigduo XrDapaglifloz Propaned/Metformin | 87 | $67,607 |
| EliquisApixaban | 85 | $59,900 |
| TrulicityDulaglutide | 42 | $57,504 |
| RybelsusSemaglutide | 16 | $39,024 |
| FarxigaDapagliflozin Propanediol | 36 | $36,167 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 42 | $34,074 |
| Tresiba Flextouch U-200Insulin Degludec | 21 | $24,760 |
| LinzessLinaclotide | 22 | $20,053 |
| Janumet XrSitagliptin Phos/Metformin Hcl | 18 | $15,799 |
| MyrbetriqMirabegron | 13 | $13,793 |
| XareltoRivaroxaban | 14 | $12,983 |
| Synjardy XrEmpagliflozin/Metformin Hcl | 15 | $10,138 |
| Toujeo SolostarInsulin Glargine,hum.Rec.Anlog | 14 | $5,314 |
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 |
|---|---|---|
| Lilly USA, LLCMounjaro, Trulicity | $367 | $132,52994 claims |
| Novo NordiskOzempic, Rybelsus | $547 | $123,22470 claims |
| PfizerEliquis | $234 | $59,90085 claims |
| AstraZenecaFarxiga | $1,120 | $36,16736 claims |
| GSKTrelegy Ellipta | $362 | $34,07442 claims |
| AbbVieLinzess | $130 | $20,05322 claims |
| Astellas Pharma US IncMyrbetriq | $235 | $13,79313 claims |
| Boehringer IngelheimSynjardy Xr | $66 | $10,13815 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 85th percentile of 1,730 family medicine providers in Oklahoma.
Other family medicine in Ada
- Curtis HarrisAda$125K
- Carl GriffinOklahoma City$28.2M
- Lisa ConneryNorman$15.6M
- Kyle RicknerYukon$14.7M
- Robert LockwoodYukon$8.6M
- Steven CoxNorman$6.9M
- Alexander FrankOklahoma City$3.1M
- Rachel AndersonNorman$2.8M
- Robert WestcottLindsay$1.6M
- Charles LunnOklahoma City$1.4M
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.