David Willingham, MD
Adult Medicine · Odessa, TXNPI 1467441642
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 274 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 27 manufacturers, the largest accounting for just 21.0% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $1,300 and has fallen 74.5% since, to $331 in 2025.
Across 274 payments — averaging $17.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$1K
- Novo Nordisk$887
- Lilly USA, LLC$396
- AbbVie$350
- Amarin Pharma, Inc.$315
- Amgen$284
- plus $2K from 21 others
What the payments were for
- Food & beverage$4,888100%
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 | 61 | $1,025 |
| Novo Nordisk | 55 | $887 |
| Lilly USA, LLC | 23 | $396 |
| AbbVie(2 entities) | 16 | $350 |
| Amarin Pharma, Inc. | 18 | $315 |
| Amgen | 12 | $284 |
| Boehringer Ingelheim | 11 | $229 |
| Astellas Pharma US Inc | 7 | $171 |
| GSK | 11 | $169 |
| Abbott | 6 | $149 |
| Pfizer | 8 | $138 |
| Merck | 9 | $123 |
| Sanofi-aventis U.S. LLC | 7 | $107 |
| Johnson & Johnson | 4 | $93 |
| Eisai Inc. | 4 | $90 |
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $80 |
| Otsuka America Pharmaceutical, Inc. | 3 | $67 |
| Biohaven Pharmaceutical Holding Company Ltd. | 3 | $52 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 2 | $29 |
| Biohaven Pharmaceuticals, Inc. | 2 | $24 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $23 |
| Exact Sciences | 1 | $17 |
| Axsome Therapeutics, Inc. | 1 | $15 |
| Zyla Life Sciences, Inc. | 1 | $15 |
| Tactile Systems Technology Inc | 1 | $14 |
| International Rehabilitative Sciences, Inc | 1 | $14 |
| Arbor Pharmaceuticals, Inc. | 1 | $12 |
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.
- Ozempic$124
How this compares
$4,888 in reported general payments places this provider in the 85th percentile of 98 adult medicine providers in Texas.
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 |
|---|---|---|
| Lisinopril | 47 | $376 |
| Levothyroxine Sodium | 24 | $332 |
| Metformin Hcl ErMetformin Hcl | 17 | $319 |
| Amlodipine Besylate | 32 | $294 |
| Pantoprazole Sodium | 11 | $219 |
| Atorvastatin Calcium | 45 | $205 |
| Tamsulosin Hcl | 22 | $198 |
| Escitalopram Oxalate | 13 | $135 |
| Furosemide | 22 | $109 |
| Paroxetine Hcl | 14 | $75 |
| Hydrochlorothiazide | 22 | $69 |
| Prednisone | 19 | $60 |
| Citalopram HbrCitalopram Hydrobromide | 15 | $51 |
| Meloxicam | 16 | $51 |
| Trazodone Hcl | 12 | $46 |
Paid to pharmacies, not to this prescriber.
Other adult medicine in Odessa
- Vasantha AgusalaOdessa$2K
- Deborah HornBellaire$723K
- Thomas MartensPflugerville$87K
- Sakuntalai SrinanthakumarBeaumont$48K
- Francisco Vera AdamesSpring$11K
- Latisha RoweHouston$11K
- Hong XiaoCarrollton$10K
- Mark NovasSheppard Afb$9K
- Daisy ArceWeslaco$9K
- Jeffory ThomasTexarkana$8K
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.