Alton Walters
Internal Medicine · Las Vegas, NVNPI 1902819691
Payments from drug & device makers
Across 562 payments — averaging $15,857 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$5M
- Modernatx, Inc.$1.6M
- Amgen$640K
- AstraZeneca$511K
- GSK$307K
- Seqirus USA Inc$258K
- plus $598K from 13 others
What the payments were for
- Travel & lodging$8425%
- Food & beverage$24975%
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 |
|---|---|---|
| Pfizer | 195 | $4,965,327 |
| Modernatx, Inc. | 118 | $1,633,650 |
| Amgen | 15 | $639,904 |
| AstraZeneca | 14 | $510,647 |
| GSK | 10 | $306,537 |
| Seqirus USA Inc | 92 | $257,674 |
| Sumitomo Pharma America, Inc. | 18 | $238,341 |
| Chiesi USA, Inc. | 64 | $170,072 |
| Teva Pharmaceuticals USA, Inc. | 1 | $54,500 |
| Currax Pharmaceuticals LLC | 10 | $48,383 |
| AbbVie | 12 | $36,551 |
| American Regent | 1 | $35,245 |
| E.r. Squibb & Sons, L.L.C. | 2 | $7,793 |
| Bayer | 1 | $7,000 |
| Novo Nordisk | 4 | $92 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $55 |
| Intra-sana Laboratories | 2 | $45 |
| Lilly USA, LLC | 1 | $22 |
| Dexcom, Inc. | 1 | $16 |
How this compares
$8,911,853 in reported general payments places this provider in the 95th percentile of 1,071 internal medicine providers in Nevada.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 19 | $713 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 29 | $544 |
| Oxycodone Hcl | 19 | $392 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 13 | $348 |
| Gabapentin | 25 | $316 |
| Ezetimibe | 11 | $67 |
| Zolpidem Tartrate | 11 | $67 |
| Amlodipine Besylate | 16 | $48 |
| Alprazolam | 21 | $46 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Las Vegas
- Darin BrimhallLas Vegas$39.7M
- Michael JacobsLas Vegas$8.1M
- Nirupa PaulrajLas Vegas$5.8M
- Atoya AdamsLas Vegas$5.4M
- Roger EstevezLas Vegas$3.7M
- Syed PervaizLas Vegas$3.1M
- Vrijendra HoonLas Vegas$1.8M
- Robby Ann QuintosLas Vegas$1.4M
- Kent SwaineLas Vegas$1.2M
- Vishweshwar RangaLas Vegas$1.2M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.