Ashwin Shankar
Allergy & Immunology · Dallas, TXNPI 1467010942
Payments from drug & device makers
Across 151 payments — averaging $42.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi$2K
- AstraZeneca$1K
- Regeneron Healthcare Solutions, Inc.$609
- Novartis$518
- Amgen$356
- CSL Behring$240
- plus $1K from 18 others
What the payments were for
- Consulting fees$1,71927%
- Food & beverage$4,46770%
- Education$1973%
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 |
|---|---|---|
| Sanofi | 24 | $2,433 |
| AstraZeneca | 27 | $1,070 |
| Regeneron Healthcare Solutions, Inc. | 19 | $609 |
| Novartis | 16 | $518 |
| Amgen(2 entities) | 17 | $356 |
| CSL Behring | 11 | $240 |
| Sanofi-aventis U.S. LLC | 2 | $151 |
| GSK | 3 | $131 |
| Biocryst US Sales Co., LLC | 3 | $115 |
| Blueprint Medicines Corporation | 1 | $112 |
| Genentech USA, Inc. | 1 | $102 |
| ARS Pharmaceuticals Operations, Inc. | 4 | $92 |
| AbbVie | 4 | $86 |
| Optinose US, Inc. | 3 | $72 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $68 |
| Octapharma USA, Inc. | 2 | $39 |
| Pharming Healthcare, Inc. | 2 | $36 |
| Kaleo, Inc. | 2 | $34 |
| Teva Pharmaceuticals USA, Inc. | 2 | $32 |
| Hikma Pharmaceuticals USA | 1 | $21 |
| Galderma Laboratories, L.p. | 1 | $18 |
| Merck | 1 | $16 |
| Grifols USA, LLC | 1 | $16 |
| Organon | 1 | $15 |
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.
How this compares
$6,383 in reported general payments places this provider in the 50th percentile of 336 allergy & immunology providers in Texas.
Other allergy & immunology in Dallas
- Barbara BaxterDallas$2.5M
- Richard WassermanDallas$1.9M
- Elliot GinchanskyDallas$477K
- Matthew FeldmanDallas$410K
- Lara GrossDallas$171K
- Anil NandaDallas$86K
- Sonak DaulatDallas$72K
- Joseph WestDallas$39K
- William HowlandAustin$3.6M
- Russell PerryBeaumont$3.2M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.