Vivian Chou, MD
Allergy & Immunology · Evanston, ILNPI 1457573420
Payments from drug & device makers
Across 501 payments — averaging $20.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$2K
- Sanofi$1K
- GSK$958
- Regeneron Healthcare Solutions, Inc.$761
- CSL Behring$584
- Pfizer$548
- plus $4K from 32 others
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 | 93 | $2,015 |
| Sanofi | 50 | $1,154 |
| GSK | 58 | $958 |
| Regeneron Healthcare Solutions, Inc. | 31 | $761 |
| CSL Behring | 27 | $584 |
| Pfizer | 25 | $548 |
| Covis Pharma GmbH | 20 | $390 |
| Biocryst US Sales Co., LLC | 16 | $348 |
| Alk-abello, Inc | 15 | $305 |
| Genentech USA, Inc. | 14 | $289 |
| Kaleo, Inc. | 15 | $255 |
| Optinose US, Inc. | 15 | $226 |
| Takeda Pharmaceuticals U.S.A., Inc. | 9 | $223 |
| Hospira, Inc. | 10 | $211 |
| Pharming Healthcare, Inc. | 10 | $202 |
| Aimmune Therapeutics, Inc. | 5 | $173 |
| Amgen | 11 | $171 |
| ARS Pharmaceuticals Operations, Inc. | 7 | $156 |
| Hikma Pharmaceuticals USA | 8 | $142 |
| LEO Pharma Inc. | 6 | $133 |
| Octapharma USA, Inc. | 2 | $130 |
| Teva Pharmaceuticals USA, Inc. | 8 | $127 |
| Novartis | 7 | $117 |
| Genentech, Inc. | 2 | $94 |
| ADMA Biomanufacturing LLC | 6 | $88 |
| Phadia US Inc. | 5 | $87 |
| Shire North American Group Inc | 4 | $81 |
| Boehringer Ingelheim | 4 | $81 |
| Grifols USA, LLC | 2 | $55 |
| Bio Products Laboratory USA, Inc. | 4 | $52 |
| Kedrion Biopharma, Inc. | 3 | $47 |
| Galderma Laboratories, L.p. | 2 | $39 |
| Tersera Therapeutics LLC | 1 | $25 |
| Greer Laboratories, Inc. | 2 | $24 |
| Philips North America LLC | 1 | $21 |
| Cycle Pharmaceuticals Inc | 1 | $18 |
| Nestle Healthcare Nutrition Inc. | 1 | $14 |
| Blueprint Medicines Corporation | 1 | $14 |
How this compares
$10,357 in reported general payments places this provider in the 70th percentile of 161 allergy & immunology providers in Illinois.
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.
Other allergy & immunology in Evanston
- Amishi MurthyEvanston$9K
- Dareen SiriNormal$5.9M
- Giselle MosnaimChicago$2.2M
- Anju PetersChicago$2.1M
- Priya BansalSaint Charles$1.3M
- Rachna ShahMelrose Park$1M
- Melanie MakhijaChicago$402K
- Elizabeth LippnerChicago$329K
- Patrick WinShiloh$314K
- Christina CiaccioChicago$310K
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.