Sayantani Sindher
Allergy & Immunology · Palo Alto, CANPI 1366739740
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (44.3%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. Genentech USA, Inc. accounts for 74.2% of it on its own, with 9 other manufacturers making up the rest.
Across 34 payments — averaging $915.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Genentech USA, Inc.$23K
- Kaleo, Inc.$4K
- Genentech, Inc.$2K
- Regeneron$575
- AstraZeneca$389
- Aquestive Therapeutics, Inc.$119
- plus $149 from 4 others
Across 153 payments — averaging $5491.22 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Regeneron$514K
- Aimmune Therapeutics, Inc.$297K
- Sanofi US Services Inc.$16K
- Novartis$13K
What the payments were for
- Consulting fees$13,61944%
- Speaking & faculty fees$13,80044%
- Travel & lodging$2,1187%
- Food & beverage$1,5835%
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 |
|---|---|---|
| Genentech USA, Inc. | 20 | $23,078 |
| Kaleo, Inc. | 3 | $4,343 |
| Genentech, Inc. | 4 | $2,466 |
| Regeneron | 1 | $575 |
| AstraZeneca | 1 | $389 |
| Aquestive Therapeutics, Inc. | 1 | $119 |
| Alk-abello, Inc | 1 | $55 |
| Greer Laboratories, Inc. | 1 | $53 |
| GSK | 1 | $22 |
| Kyowa Kirin, Inc. | 1 | $20 |
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
$31,119 in reported general payments places this provider in the 85th percentile of 426 allergy & immunology providers in California.
Other allergy & immunology in Palo Alto
- Rebecca ChinthrajehPalo Alto$53K
- Joann Blessing-MoorePalo Alto$38K
- Raffi TachdjianSanta Monica$3.7M
- Bob GengSan Diego$3.3M
- Vinay MehtaLaguna Niguel$1.3M
- Andrew WhiteSan Diego$752K
- Marc RiedlSan Diego$725K
- Katharine WoessnerSan Diego$581K
- Brian Modenala Jolla$453K
- Heena Shah PatelUpland$428K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.