Jonathan Tam
Allergy · Los Angeles, CANPI 1619133600
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (56.8%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. ARS Pharmaceuticals Operations, Inc. accounts for 67.1% of it on its own, with 10 other manufacturers making up the rest. 2025 is the largest year on record at $27,262, more than ten times the $1,669 reported in 2019. Among allergy clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 41 payments — averaging $798.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- ARS Pharmaceuticals Operations, Inc.$22K
- CSL Behring$9K
- Astrazeneca UK Limited$2K
- Genentech USA, Inc.$93
- Regeneron$84
- Dermavant Sciences, Inc.$67
- plus $204 from 5 others
Across 27 payments — averaging $6996.13 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.
- Astrazeneca UK Limited$95K
- Regeneron$84K
- Aimmune Therapeutics, Inc.$10K
What the payments were for
- Consulting fees$8,31125%
- Speaking & faculty fees$18,60057%
- Travel & lodging$4,30813%
- Food & beverage$1,5015%
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 |
|---|---|---|
| ARS Pharmaceuticals Operations, Inc. | 15 | $21,948 |
| CSL Behring | 7 | $8,671 |
| Astrazeneca UK Limited | 8 | $1,653 |
| Genentech USA, Inc. | 1 | $93 |
| Regeneron | 2 | $84 |
| Dermavant Sciences, Inc. | 2 | $67 |
| Grifols Shared Services North America, Inc. | 1 | $60 |
| Merz North America, Inc. | 1 | $41 |
| Sanofi | 2 | $39 |
| Novartis | 1 | $34 |
| GSK | 1 | $30 |
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
$32,720 in reported general payments places this provider in the 90th percentile of 117 allergy providers in California.
Other allergy in Los Angeles
- Ricardo TanLos Angeles$18K
- Maxine BaumLos Angeles$10K
- Robert EitchesLos Angeles$7K
- Marion JohnsonLos Angeles$4K
- Michael KaplanLos Angeles$2K
- Joshua JacobsWalnut Creek$1.5M
- Warner CarrLaguna Niguel$571K
- Bradley ChippsSacramento$571K
- Travis MillerRoseville$273K
- Robert ZeigerSan Diego$162K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.