Christopher Landon
Pediatric Allergy/Immunology · Ventura, CANPI 1427118868
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (47.2%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. 24 manufacturers reported payments, led by GSK at 48.0% of the total. Reporting peaked in 2019 at $33,054 and has fallen 83.7% since, to $5,390 in 2025. Among pediatric allergy/immunology 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 234 payments — averaging $258.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$29K
- Regeneron Healthcare Solutions, Inc.$21K
- Vertex$3K
- Genentech USA, Inc.$3K
- AbbVie$1K
- Hill-rom Company, Inc$1K
- plus $2K from 18 others
Across 101 payments — averaging $2370.82 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.
- AbbVie$194K
- Insmed, Inc.$32K
- Boehringer Ingelheim$7K
- Boehringer Ingelheim International GmbH$5K
- Merck$1K
What the payments were for
- Consulting fees$19,58532%
- Speaking & faculty fees$28,53547%
- Travel & lodging$5,74410%
- Food & beverage$6,33810%
- Education$2290%
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 |
|---|---|---|
| GSK | 40 | $28,982 |
| Regeneron Healthcare Solutions, Inc. | 58 | $21,436 |
| Vertex | 14 | $3,092 |
| Genentech USA, Inc. | 9 | $2,663 |
| AbbVie(2 entities) | 57 | $1,082 |
| Hill-rom Company, Inc | 1 | $1,000 |
| Viiv Healthcare Company | 1 | $600 |
| AstraZeneca | 17 | $400 |
| Baxter Healthcare | 6 | $245 |
| Advanced Respiratory, Inc | 9 | $189 |
| Boehringer Ingelheim | 2 | $127 |
| Mylan Specialty L.p. | 1 | $112 |
| Sanofi-aventis U.S. LLC | 1 | $97 |
| Chiesi USA, Inc. | 5 | $91 |
| Insmed, Inc. | 2 | $85 |
| Sanofi | 2 | $49 |
| Paratek Pharmaceuticals, Inc. | 1 | $33 |
| Ventec Life Systems, Inc. | 1 | $30 |
| Sobi, Inc | 1 | $28 |
| Verrica Pharmaceuticals Inc. | 1 | $23 |
| Alcresta Therapeutics, Inc. | 1 | $20 |
| Electromed, Inc. | 1 | $19 |
| Sarepta Therapeutics, Inc. | 2 | $18 |
| Neurelis, Inc. | 1 | $13 |
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.
- DUPIXENT$19,960
- TRELEGY ELLIPTA$9,202
- NUCALA$8,482
- XOLAIR$2,486
- ANORO$1,017
- Volara System$1,000
- Creon$250
- Hillrom - Volara System$155
- SYMBICORT$132
- ALYFTREK$125
- Yupelri$112
- ANORO ELLIPTA$112
How this compares
$60,431 in reported general payments places this provider in the 90th percentile of 48 pediatric allergy/immunology providers in California.
See all pediatric allergy/immunology providers in California →
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| LevocarnitineLevocarnitine (With Sugar) | 12 | $1,195 |
Paid to pharmacies, not to this prescriber.
Other pediatric allergy/immunology in Ventura
- Manish ButteLos Angeles$357K
- Barbara AriueSan Bernardino$112K
- Peck OngLos Angeles$83K
- Brian GreenbergTarzana$45K
- Alejandro Dorenbaum-KracerPalo Alto$42K
- Maria Garcia-LloretLos Angeles$39K
- Talal ChatilaLos Angeles$30K
- Morna DorseySan Francisco$29K
- Ewald StiehmLos Angeles$24K
- Matthew KanSan Francisco$16K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.