David Guzman
Internal Medicine · Los Angeles, CANPI 1275521494
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $10,689 of the $14,343 with a category attached, or 74.5%. It is spread thinly across 12 manufacturers, the largest accounting for just 21.8%. Among internal medicine clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 93 payments — averaging $154.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$3K
- Alnylam Pharmaceuticals Inc.$3K
- Modernatx, Inc.$2K
- Astrazeneca UK Limited$2K
- Boehringer Ingelheim$2K
- Boehringer Ingelheim International GmbH$1K
- plus $2K from 6 others
Across 1,653 payments — averaging $2610.92 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.
- Modernatx, Inc.$2.1M
- Novo Nordisk AS$394K
- Sanofi Pasteur Inc.$394K
- Regeneron$308K
- AstraZeneca$262K
- Boehringer Ingelheim$215K
- plus $652K from 11 others
What the payments were for
- Travel & lodging$10,68975%
- Food & beverage$3,62225%
- Education$320%
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 |
|---|---|---|
| Amgen | 8 | $3,129 |
| Alnylam Pharmaceuticals Inc. | 16 | $2,630 |
| Modernatx, Inc. | 10 | $1,836 |
| Astrazeneca UK Limited | 11 | $1,816 |
| Boehringer Ingelheim | 12 | $1,653 |
| Boehringer Ingelheim International GmbH | 11 | $1,349 |
| Merck | 9 | $1,204 |
| Corcept Therapeutics | 7 | $304 |
| AstraZeneca | 2 | $271 |
| Novo Nordisk | 4 | $96 |
| Abbott | 2 | $36 |
| Sobi, Inc | 1 | $18 |
How this compares
$14,343 in reported general payments places this provider in the 95th percentile of 13,581 internal medicine providers in California.
Other internal medicine in Los Angeles
- William HardyLos Angeles$704K
- Soha DolatabadiLos Angeles$458K
- Matthew HerrmannLos Angeles$384K
- Koppany VisnyeiLos Angeles$287K
- Jaime BetancourtLos Angeles$286K
- William KingLos Angeles$227K
- Andrew ChengSouth San Francisco$55.1M
- Tung NgoNewport Beach$4.9M
- Christian EversullStanford$2.9M
- Christian SandrockSacramento$2.1M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.