Alfred Tan
Family Medicine · San Ramon, CANPI 1962465955
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $1,213 of the $1,524 with a category attached, or 79.6%. Every reported general payment came from a single manufacturer, Modernatx, Inc..
Across 7 payments — averaging $217.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Modernatx, Inc.$2K
Across 2,452 payments — averaging $1914.65 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.
- Pfizer$1.6M
- Modernatx, Inc.$1.4M
- AbbVie$708K
- Amgen$408K
- Seqirus USA Inc$216K
- Teva Pharmaceuticals USA, Inc.$114K
- plus $154K from 5 others
What the payments were for
- Travel & lodging$1,21380%
- Food & beverage$31220%
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 |
|---|---|---|
| Modernatx, Inc. | 7 | $1,524 |
How this compares
$1,524 in reported general payments places this provider in the 80th percentile of 10,533 family medicine providers in California.
Other family medicine in San Ramon
- Sherly SoleimanEncino$1.2M
- Pamela KushnerLos Angeles$1.2M
- Sujata NarayanStanford$1.2M
- Jeffrey UngerChino$906K
- Alexander RivkinLos Angeles$866K
- Scott HowellLos Angeles$793K
- Derrick ButlerLos Angeles$692K
- Sandra CalmanMontara$589K
- Anthony JonesOakland$377K
- Amira AyadBakersfield$360K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.