Celeste Chang
Nephrology · San Francisco, CANPI 1245633825
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 97.5% of the total across 211 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 24 manufacturers, the largest accounting for just 16.8% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2022 at $1,554 and has fallen 98.8% since, to $19 in 2024.
Across 211 payments — averaging $23.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$844
- Otsuka America Pharmaceutical, Inc.$656
- Esperion Therapeutics, Inc.$557
- Fresenius USA Marketing, Inc.$432
- GSK$425
- Vifor Pharma, Inc.$376
- plus $2K from 18 others
What the payments were for
- Food & beverage$4,90998%
- Education$1252%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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.
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
$5,034 in reported general payments places this provider in the 75th percentile of 1,341 nephrology providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ProsolParenteral Amino Acid 20% No.1 | 20 | $1,735 |
Paid to pharmacies, not to this prescriber.
Other nephrology in San Francisco
- Meyeon ParkSan Francisco$119K
- Raymond HsuSan Francisco$77K
- Fred LuiSan Francisco$68K
- Anjay RastogiLos Angeles$2.2M
- Glenn ChertowStanford$2M
- Luis AlvarezPalo Alto$1.8M
- Jose MorfinSacramento$1M
- Rodolfo BatarseRancho Mirage$910K
- Vandana MathurWoodside$769K
- Yasir QaziOrange$618K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.