Odmara Barreto Chang
Anesthesiology · San Francisco, CANPI 1497012629
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $6,120 of the $8,072 with a category attached, or 75.8%. Every reported general payment came from a single manufacturer, Medtronic. Among anesthesiology 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 18 payments — averaging $448.43 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$8K
Across 23 payments — averaging $24,075 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.
- Medtronic$554K
What the payments were for
- Consulting fees$6,12076%
- Travel & lodging$1,37617%
- Food & beverage$5767%
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 |
|---|---|---|
| Medtronic | 18 | $8,072 |
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.
- BIS$7,644
How this compares
$8,072 in reported general payments places this provider in the 95th percentile of 5,717 anesthesiology providers in California.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other anesthesiology in San Francisco
- Adrian GelbSan Francisco$123K
- John WinchesterSan Francisco$111K
- Christian ApfelSan Francisco$54K
- Jack JengSouth San Francisco$1.3M
- Roger PhillipsChico$434K
- David DeyhimyLaguna Hills$344K
- Maxime CannessonLos Angeles$336K
- Alexander RoherSan Diego$282K
- Moody MakarLos Angeles$252K
- Jonathan JahrLos Angeles$223K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.