Elham Vosoughi, MD
Hematology & Oncology · San Mateo, CANPI 1134658669
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 1 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Every reported general payment came from a single manufacturer, Regeneron Healthcare Solutions, Inc.. That places this record below the midpoint for hematology & oncology clinicians in CA, where the typical reported total is $3,371.
Across 1 payment — averaging $125.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron Healthcare Solutions, Inc.$125
What the payments were for
- Food & beverage$125100%
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.
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 |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | 1 | $125 |
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.
- LIBTAYO$125
How this compares
$125 in reported general payments places this provider in the 10th percentile of 1,363 hematology & oncology 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| LynparzaOlaparib | 11 | $163,552 |
| Exemestane | 11 | $2,698 |
| Anastrozole | 111 | $2,033 |
| Letrozole | 19 | $430 |
| Tamoxifen Citrate | 13 | $282 |
| Dexamethasone | 13 | $194 |
| Ondansetron Hcl | 19 | $159 |
| Prochlorperazine Maleate | 15 | $133 |
| Gabapentin | 11 | $127 |
Paid to pharmacies, not to this prescriber.
Other hematology & oncology in San Mateo
- Dennis SlamonLos Angeles$3.1M
- Sandra HorningStanford$2.5M
- Mohammadbagher ZiariCorona$2.5M
- George YaghmourLos Angeles$1.9M
- Robert VescioWest Hollywood$1.1M
- Kevin KellyLos Angeles$894K
- Johnny ChangEncino$884K
- Nitin RohatgiSacramento$814K
- Omid HamidSanta Monica$809K
- Catherine CoombsOrange$786K
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.