Edward Kost, MD
Gynecologic Oncology · San Antonio, TXNPI 1184615452
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $3,665 of the $5,593 with a category attached, or 65.5%. 10 manufacturers reported payments, led by AstraZeneca at 39.5% of the total. Reporting peaked in 2021 at $2,203 and has fallen 93.6% since, to $141 in 2025.
Across 28 payments — averaging $199.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$2K
- GSK$2K
- Seagen Inc.$478
- Myriad Genetic Laboratories, Inc.$289
- Immunogen, Inc.$274
- Merck$125
- plus $270 from 4 others
What the payments were for
- Consulting fees$3,66566%
- Food & beverage$1,82833%
- Education$1002%
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 |
|---|---|---|
| AstraZeneca | 6 | $2,208 |
| GSK | 1 | $1,950 |
| Seagen Inc. | 11 | $478 |
| Myriad Genetic Laboratories, Inc. | 3 | $289 |
| Immunogen, Inc. | 2 | $274 |
| Merck | 1 | $125 |
| Eisai Inc. | 1 | $123 |
| Clovis Oncology, Inc. | 1 | $118 |
| Corcept Therapeutics | 1 | $16 |
| Therapeuticsmd, Inc. | 1 | $13 |
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
$5,593 in reported general payments places this provider in the 65th percentile of 135 gynecologic oncology providers in Texas.
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 gynecologic oncology in San Antonio
- Joseph de la GarzaSan Antonio$234K
- Antonio Santillan-GomezSan Antonio$162K
- James SzenderSan Antonio$36K
- James MarkSan Antonio$6K
- Jaron MarkSan Antonio$6K
- Kassondra GrzankowskiSan Antonio$5K
- Stuart WinklerSan Antonio$5K
- Corinne JordanSan Antonio$4K
- Robert ColemanHouston$864K
- Reagan StreetFort Worth$280K
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.