Keithen Cast, DO
Emergency Medicine · Oklahoma City, OKNPI 1356904940
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 29 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 9 manufacturers reported payments, led by AstraZeneca at 46.8% of the total. Reporting peaked in 2022 at $596 and has fallen 82.1% since, to $107 in 2025. Among emergency medicine clinicians in OK 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 29 payments — averaging $60.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$824
- CSL Behring$205
- Inari Medical, Inc.$181
- E.r. Squibb & Sons, L.L.C.$143
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$134
- BTG International Inc.$89
- plus $187 from 3 others
What the payments were for
- Food & beverage$1,763100%
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.
| Company | Payments | Total |
|---|---|---|
| AstraZeneca(2 entities) | 11 | $824 |
| CSL Behring | 2 | $205 |
| Inari Medical, Inc. | 2 | $181 |
| E.r. Squibb & Sons, L.L.C. | 2 | $143 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 5 | $134 |
| BTG International Inc. | 1 | $89 |
| Johnson & Johnson | 3 | $81 |
| La Jolla Pharmaceutical Company | 1 | $79 |
| Merck | 2 | $27 |
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.
- LOKELMA$332
- ANDEXXA$330
- FLOWTRIEVER CATHETER, S$168
- CT THROMBECTOMY SYSTEM KIT$168
- ELIQUIS$128
- Kcentra$107
How this compares
$1,763 in reported general payments places this provider in the 95th percentile of 682 emergency medicine providers in Oklahoma.
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 |
|---|---|---|
| Cefpodoxime Proxetil | 25 | $1,557 |
| Ondansetron OdtOndansetron | 21 | $219 |
| Doxycycline Monohydrate | 14 | $179 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 20 | $114 |
| Prednisone | 15 | $27 |
| Meloxicam | 11 | $13 |
Paid to pharmacies, not to this prescriber.
Other emergency medicine in Oklahoma City
- Tyson QuyOklahoma City$71K
- Lindsey EppersonOklahoma City$50K
- Stacia ShipmanOklahoma City$3K
- Keri SmithOklahoma City$3K
- Jeffrey ShipmanOklahoma City$3K
- Michael WatsonOklahoma City$2K
- Landon RiesenbergOklahoma City$2K
- Leslie BarcenasOklahoma City$2K
- Jithin JoseOklahoma City$2K
- Ryan GriswoldOklahoma City$2K
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.