Ian Whitmarsh, CRNA
Nurse Anesthetist, Certified Registered · Tulsa, OKNPI 1821277542
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.0% of the total across 89 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 13 manufacturers reported payments, led by Takeda Pharmaceuticals U.S.A., Inc. at 38.2% of the total. 2025 is the largest year on record at $822, more than ten times the $44 reported in 2021. Among nurse anesthetist, certified registered 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 89 payments — averaging $24.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Takeda Pharmaceuticals U.S.A., Inc.$839
- AbbVie$322
- Phathom Pharmaceuticals, Inc.$234
- Regeneron Healthcare Solutions, Inc.$229
- Madrigal Pharmaceuticals$159
- Braintree Laboratories, Inc.$133
- plus $281 from 7 others
What the payments were for
- Food & beverage$2,17399%
- Education$231%
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.
How this compares
$2,196 in reported general payments places this provider in the 95th percentile of 504 nurse anesthetist, certified registered providers in Oklahoma.
See all nurse anesthetist, certified registered 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.
Other nurse anesthetist, certified registered in Tulsa
- Aubrey BallardTulsa$6K
- Xian ZhangTulsa$4K
- Hollie ShipleyTulsa$4K
- Jennifer YoungTulsa$2K
- Jeffrey HensleyTulsa$1K
- Lizabeth MalikTulsa$681
- Jason ButlerTulsa$552
- Sheila FosterTulsa$480
- Dawn CampbellTulsa$453
- Shannon BevilleTulsa$409
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.