Ryan Rahhal, MD
Neurological Surgery · Tulsa, OKNPI 1932241742
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 40 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 22 manufacturers, the largest accounting for just 15.6% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $441, 2.1 times the $205 reported in 2019. That places this record below the midpoint for neurological surgery clinicians in OK, where the typical reported total is $1,952.
Across 40 payments — averaging $36.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Providence Medical Technology, Inc.$229
- Kuros Biosciences USA, Inc$188
- Highridge Medical LLC$166
- Pfizer$104
- Zimvie Inc.$72
- Aesculap, Inc.$63
- plus $645 from 16 others
What the payments were for
- Food & beverage$1,467100%
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 |
|---|---|---|
| Providence Medical Technology, Inc. | 4 | $229 |
| Kuros Biosciences USA, Inc | 1 | $188 |
| Highridge Medical LLC | 3 | $166 |
| Pfizer | 4 | $104 |
| Zimvie Inc. | 2 | $72 |
| Aesculap, Inc. | 1 | $63 |
| Globus Medical | 2 | $61 |
| Baxter Healthcare | 3 | $60 |
| Integra Lifesciences Corporation | 3 | $59 |
| Zimmer Biomet | 2 | $58 |
| AstraZeneca | 2 | $54 |
| Johnson & Johnson | 2 | $54 |
| Augmedics Inc. | 1 | $51 |
| Portola Pharmaceuticals, LLC | 2 | $45 |
| Kls-martin L.p. | 1 | $40 |
| Arteriocyte Medical Systems, Inc. | 1 | $35 |
| Alphatec Spine, Inc | 1 | $33 |
| Medtronic | 1 | $23 |
| Si-bone, Inc. | 1 | $20 |
| Bioventus LLC | 1 | $20 |
| Stryker | 1 | $19 |
| Kowa Pharmaceuticals America, Inc. | 1 | $15 |
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
$1,467 in reported general payments places this provider in the 40th percentile of 80 neurological surgery 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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 18 | $163 |
| Methylprednisolone | 14 | $103 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 19 | $95 |
| Cyclobenzaprine Hcl | 20 | $72 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Tulsa
- Clinton BairdTulsa$621K
- Michael ThambuswamyTulsa$92K
- Daniel HarwellTulsa$63K
- Mohammad Yashar KalaniTulsa$23K
- Kevin KlosTulsa$21K
- Tyler AuschwitzTulsa$17K
- Brian HoodTulsa$13K
- Shihao ZhangTulsa$8K
- Donald SchleicherTulsa$6K
- John MaroukTulsa$4K
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.