Cassandra Riddle, DO
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (44.2%), travel and lodging and education — rather than concentrated in one kind of arrangement. 21 manufacturers reported payments, led by TELA Bio, Inc. at 41.5% of the total. Reporting peaked in 2023 at $4,230 and has fallen 84.5% since, to $655 in 2025.
Across 62 payments — averaging $136.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- TELA Bio, Inc.$4K
- Intuitive Surgical$2K
- Stryker$662
- Polynovo North America LLC$638
- Viiv Healthcare Company$213
- BD$206
- plus $1K from 15 others
What the payments were for
- Travel & lodging$3,72044%
- Food & beverage$3,74644%
- Education$1,00012%
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 |
|---|---|---|
| TELA Bio, Inc. | 17 | $3,517 |
| Intuitive Surgical | 8 | $1,909 |
| Stryker | 3 | $662 |
| Polynovo North America LLC | 8 | $638 |
| Viiv Healthcare Company | 2 | $213 |
| BD | 4 | $206 |
| Kerecis Limited | 2 | $191 |
| Boston Scientific | 2 | $166 |
| Acera Surgical, Inc. | 1 | $161 |
| Davol Inc. | 1 | $161 |
| Pacira Pharmaceuticals Incorporated | 1 | $123 |
| TAS Medical, Inc. | 2 | $117 |
| Medline Industries LP | 1 | $73 |
| W. L. Gore & Associates, Inc. | 1 | $57 |
| Biocomposites Inc | 2 | $50 |
| Vertex | 2 | $47 |
| Abiomed | 1 | $44 |
| Johnson & Johnson | 1 | $38 |
| Baxter Healthcare | 1 | $34 |
| Conmed Corporation | 1 | $32 |
| Teleflex LLC | 1 | $28 |
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.
- OviTex Reinforced Bioscaffold With Permanent Polymer (OviTex)$3,000
- DAVINCI XI$1,000
- Da Vinci Surgical System$798
- 1788$458
- Kerecis Omega3 SurgiClose$429
- SPY-PHI SYSTEM$162
- Restrata Wound Matrix$161
- ARISTA AH FLEXITIP$161
- Phasix Mesh$151
- SpyScope DS$148
- Kerecis Omega3 GraftGuide$143
- Kerecis Omega3 Marigen$143
- OviTex 2S$141
- EXPAREL$123
- DOVATO$114
How this compares
$8,466 in reported general payments places this provider in the 80th percentile of 290 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 |
|---|---|---|
| Celecoxib | 35 | $372 |
| Ondansetron OdtOndansetron | 48 | $315 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 46 | $277 |
| Tizanidine Hcl | 27 | $139 |
Paid to pharmacies, not to this prescriber.
Other surgery in Tulsa
- Craig JohnsonTulsa$573K
- Eugene DickensTulsa$456K
- William JenningsTulsa$412K
- Bryce MurrayTulsa$152K
- Steven FeherTulsa$50K
- Samuel PangburnTulsa$50K
- Jared LepleyTulsa$48K
- Ty KirkpatrickTulsa$28K
- John KingTulsa$24K
- Michael ThomasTulsa$22K
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.