Cassandra Lee Riddle, DO
NPI 1679074132ActiveIndividual· Surgery· Tulsa, OK
Surgery (DO) with Warren Clinic Inc, practicing in Tulsa, Oklahoma. 78 Medicare patients in 2024, $22,706 paid; all of their 183 Part D prescriptions were generic. Becton, Dickinson and Company was the largest of 10 companies reporting payments in 2025, $654.68 in all, mostly food and beverage. Lists Saint Francis Hospital South, LLC and 1 other hospital as hospital affiliations.
Overview
| NPI | 1679074132 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Feb 21, 2018 |
| Last updated in NPPES | Dec 19, 2023 |
| Certified by provider | Dec 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 6637 | OK |
| Emergency Medicine | 207P00000X | 6637 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 78 |
|---|---|
| Services billed | 138 across 31 procedure codes |
| Paid by Medicare | $22,706 |
Part D prescriptions in 2024
| Prescriptions (claims) | 183 · 183 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $1,429 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical group
- Warren Clinic IncTulsa, OK · 883 clinicians
Hospital affiliations
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$654.68 · 15 payments from 10 companies
- 2024$1,277 · 13 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Becton, Dickinson and Company | $205.69 | 4 |
| Acera Surgical, Inc. | $161.40 | 1 |
| Biocomposites Inc | $50.10 | 2 |
| Vertex Pharmaceuticals Incorporated | $47.26 | 2 |
| Abiomed | $43.89 | 1 |
What the 2025 payments were for
- Food and Beverage$654.68 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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