Ralph Douglas Ensley, M.D.
NPI 1225082795ActiveIndividual· Internal Medicine, Advanced Heart Failure and Transplant Cardiology· Tulsa, OK
Internal Medicine, Advanced Heart Failure and Transplant Cardiology (M.D.) in Tulsa, Oklahoma, trained at University of Texas Southwestern Medical School at Dallas (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $1,845,899 for 8,020 claims, against $135,700 paid for services in 2024. Abiomed was the largest of 10 companies reporting payments in 2025, $1,571 in all, mostly food and beverage.
Overview
| NPI | 1225082795 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 20, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Aug 31, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Advanced Heart Failure and Transplant Cardiology Primary | 207RA0001X | 18574 | OK |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 18574 | OK |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 18574 | 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 - Advanced Heart Failure and Transplant Cardiology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 610 |
|---|---|
| Services billed | 1,669 across 101 procedure codes |
| Paid by Medicare | $135,700 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,020 · 20,215 30-day fills |
|---|---|
| Patients | 1,000 |
| Total drug cost | $1,845,899 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Advanced Heart Failure And Transplant Cardiology |
| Secondary specialties | Interventional Cardiology |
Medical groups
- Warren Clinic IncTulsa, OK · 883 clinicians
- Saint Francis Hospital, Inc.Tulsa, OK · 61 clinicians
Hospital affiliations
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$1,571 · 37 payments from 10 companies
- 2024$3,426 · 59 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $820.45 | 13 |
| Abbott Laboratories | $371.81 | 7 |
| Boston Scientific Corporation | $63.97 | 3 |
| Daiichi Sankyo Inc. | $62.20 | 4 |
| Sensible Medical Innovations Inc | $55.80 | 1 |
What the 2025 payments were for
- Food and Beverage$1,316 · 35 payments
- Travel and Lodging$254.80 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Advanced Heart Failure and Transplant Cardiology providers in Oklahoma →