Aaron J. Kelkhoff, MD
NPI 1598007478ActiveIndividual· Internal Medicine, Advanced Heart Failure and Transplant Cardiology· Tulsa, OK
Internal Medicine, Advanced Heart Failure and Transplant Cardiology (MD) in Tulsa, Oklahoma, trained at University of Arkansas College of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $1,833,776 for 2,886 claims, against $125,866 paid for services in 2024. Alnylam Pharmaceuticals Inc. was the largest of 13 companies reporting payments in 2025, $941.90 in all, mostly food and beverage.
Overview
| NPI | 1598007478 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 19, 2013 |
| Last updated in NPPES | Apr 14, 2026 |
| Certified by provider | Apr 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Advanced Heart Failure and Transplant Cardiology Primary | 207RA0001X | 36992 | OK |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 36992 | 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); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,995 |
|---|---|
| Services billed | 4,686 across 52 procedure codes |
| Paid by Medicare | $125,866 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,886 · 6,583 30-day fills |
|---|---|
| Patients | 430 |
| Total drug cost | $1,833,776 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Advanced Heart Failure And Transplant Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical groups
- Warren Clinic IncTulsa, OK · 883 clinicians
- Saint Francis Hospital, Inc.Tulsa, OK · 61 clinicians
- Saint Francis Hospital Muskogee IncMuskogee, OK · 12 clinicians
Hospital affiliations
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital Vinita, IncVinita, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$941.90 · 44 payments from 13 companies
- 2024$1,262 · 66 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alnylam Pharmaceuticals Inc. | $257.37 | 6 |
| E.R. Squibb & Sons, L.L.C. | $228.59 | 13 |
| Novartis Pharmaceuticals Corporation | $102.47 | 5 |
| Amgen Inc. | $75.19 | 5 |
| Novo Nordisk Inc | $63.54 | 3 |
What the 2025 payments were for
- Food and Beverage$941.90 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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