John G. Ivanoff, M.D.
NPI 1497725857ActiveIndividual· Internal Medicine, Interventional Cardiology· Tulsa, OK
Internal Medicine, Interventional Cardiology (M.D.) in Tulsa, Oklahoma, trained at Medical College of Pennsylvania (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $1,052,450 for 5,358 claims, against $140,638 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 12 companies reporting payments in 2025, $703.19 in all, mostly food and beverage.
Overview
| NPI | 1497725857 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 26, 2006 |
| Last updated in NPPES | Jun 13, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 19125 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Interventional Cardiology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,838 |
|---|---|
| Services billed | 5,025 across 43 procedure codes |
| Paid by Medicare | $140,638 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,358 · 12,771 30-day fills |
|---|---|
| Patients | 754 |
| Total drug cost | $1,052,450 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Medical College of Pennsylvania |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Interventional Cardiology |
| Telehealth | Offers telehealth |
Medical groups
- Warren Clinic IncTulsa, OK · 883 clinicians
- Saint Francis Hospital, Inc.Tulsa, OK · 61 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$703.19 · 35 payments from 12 companies
- 2024$1,141 · 51 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $104.87 | 5 |
| Astrazeneca Pharmaceuticals LP | $100.90 | 5 |
| Novartis Pharmaceuticals Corporation | $87.39 | 4 |
| Esperion Therapeutics, Inc. | $87.22 | 4 |
| Pfizer Inc. | $86.46 | 4 |
What the 2025 payments were for
- Food and Beverage$703.19 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 interventional cardiologists in Tulsa · All interventional cardiologists in Oklahoma