Ronald Mastouri, MD
NPI 1134389968ActiveIndividual· Internal Medicine, Cardiovascular Disease· Indianapolis, IN
Internal Medicine, Cardiovascular Disease (MD) with Iu Health Medical Group LLC and 3 other groups, practicing in Indianapolis, Indiana. Their prescriptions cost Medicare Part D more than their services did: $234,429 for 1,628 claims, against $64,387 paid for services in 2024. Novo Nordisk Inc reported $4,710 in payments in 2025, mostly consulting fees. Lists Eskenazi Health and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1134389968 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 16, 2008 |
| Last updated in NPPES | Mar 14, 2025 |
| Certified by provider | Mar 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 01067326A | IN |
| Student in an Organized Health Care Education/Training Program | 390200000X | 11012317A | IN |
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 - Internal Medicine (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,285 |
|---|---|
| Services billed | 2,130 across 39 procedure codes |
| Paid by Medicare | $64,387 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,628 · 4,115 30-day fills |
|---|---|
| Patients | 219 |
| Total drug cost | $234,429 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical groups
- Iu Health Medical Group LLCIndianapolis, IN · 4,462 clinicians
- The Health and Hospital Corporation of Marion CountyIndianapolis, IN · 236 clinicians
- Johnson Memorial HospitalFranklin, IN · 39 clinicians
- Indiana University Health IncCarmel, IN · 37 clinicians
Hospital affiliations
- Eskenazi HealthIndianapolis, IN
- Hancock Regional HospitalGreenfield, IN
- Indiana University HealthIndianapolis, IN
- Johnson Memorial HospitalFranklin, IN
- Union Hospital IncTerre Haute, IN
Industry payments (Open Payments)
- 2025$4,710 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $4,710 | 2 |
What the 2025 payments were for
- Consulting Fee$4,710 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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