Irmina Gradus-Pizlo, M.D.
NPI 1356305254ActiveIndividual· Internal Medicine, Cardiovascular Disease· Orange, CA
Internal Medicine, Cardiovascular Disease (M.D.) with Uc Regents, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $307,495 for 1,960 claims, against $99,996 paid for services in 2024. Lists Hoag Memorial Hospital Presbyterian and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1356305254 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 17, 2006 |
| Last updated in NPPES | Dec 22, 2022 |
| Certified by provider | Dec 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | C150958 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 01044711 | IN |
| Internal Medicine, Clinical Cardiac Electrophysiology | 207RC0001X | 01044711A | IN |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 01044711A | 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,458 |
|---|---|
| Services billed | 2,341 across 41 procedure codes |
| Paid by Medicare | $99,996 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,960 · 4,758 30-day fills |
|---|---|
| Patients | 342 |
| Total drug cost | $307,495 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- Uc RegentsOrange, CA · 319 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Providence St. Joseph HospitalOrange, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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