Irene Z. Chen, MD
Student in an Organized Health Care Education/Training Program (MD) with Permanente Medical Group Inc, practicing in Colton, California. Their prescriptions cost Medicare Part D more than their services did: $158,513 for 2,333 claims, against $1,600 paid for services in 2024. Medtronic, Inc. reported $167.07 in payments in 2025, mostly food and beverage. Lists Kaiser Foundation Hospital - Oakland/Richmond as a hospital affiliation.
Overview
| NPI | 1700383379 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 10, 2018 |
| Last updated in NPPES | Dec 23, 2021 |
| Certified by provider | Dec 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Student in an Organized Health Care Education/Training Program Primary | 390200000X | — | CA |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 29 across 9 procedure codes |
| Paid by Medicare | $1,600 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,333 · 5,712 30-day fills |
|---|---|
| Patients | 316 |
| Total drug cost | $158,513 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$167.07 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $167.07 | 1 |
What the 2025 payments were for
- Food and Beverage$167.07 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 281 Student in an Organized Health Care Education/Training Program providers in Colton · All Student in an Organized Health Care Education/Training Program providers in California