Irene Aiyun Chang, MD
NPI 1013610161ActiveIndividual· Student in an Organized Health Care Education/Training Program· Sacramento, CA
Student in an Organized Health Care Education/Training Program (MD) in Sacramento, California, with an NPI issued in March 2023. Part D covered 28 prescriptions written in 2024, 100% of them generic. Dilon Technologies, Inc. was the largest of 6 companies reporting payments in 2025, $1,836 in all, mostly food and beverage.
Overview
| NPI | 1013610161 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2023 |
| Last updated in NPPES | Mar 27, 2023 |
| Certified by provider | Mar 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Student in an Organized Health Care Education/Training Program Primary | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 28 · 32 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $144.05 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$1,836 · 20 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dilon Technologies, Inc. | $1,014 | 12 |
| Polynovo North America LLC | $327.76 | 3 |
| Innovation Technologies Inc | $223.72 | 2 |
| Motiva USA, LLC | $170.85 | 1 |
| Abbvie Inc. | $81.56 | 1 |
What the 2025 payments were for
- Food and Beverage$1,836 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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