Daniel Ivan Chang, PMHNP-BC
NPI 1922727353ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Orange, CA
Nurse Practitioner, Psych/Mental Health (PMHNP-BC) with Advantage Neuropsychiatric Associates A P C, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $345,484 for 2,143 claims, against $135,489 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 10 companies reporting payments in 2025, $1,290 in all, mostly food and beverage. Lists Coastal Communities Hospital as a hospital affiliation.
Overview
| NPI | 1922727353 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP-BC |
| Sole proprietor | Yes |
| NPI issued | Aug 29, 2022 |
| Last updated in NPPES | Sep 3, 2025 |
| Certified by provider | Sep 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 95022370 | 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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 378 |
|---|---|
| Services billed | 2,323 across 9 procedure codes |
| Paid by Medicare | $135,489 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,143 · 2,295 30-day fills |
|---|---|
| Patients | 115 |
| Total drug cost | $345,484 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Advantage Neuropsychiatric Associates A P COrange, CA · 16 clinicians
Hospital affiliation
- Coastal Communities HospitalSanta Ana, CA
Industry payments (Open Payments)
- 2025$1,290 · 33 payments from 10 companies
- 2024$1,757 · 37 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $229.70 | 6 |
| Janssen Pharmaceuticals, Inc | $180.09 | 8 |
| Teva Pharmaceuticals USA, Inc. | $148.46 | 3 |
| Alkermes, Inc. | $139.50 | 2 |
| Vanda Pharmaceuticals Inc. | $138.61 | 2 |
What the 2025 payments were for
- Food and Beverage$1,290 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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