H R Christopher O'Brien, PHARM.D, BCPP, APH
NPI 1598885162ActiveIndividual· Pharmacist, Psychiatric· Los Angeles, CA
Pharmacist, Psychiatric (PHARM.D, BCPP, APH) in Los Angeles, California, licensed in CA, with an NPI issued in March 2007. Part D covered 4,675 prescriptions written in 2024, 96% of them generic.
Overview
| NPI | 1598885162 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHARM.D, BCPP, APH |
| Sole proprietor | Yes |
| NPI issued | Mar 29, 2007 |
| Last updated in NPPES | Dec 12, 2025 |
| Certified by provider | Dec 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pharmacist, Psychiatric Primary | 1835P1300X | 10158 | CA |
| Pharmacist | 183500000X | 49570 | CA |
| Clinical Pharmacology | 208U00000X | 49570 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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) | 4,675 · 4,742 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $514,366 |
| Generic share | 96% of claims |
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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