John Grant O'Brien, PHARMD
NPI 1770615452ActiveIndividual· Pharmacist, Pharmacotherapy· San Jose, CA
Pharmacist, Pharmacotherapy (PHARMD) in San Jose, California, licensed in CA, with an NPI issued in March 2007. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1770615452 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHARMD |
| Sole proprietor | Yes |
| NPI issued | Mar 9, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pharmacist, Pharmacotherapy Primary | 1835P1200X | 45683 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | John David O'Brien · Home Health Agency | 1128a1 | Dec 20, 2021 | Chino, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
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