John Gregory Duffy MD, APC
NPI 1093985137ActiveOrganization· Psychiatry & Neurology, Psychiatry· Tustin, CA
Psychiatry & Neurology, Psychiatry in Tustin, California, registered in NPPES in March 2008. The authorized official on file is John Gregory Duffy, M.D,, President.
Overview
| NPI | 1093985137 |
|---|---|
| Status | Active |
| Entity type | Organization |
| NPI issued | Mar 5, 2008 |
| Last updated in NPPES | Mar 11, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A054948 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
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