Andrew W. Johnson, MMS, PA-C
NPI 1730778978ActiveIndividual· Physician Assistant, Medical· Costa Mesa, CA
Physician Assistant, Medical (MMS, PA-C) with Pacific Neuropsychiatric Specialists Inc, practicing in Costa Mesa, California. Their prescriptions cost Medicare Part D more than their services did: $439,795 for 1,685 claims, against $18,848 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 21 companies reporting payments in 2025, $4,545 in all, mostly food and beverage.
Overview
| NPI | 1730778978 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MMS, PA-C |
| Sole proprietor | Yes |
| NPI issued | Jan 12, 2021 |
| Last updated in NPPES | Jan 8, 2025 |
| Certified by provider | Jan 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 59223 | CA |
| Physician Assistant | 363A00000X | PA59223 | CA |
| Physician Assistant, Medical | 363AM0700X | — | — |
| Physician Assistant, Surgical | 363AS0400X | — | — |
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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 287 across 9 procedure codes |
| Paid by Medicare | $18,848 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,685 · 2,196 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $439,795 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Pacific Neuropsychiatric Specialists IncCorona, CA · 72 clinicians
Industry payments (Open Payments)
- 2025$4,545 · 210 payments from 21 companies
- 2024$5,120 · 235 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $636.82 | 33 |
| Neurocrine Biosciences, Inc. | $552.80 | 24 |
| Abbvie Inc. | $550.33 | 26 |
| Vanda Pharmaceuticals Inc. | $487.06 | 22 |
| E.R. Squibb & Sons, L.L.C. | $326.67 | 14 |
What the 2025 payments were for
- Food and Beverage$4,545 · 210 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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