Melissa Johnston, PA-C
NPI 1578264982ActiveIndividual· Physician Assistant· Orange, CA
Physician Assistant (PA-C) with Kusum M Ohri, M.D. Inc, practicing in Orange, California. Part D covered 3,210 prescriptions written in 2024, 88% of them generic. Amgen Inc. was the largest of 12 companies reporting payments in 2025, $898.80 in all, mostly food and beverage.
Overview
| NPI | 1578264982 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Mar 13, 2023 |
| Last updated in NPPES | Nov 14, 2024 |
| Certified by provider | Nov 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA62285 | 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) | Enrolled Practitioner - Physician Assistant (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 3,210 · 7,853 30-day fills |
|---|---|
| Patients | 538 |
| Total drug cost | $316,596 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Kusum M Ohri, M.D. IncOrange, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$898.80 · 34 payments from 12 companies
- 2024$617.20 · 22 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $300.81 | 8 |
| Lilly USA, LLC | $102.23 | 5 |
| Astrazeneca Pharmaceuticals LP | $86.12 | 4 |
| Novo Nordisk Inc | $79.79 | 3 |
| Astellas Pharma US Inc | $74.87 | 3 |
What the 2025 payments were for
- Food and Beverage$723.80 · 33 payments
- Consulting Fee$175.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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