Julie K. Marhefka, PMHNP-BC
NPI 1699077123ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Oceanside, CA
Nurse Practitioner, Psych/Mental Health (PMHNP-BC) with Mental Health Systems Inc, practicing in Oceanside, California. Their prescriptions cost Medicare Part D more than their services did: $245,945 for 919 claims, against $1,839 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 10 companies reporting payments in 2025, $961.60 in all, mostly food and beverage.
Overview
| NPI | 1699077123 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP-BC |
| Sole proprietor | Yes |
| NPI issued | Dec 5, 2010 |
| Last updated in NPPES | Apr 3, 2023 |
| Certified by provider | Apr 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 95009591 | CA |
| Registered Nurse | 163W00000X | 401236 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 38 across 4 procedure codes |
| Paid by Medicare | $1,839 |
Part D prescriptions in 2024
| Prescriptions (claims) | 919 · 962 30-day fills |
|---|---|
| Patients | 43 |
| Total drug cost | $245,945 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Mental Health Systems IncOceanside, CA · 34 clinicians
Industry payments (Open Payments)
- 2025$961.60 · 42 payments from 10 companies
- 2024$638.74 · 28 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $216.81 | 9 |
| Vanda Pharmaceuticals Inc. | $178.28 | 6 |
| Neurocrine Biosciences, Inc. | $121.87 | 4 |
| Teva Pharmaceuticals USA, Inc. | $110.68 | 6 |
| Abbvie Inc. | $90.54 | 4 |
What the 2025 payments were for
- Food and Beverage$961.60 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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