Mehera Halliwell, M.D.
NPI 1366579138ActiveIndividual· Psychiatry & Neurology, Psychiatry· Granada Hills, CA
Psychiatry & Neurology, Psychiatry (M.D.) in Granada Hills, California, trained at University of Southern California Keck School of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $479,100 for 1,349 claims, against $17,474 paid for services in 2024. Janssen Pharmaceuticals, Inc was the largest of 8 companies reporting payments in 2025, $2,690 in all, mostly food and beverage.
Overview
| NPI | 1366579138 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 27, 2007 |
| Last updated in NPPES | Jan 30, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A90555 | 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) | Enrolled Practitioner - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 28 |
|---|---|
| Services billed | 130 across 8 procedure codes |
| Paid by Medicare | $17,474 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,349 · 1,434 30-day fills |
|---|---|
| Patients | 50 |
| Total drug cost | $479,100 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Pacific ClinicsPasadena, CA · 72 clinicians
Industry payments (Open Payments)
- 2025$2,690 · 80 payments from 8 companies
- 2024$2,959 · 80 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $647.68 | 13 |
| Teva Pharmaceuticals USA, Inc. | $513.94 | 15 |
| Otsuka America Pharmaceutical, Inc. | $416.21 | 12 |
| Alkermes, Inc. | $399.29 | 15 |
| E.R. Squibb & Sons, L.L.C. | $337.06 | 11 |
What the 2025 payments were for
- Food and Beverage$2,580 · 79 payments
- Education$109.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Psychiatry & Neurology, Psychiatry providers in Granada Hills
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All Psychiatry & Neurology, Psychiatry providers in California →