Alison Megan Trexler, M.D.
NPI 1003104704ActiveIndividual· Psychiatry & Neurology, Psychiatry· Encinitas, CA
Psychiatry & Neurology, Psychiatry (M.D.) in Encinitas, California, trained at Mercer University School of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $158,644 for 983 claims, against $9,965 paid for services in 2024. Teva Pharmaceuticals USA, Inc. was the largest of 5 companies reporting payments in 2025, $192.26 in all, mostly food and beverage.
Overview
| NPI | 1003104704 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 14, 2011 |
| Last updated in NPPES | Jun 20, 2024 |
| Certified by provider | Jun 20, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A136881 | 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 - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 99 across 8 procedure codes |
| Paid by Medicare | $9,965 |
Part D prescriptions in 2024
| Prescriptions (claims) | 983 · 1,651 30-day fills |
|---|---|
| Patients | 163 |
| Total drug cost | $158,644 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Mercer University School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical groups
- Pacific Coast Psychiatric Associates IncEncinitas, CA · 662 clinicians
- Community Research Foundation IncEscondido, CA · 65 clinicians
- Mental Health Systems IncOceanside, CA · 34 clinicians
Industry payments (Open Payments)
- 2025$192.26 · 7 payments from 5 companies
- 2024$316.82 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teva Pharmaceuticals USA, Inc. | $58.98 | 2 |
| E.R. Squibb & Sons, L.L.C. | $56.76 | 2 |
| Neurocrine Biosciences, Inc. | $33.25 | 1 |
| Abbvie Inc. | $24.08 | 1 |
| Lundbeck LLC | $19.19 | 1 |
What the 2025 payments were for
- Food and Beverage$192.26 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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