Treanna Lynne Mather, P.A.
NPI 1942440334ActiveIndividual· Physician Assistant, Surgical· Orange, CA
Physician Assistant, Surgical (P.A.) in Orange, California, trained at Loma Linda University School of Medicine (class of 2008). 486 Medicare patients in 2024, $89,894 paid; nearly all of their 588 Part D prescriptions were generic (99%). Vertex Pharmaceuticals Incorporated was the largest of 3 companies reporting payments in 2025, $213.14 in all, mostly food and beverage.
Overview
| NPI | 1942440334 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | Yes |
| NPI issued | Feb 25, 2009 |
| Last updated in NPPES | Feb 25, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | PA20026 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 486 |
|---|---|
| Services billed | 1,690 across 33 procedure codes |
| Paid by Medicare | $89,894 |
Part D prescriptions in 2024
| Prescriptions (claims) | 588 · 601 30-day fills |
|---|---|
| Patients | 190 |
| Total drug cost | $6,770 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Physician Assistant |
Medical group
- Orthopaedic Specialty Institute Medical Group of Orange CountyNewport Beach, CA · 64 clinicians
Hospital affiliation
- Hoag Orthopedic InstituteIrvine, CA
Industry payments (Open Payments)
- 2025$213.14 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $120.25 | 1 |
| Medical Device Business Services, Inc. | $76.95 | 3 |
| Pacira Pharmaceuticals Incorporated | $15.94 | 1 |
What the 2025 payments were for
- Food and Beverage$213.14 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 surgical physician assistants in Orange · All surgical physician assistants in California