Arthur Trapp Chalmers, MPH, PA-C
NPI 1013465715ActiveIndividual· Physician Assistant· Sacramento, CA
Physician Assistant (MPH, PA-C) in Sacramento, California, licensed in CA, with an NPI issued in September 2016. 109 Medicare patients in 2024, $39,329 paid; nearly all of their 264 Part D prescriptions were generic (92%).
Overview
| NPI | 1013465715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MPH, PA-C |
| Sole proprietor | Yes |
| NPI issued | Sep 12, 2016 |
| Last updated in NPPES | Jan 14, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA53717 | 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 | 109 |
|---|---|
| Services billed | 465 across 7 procedure codes |
| Paid by Medicare | $39,329 |
Part D prescriptions in 2024
| Prescriptions (claims) | 264 · 268 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $10,901 |
| Generic share | 92% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 392 physician assistants in Sacramento · All physician assistants in California