Matthew Tiacharoen, MD
NPI 1457049595ActiveIndividual· Emergency Medicine· Temecula, CA
Emergency Medicine (MD) in Temecula, California, trained at Michigan State University College of Human Medicine (class of 2023). Part D covered 65 prescriptions written in 2024, 95% of them generic.
Overview
| NPI | 1457049595 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 26, 2023 |
| Last updated in NPPES | Nov 18, 2025 |
| Certified by provider | Nov 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A200917 | 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 - Emergency Medicine (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 65 · 65 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $508.28 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2023 |
| Medicare specialty | Emergency Medicine |
Hospital affiliation
- Corona Regional Medical CenterCorona, CA
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 28 emergency medicine physicians in Temecula · All emergency medicine physicians in California