Quick answers
- Which hospitals does Matthew Tiacharoen work at?
- Medicare's official clinician data lists Matthew Tiacharoen at 1 hospital: Corona Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew Tiacharoen see patients?
- Medicare's clinician data lists 4 practice locations, including Fontana, CA, Woodland Hills, CA and El Segundo, CA. Call before your visit to confirm the address.
- What is Matthew Tiacharoen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Matthew Tiacharoen accept Medicare assignment?
- Medicare's clinician data says Matthew Tiacharoen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Matthew Tiacharoen's NPI number?
- 1457049595. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew Tiacharoen works
Medicare's Facility Affiliation Data lists Matthew Tiacharoen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corona Regional Medical CenterCorona, CA · Acute Care Hospital · CCN 050329
Practice locations
Addresses where Matthew Tiacharoen is enrolled with Medicare (CMS data updated 2026-10-02).
- 13584 Hatcher PlFontana, CA 92336
- 5950 Canoga Ave, Suite 300Woodland Hills, CA 91367
- 898 N Pacific Coast Hwy, Suite 600El Segundo, CA 90245
- 898 N Pacific Coast Hwy 600El Segundo, CA 90245
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Fontana
Clinicians with the same Medicare primary specialty in Fontana, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1457049595 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians