Quick answers
- Which hospitals does James Hsiao work at?
- Medicare's official clinician data lists James Hsiao at 1 hospital: Grossmont Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James Hsiao see patients?
- Medicare's clinician data lists 1 practice location in La Mesa, CA. Call before your visit to confirm the address.
- What is James Hsiao's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does James Hsiao accept Medicare assignment?
- Yes. Medicare's clinician data says James Hsiao accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for James Hsiao?
- (619) 465-0711, as listed in official Medicare / NPI Registry data.
- What is James Hsiao's NPI number?
- 1306022959. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James Hsiao works
Medicare's Facility Affiliation Data lists James Hsiao at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · CCN 050026
Practice locations
Addresses where James Hsiao is enrolled with Medicare (CMS data updated 2026-10-02).
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 465‑0711
Group practices
Medicare enrollment lists James Hsiao as a member of this group (CMS data updated 2026-10-02).
- Team Physicians of Northern California Medical Group Inc85 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in La Mesa
Clinicians with the same Medicare primary specialty in La Mesa, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306022959 |
| 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