Quick answers
- Which hospitals does Brian Tzung work at?
- Medicare's official clinician data lists Brian Tzung at 5 hospitals: Hoag Memorial Hospital Presbyterian, Memorialcare Saddleback Medical Center, Providence Mission Hospital, Providence St. Jude Medical Center and UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brian Tzung see patients?
- Medicare's clinician data lists 7 practice locations, including Fullerton, CA, Orange, CA and Irvine, CA. Call before your visit to confirm the address.
- What is Brian Tzung's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Brian Tzung accept Medicare assignment?
- Yes. Medicare's clinician data says Brian Tzung 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 Brian Tzung?
- (714) 771-8171, as listed in official Medicare / NPI Registry data.
- What is Brian Tzung's NPI number?
- 1437313582. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brian Tzung works
Medicare's Facility Affiliation Data lists Brian Tzung at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · CCN 050224
- Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · CCN 050603
- Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · CCN 050567
- Providence St. Jude Medical CenterFullerton, CA · Acute Care Hospital · CCN 050168
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Brian Tzung is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 101 E Valencia Mesa DrFullerton, CA 92835
- 1100 W Stewart Dr, St Joseph HospitalOrange, CA 92868 (714) 771‑8171
- 2141 N Harbor Blvd, Suite 16000Fullerton, CA 92835
- 24 Crimson RoseIrvine, CA 92603
- 31872 Coast HwyLaguna Beach, CA 92651 (949) 499‑1311
Group practices
Medicare enrollment lists Brian Tzung as a member of these groups (CMS data updated 2026-10-02).
- St Jude Radiology Medical Group Inc61 clinicians in the group
- Moran Rowen and Dorsey Inc37 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Fullerton
Clinicians with the same Medicare primary specialty in Fullerton, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437313582 |
| 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