Quick answers
- Which hospitals does Stephen J. Liu work at?
- Medicare's official clinician data lists Stephen J. Liu at 3 hospitals: Adventist Health White Memorial, Glendale Memorial Hospital & Health Center and Mountains Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen J. Liu see patients?
- Medicare's clinician data lists 2 practice locations, including Northridge, CA and Lake Arrowhead, CA. Call before your visit to confirm the address.
- What is Stephen J. Liu's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Stephen J. Liu accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen J. Liu 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 Stephen J. Liu?
- (818) 885-5396, as listed in official Medicare / NPI Registry data.
- What is Stephen J. Liu's NPI number?
- 1083666259. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen J. Liu works
Medicare's Facility Affiliation Data lists Stephen J. Liu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health White MemorialLos Angeles, CA · Acute Care Hospital · CCN 050103
- Glendale Memorial Hospital & Health CenterGlendale, CA · Acute Care Hospital · CCN 050058
- Mountains Community HospitalLake Arrowhead, CA · Critical Access Hospital · CCN 051312
Practice locations
Addresses where Stephen J. Liu is enrolled with Medicare (CMS data updated 2026-10-02).
- 18300 Roscoe BlvdNorthridge, CA 91325 (818) 885‑5396
- 29101 Hospital RdLake Arrowhead, CA 92352 (909) 436‑3080
Group practices
Medicare enrollment lists Stephen J. Liu as a member of these groups (CMS data updated 2026-10-02).
- Ridgeline Emergency Physicians Medical Group, Inc.41 clinicians in the group
- Elite Hospitalist Medical Group Inc15 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Northridge
Clinicians with the same Medicare primary specialty in Northridge, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Carolina At Chapel Hill School Of Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083666259 |
| 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