Quick answers
- Which hospitals does Olga Lyass work at?
- Medicare's official clinician data lists Olga Lyass at 5 hospitals: Glendale Memorial Hospital & Health Center, Maui Memorial Medical Center, Northridge Hospital Medical Center, Providence Saint Joseph Medical Center and St Mary Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Olga Lyass see patients?
- Medicare's clinician data lists 4 practice locations, including Northridge, CA, Wailuku, HI and Encino, CA. Call before your visit to confirm the address.
- What is Olga Lyass's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Olga Lyass accept Medicare assignment?
- Yes. Medicare's clinician data says Olga Lyass 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 Olga Lyass?
- (818) 435-1433, as listed in official Medicare / NPI Registry data.
- What is Olga Lyass's NPI number?
- 1134271067. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Olga Lyass works
Medicare's Facility Affiliation Data lists Olga Lyass at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Glendale Memorial Hospital & Health CenterGlendale, CA · Acute Care Hospital · CCN 050058
- Maui Memorial Medical CenterWailuku, HI · Acute Care Hospital · CCN 120002
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · CCN 050116
- Providence Saint Joseph Medical CenterBurbank, CA · Acute Care Hospital · CCN 050235
- St Mary Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050191
Practice locations
Addresses where Olga Lyass is enrolled with Medicare (CMS data updated 2026-10-02).
- 18436 Roscoe BlvdNorthridge, CA 91325 (818) 435‑1433
- 221 Mahalani StWailuku, HI 96793 (818) 435‑1433
- 4301 Grimes PlEncino, CA 91316 (818) 639‑2901
- 44105 15th W St, Suite 100Lancaster, CA 93534 (818) 435‑1433
Group practices
Medicare enrollment lists Olga Lyass as a member of these groups (CMS data updated 2026-10-02).
- Golden State Imaging Associates Inc239 clinicians in the group
- Renaissance Imaging Medical Associates Inc124 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Northridge
Clinicians with the same Medicare primary specialty in Northridge, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134271067 |
| 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