Quick answers
- Which hospitals does Sergey Lyass work at?
- Medicare's official clinician data lists Sergey Lyass at 4 hospitals: Cedar-Sinai Marina del Rey Hospital, Cedars-Sinai Medical Center, Providence Cedars Sinai Tarzana Medical Center and Valley Presbyterian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sergey Lyass see patients?
- Medicare's clinician data lists 2 practice locations, including Encino, CA and Los Angeles, CA. Call before your visit to confirm the address.
- What is Sergey Lyass's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Sergey Lyass accept Medicare assignment?
- Yes. Medicare's clinician data says Sergey 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.
- Does Sergey Lyass offer telehealth?
- Medicare's clinician data says Sergey Lyass offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Sergey Lyass?
- (310) 623-1786, as listed in official Medicare / NPI Registry data.
- What is Sergey Lyass's NPI number?
- 1316996911. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sergey Lyass works
Medicare's Facility Affiliation Data lists Sergey Lyass at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cedar-Sinai Marina del Rey HospitalMarina del Rey, CA · Acute Care Hospital · CCN 050740
- Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050625
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA · Acute Care Hospital · CCN 050761
- Valley Presbyterian HospitalVan Nuys, CA · Acute Care Hospital · CCN 050126
Practice locations
Addresses where Sergey Lyass is enrolled with Medicare (CMS data updated 2026-10-02).
- 4301 Grimes PlEncino, CA 91316 (310) 623‑1786
- 5901 W Olympic Blvd, Suite 309Los Angeles, CA 90036 (310) 623‑1786
Specialties
- General Surgeryprimary
Other general surgeons in Encino
Clinicians with the same Medicare primary specialty in Encino, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1316996911 |
| 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