Browse Health
Dr. Sergey Lyass, FACS
Surgical Specialist
27 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Sergey Lyass is Excellent. Dr. Lyass has been reviewed by 6 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.8
Promptness 3.4
Courteous Staff 4.0
Accurate Diagnosis 4.0
Bedside Manner 3.4
Spends Time with Me 3.8
Follows Up After Visit 3.5

Specialties & Research

Dr. Sergey Lyass, FACS, MD is board certified in Surgery.

  • He has special expertise in 4 areas:
  • Gastric Bypass (Gastrojejunostomy)
  • Laproscopic Surgery (Laparoscopy)
  • Liver Transplantation
  • Weight Loss Surgery (Bariatric Surgery)

Education & Awards

Dr. Lyass graduated from Second Moscow Medical Institute.


Dr. Lyass has 8 hospital affiliations:

  • Glendale Adventist Medical Center/Adventist Health 
  • Sherman Oaks Hospital and Health Center 


  • Hebrew
  • Russian
  • English

> > > > Dr. Sergey Lyass, FACS, MD

Similar doctors nearby

Dr. Rajeev Rao

Vascular Surgery
15 years experience
Los Angeles, CA

Dr. Daniel Dunkelman

39 years experience
Los Angeles, CA

Dr. Robert Wilson

Orthopaedic Surgery
30 years experience
Los Angeles, CA

Dr. J Cohen

48 years experience
Los Angeles, CA

Dr. Alexander Angerman

Orthopaedic Surgery
38 years experience
Los Angeles, CA

Dr. David Cossman

Vascular Surgery
41 years experience
Los Angeles, CA
Search All Similar Doctors
Additional Information
Dr. Sergey Lyass FACS and MD is a male Surgeon, has 27 years of experience and practices in Surgery.
Where does Dr. Sergey Lyass practice?
Dr. Sergey Lyass has 3 office locations.
Dr. Sergey Lyass practices Surgery near Los Angeles, CA.
Additional practice locations include: Glendale, CA and Marina del Rey, CA.
See Los Angeles Surgeons.