34 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lyass, Surgeon in Los Angeles, CA?
Dr. Sergey Lyass, MD is a Surgeon, who primarily practices in Los Angeles, CA with 1 additional practice location. He has been practicing for over 34 years and is board certified by the American Board of Surgery. Dr. Lyass graduated from Second Tashkent State Medical Institute and completed his residency at Cedars-Sinai Medical Center. Dr. Lyass is fluent in English and Hebrew, and is currently seeing new patients. Dr. Lyass’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lyass’s office at (310) 623-1786.
What are Areas of Expertise for Dr. Lyass?
Dr. Sergey Lyass, MD is a highly-rated, board-certified Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Lyass empowers patients to confidently navigate their health journey, specializing in Bariatric/Obesity Surgery, Gastric Bypass, Gastric Sleeve, Robotic Surgery, or comprehensive wellness support. Serving the Los Angeles/CA community, Dr. Lyass is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Lyass go to medical school and complete their residency?
Residency: Cedars-Sinai Medical Center
Medical School: Second Moscow Medical Institute N. I. Pirogova | Second Tashkent State Medical Institute
Is Dr. Lyass board certified in Surgeon?
Yes, Dr. Sergey Lyass, MD is board certified by the American Board of Surgery
What languages does Dr. Lyass speak?
Dr. Lyass and their clinical team can communicate with patients in the following languages:
English
Hebrew
What conditions does Dr. Lyass treat?
As a Surgeon, Dr. Lyass diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Lyass. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Severe Obesity
- Obesity
- Helping Your Child Who Is Overweight
- Take Charge of Your Health: A Guide for Teenagers
- Understanding Adult Overweight & Obesity
- Body Weight
- Morbid Obesity
- Extreme Obesity
- Class 3 Obesity
- High Body Mass Index
- Excess Weight
- Being Overweight
- High BMI
ICD-10 Codes:
- E6601: Morbid (severe) obesity due to excess calories
- Z684: Body mass index [BMI] 40 or greater, adult
- E669: Obesity, unspecified
Also known as:
- Right Upper Abdominal Pain
- Right Lower Abdominal Pain
- Upper Middle Abdominal Pain
- Abdominal Pain
- Pelvic Pain
- RUQ pain
- Pain in upper right stomach
- Right upper belly pain
- Pain in lower right belly
- RLQ pain
- Right-sided lower abdominal discomfort
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1011: Right upper quadrant pain
- R1031: Right lower quadrant pain
- R1013: Epigastric pain
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Gallstones with Acute and Chronic Gallbladder Inflammation
- Gallstones with Chronic Gallbladder Inflammation
- Bile Duct Disease
- Gallstones
- Mixed cholecystitis with gallstones
- Acute and chronic gallbladder attack
- Chronic cholecystitis with gallstones
- Long-term gallbladder inflammation
ICD-10 Codes:
- K8012: Calculus of gallbladder with acute and chronic cholecystitis without obstruction
- K8010: Calculus of gallbladder with chronic cholecystitis without obstruction
Also known as:
- Intestinal Obstruction
- Intestinal Adhesions
- Bowel Obstruction
- Blocked Intestines
- Gut Blockage
- Bowel Adhesions
- Scar Tissue in Intestines
- Abdominal Adhesions
ICD-10 Codes:
- K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
- K5650: Intestinal adhesions [bands], unspecified as to partial versus complete obstruction
Also known as:
- Diaphragmatic Hernia
- Groin Hernia (One Side)
- Hernia
- Inguinal Hernia
- Hiatal Hernia
- Hernia of the Diaphragm
- Unilateral Inguinal Hernia
- Single Groin Hernia
- Hernia in One Groin
ICD-10 Codes:
- K449: Diaphragmatic hernia without obstruction or gangrene
- K4090: Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
Also known as:
- Bariatric Surgery Status
- Weight Loss Surgery
- Weight-loss (Metabolic & Bariatric) Surgery
- Weight Loss Surgery History
- Gastric Bypass Status
- Sleeve Gastrectomy Status
ICD-10 Codes:
- Z9884: Bariatric surgery status
Also known as:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
Also known as:
- Nonalcoholic steatohepatitis (NASH)
- Fatty Liver Disease
- Non-alcoholic fatty liver disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NASH
- Non-alcoholic fatty liver disease with inflammation
- Fatty liver inflammation
ICD-10 Codes:
- K7581: Nonalcoholic steatohepatitis (NASH)
Also known as:
- Acute Appendicitis with Localized Abdominal Infection
- Appendicitis
- Peritoneal Disorder
- Appendicitis with Local Peritonitis
- Localized Abdominal Infection from Appendix
- Early Appendicitis with Infection
ICD-10 Codes:
- K3530: Acute appendicitis with localized peritonitis, without perforation or gangrene
Also known as:
- Acute pain after medical procedure
- Pain
- Acute post-operative pain
- Pain after surgery
- Post-procedural pain
ICD-10 Codes:
- G8918: Other acute postprocedural pain
Also known as:
- Biliary Acute Pancreatitis
- Pancreatitis
- Gallstone Pancreatitis
- Bile Duct Related Pancreatitis
ICD-10 Codes:
- K8510: Biliary acute pancreatitis without necrosis or infection
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Which procedures does Dr. Lyass perform as a Surgeon?
As a Surgeon, procedures performed by a Dr. Sergey Lyass may include:
- Abdominal Wall Reconstruction
- Amputation
- Appendicitis / Appendectomy
- Brain Aneurysm Treatment
- Brain Surgery
- Brain Tumor Evaluation
- Central Line Placement
- Cerebral Shunt
For detailed information, please contact Dr. Lyass' office.
Does Dr. Lyass accept my insurance?
Dr. Lyass accepts most major insurance plans. Important: Please call our office at (310) 623-1786 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lyass accept in Los Angeles, CA?
Dr. Lyass in Los Angeles, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Shield of California
Centene
City of Los Angeles
Elevance Health Inc. (formerly Anthem)
Medicaid
Medicare
Other Health Care Provider
Preferred IPA
State of California
UnitedHealthcare
View All Insurances
Where is Dr. Lyass' office located?
Dr. Sergey Lyass' Primary Practice
5901 W Olympic Blvd Ste 309
Los Angeles, CA 90036
(310) 623-1786
What is Dr. Lyass's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lyass's National Provider Identifier (NPI) number is 1316996911.
What common questions do patients ask about Dr. Lyass?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lyass
What is Dr. Sergey Lyass's specialty?
Dr. Lyass is a Surgeon near Los Angeles, CA. General surgeons are experts in diagnosing and managing surgical conditions which includes preoperative, operative, and postoperative care, as well as addressing complications. Their expertise include the areas such as the alimentary tract, breast, abdomen, skin and soft tissue, endocrine system, head and neck, pediatric surgery, surgical critical care, surgical oncology, trauma, burns, and vascular surgery. General surgeons increasingly utilize minimally invasive and endoscopic techniques to provide proper care. In addition to this, many general surgeons have expertise in transplantation, plastic, and cardiothoracic surgery. Contact Dr. Lyass to book an appointment today.
Is this Dr. Sergey Lyass affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Lyass is affiliated with Cedars-Sinai Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Surgeon?
Explore Surgeon with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Sergey Lyass accepting new patients in Los Angeles, CA?
Yes, Dr. Sergey Lyass is accepting new patients at this time.
Does Dr. Sergey Lyass offer online booking?
Please contact Dr. Lyass's office at (310) 623-1786 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Sergey Lyass?
Please contact Dr. Lyass's office at (310) 623-1786 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Sergey Lyass have?
Dr. Sergey Lyass is certified by the American Board of Surgery.
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