Dr. Mehdizadeh combines his expertise in gastroenterology, endoscopy, internal medicine and nutrition to offer a well-rounded approach in the care of his patients.

Our goal is to promote health through disease prevention, early detection, and high-quality treatment in a compassionate and supportive environment.

Our practice is unique because we spend a lot of time with our patients and their families. We believe that patients do better when they are well-informed and educated about their health. We combine alternative medicine, nutrition and lifestyle with western medicine and state-of-the art technology in procedures to achieve the best outcomes.

Dr. Mehdizadeh is not only an expert in procedures such as endoscopy and colonoscopy, but also performs advanced therapeutic endoscopy to treat diseases of the bile duct, liver, pancreas and cancers of the esophagus, stomach and colon.

Dr. Mehdizadeh has over 40 publications in original research and collaborates with colleagues at Cedars-Sinai Medical center and other renowned physicians the country.


Conditions We Treat

Cancer Prevention

Prevention is the best way to promote health. Early detection saves lives. Many disorders of the digestive tract such as cancers of the colon, rectum and esophagus are easily preventable and may be curable if diagnosed early. For example, removing colon polyps by colonoscopy reduce the risk of colon cancer. Treatment of acid reflux (GERD) and proper evaluation by an upper endoscopy can decrease the risk of esophageal cancer. Eradicating bacteria called H. pylori can reduce the risk of gastric cancer. As a gastroenterologist, Dr. Mehdizadeh specializes in prevention, diagnosis and treatment of common and rare gastrointestinal cancers.

Colorectal Cancer Prevention


Gastric Cancer


Esophageal Cancer


Gastroesophageal Reflux

What is a Gastroenterologist?

A gastroenterologist is more than just a stomach doctor. The field of gastroenterology is concerned with almost any organ that is involved with digestion of food. Dr. Mehdizadeh, a Los Angeles gastroenterologist, diagnoses and treats problems with the esophagus, stomach, small intestine, colon, liver, gallbladder, and the pancreas. Gastroenterologists perform procedures such as colonoscopy, upper endoscopy, and Pillcam capsule endoscopoy. Some of the common conditions treated by gastroenterologists include acid reflux (GERD), irritable bowel syndrome (IBS), abdominal pain, bloating, Celiac disease, rectal bleeding, and detection of colon polyps.

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Your treatment will be performed by licensed therapist. Schedule your appointment now!

Cedars-Sinai Medical Center Department of Gastroenterology Ranked among the best in United States in 2018

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Dr. Shahab Mehdizadeh is proud to be an Attending Physician and Gastroenterologist at the Cedars-Sinai Medical center ranked #3 in the country by the US News & World Report

Year after year, Cedars-Sinai Medical center has been ranked among the top 5 gastroenterology programs in the country. The gastroenterology department is ranked Excellent in advanced technologies, patient services and treatment of a high volume of high-risk patients with gastrointestinal disorders over the past three years. In addition, Cedars-Sinai Medical Center is once again on the prestigious Best Hospitals Honor Roll for the 2018-2019 as one of the top 10 best hospitals in America (#8 for 2018-2019).

Dr. Mehdizadeh provides high quality care in a personal and private outpatient setting.   He also attends patient with complex medical problems hospitalized at Cedars-Sinai medical center on a daily basis.