Dr. Mehdizadeh is board certified in gastroenterology, internal medicine and nutrition.  He obtained his Bachelors and Masters degrees from the University of California Los Angeles (UCLA) with both departmental honors and UCLA college of letters and sciences honors.  He was also awarded the prestigious UCLA Chancellor Service award for his contributions to the University.

He then attended the University of Rochester School of Medicine where he received commendations on his performance on two consecutive years.

He subsequently completed his residency in internal medicine at Cedars-Sinai Medical Center.  He was the recipient of the American Liver Foundation and the AASLD Resident Scholar Award.  Dr. Mehdizadeh then completed three years of specialty training in gastroenterology and liver disorders at the combined UCLA/Cedars-Sinai Medical Center program.

Dr. Mehdizadeh has been involved in numerous research projects and is published in several major journals (see publications). His research focuses on new and advanced endoscopic techniques. He has received a letter of recognition from the Journal of Gastrointestinal Endoscopy for his outstanding publication.  He also received the Senior Fellow Abstract Award and the Best Clinical Research Award by the American College of Gastroenterology.

Dr. Mehdizadeh is board certified in areas of gastroenterology, and diseases of liver.  He treats disorders of the esophagus, stomach, intestines, colon, gallbladder, liver, pancreas, and hemorrhoids. He places particular emphasis on prevention of cancers of the colon and esophagus.

Patient Choice 8Dr. Mehdizadeh greatly values the importance of nutrition in the treatment and prevention of disorders.  He is board certified by the American Board of Physician Nutrition Specialists.  He currently serves as an attending physician for the Metabolic Support Team and is an active member of the Nutrition Advisory Support Committee at Cedars-Sinai Medical Center.

Board Certifications

Diplomat, American Board of Gastroenterology & Hepatology
Diplomat, American Board of Internal Medicine
Diplomat, American Board of Physician Nutrition Specialists


Patient ChoiceEducation

2003-2006 UCLA & Cedars-Sinai Medical Center Combined Programs
Gastroenterology and Hepatology Fellowship
2000-2003 Cedars-Sinai Medical Center
Internal Medicine Residency
1996-2000 University of Rochester, School of Medicine
1992-1996 University of California, Los Angeles
                    Departmental Scholars Program – combined degrees, 1996:
                         M.A., Microbiology and Molecular Genetics

                         B. S., Biology (summa cum laude)1990-1992

Honors and Awards

2008 Clinical Instructor, UCLA David Geffen School of Medicine
2008 Gastroint. Endosc. letter of recognition, top 30 most highly cited article
2006 American College of Gastroenterology, Senior Fellow Abstract Award
2006 American College of Gastroenterology, Best Clinical Research Award
2001 American Liver Foundation & AASLD Resident Scholar Travel Award
1997 & 1998 Commendation on first and second year basic sciences performance
Summer 1998 International Medicine Fellowship—Spanish Training, Costa Rica
Winter 2000 International Medicine Fellowship—Clinical Neurology in Jagiellonian University, Kraków, Poland
1992-1996 UCLA College of Letters & Sciences honors, Departmental Honors in biology, and the UCLA Chancellor Service Award

Cedars Sinai


Board Certification

Diplomate, American Board of Gastroenterology
Diplomate, American Board of Internal Medicine
Diplomate, American Board of Physician Nutrition Specialists


Organization & Committee Memberships

  • Metabolic Support Team – Cedars-Sinai Medical Center
    • Team of specialized physicians involved in approving and
    • providing TPN orders for patients in hospital and at home
  • Nutrition Advisory Support Committee – Cedars-Sinai Medical Center
    • Team of physicians and registered dietitians who oversee
    • nutritional policy and govern the metabolic support team
  • American Gastroenterology Association
  • American College of Gastroenterology