Based in the Los Angeles and Beverly Hills areas, Dr. Mark M. Davidson, MD has years of experience providing patients with the highest quality of gastroenterology. He is a graduate of David Geffen School of Medicine at UCLA and completed a three-year fellowship program with an emphasis on liver disorders at the UCLA affiliated Kaiser Permanente Medical Center. His areas of expertise encompass colonoscopy, ERCP, hepatitis, constipation, gallstones, GI conditions, hemorrhoids, and more.