Dr. Allan Mark Effron, MD

Dr. Allan Effron is a gastroenterologist and internist with five decades of medical experience serving patients throughout Southern California. He earned his medical degree from Universidad Autonoma De Guadalajara Facultad De Medicina and completed his residency at UMDNJ. With 52 years in practice, Dr. Effron brings extensive expertise to the diagnosis and treatment of digestive system disorders and general internal medicine conditions. He is fluent in both English and Spanish.

Dr. Effron practices across multiple locations in California, including Norwalk, Huntington Beach, Los Angeles, Corona, and Monterey Park. His primary affiliation is with Coast Plaza Hospital, where he provides comprehensive gastroenterological care. With his dual specialization, he offers both specialized digestive health services and general internal medicine care to meet diverse patient needs throughout the region.