Alexander McMahon, DDS

Dr. John R. Pappas is an expert in oral and maxillofacial surgery with decades of experience. After earning his DDS from the University of the Pacific and completing his Oral and Maxillofacial Surgery Residency at UC Irvine and the Long Beach VA Medical Center, he also achieved his MD from the University of Southern California. Dr. Pappas is a Diplomate of the American Board of Oral & Maxillofacial Surgery. He is a currently an Adjunct Professor at the University of the Pacific School of Dentistry within the Department of Oral & Maxillofacial Surgery. With a commitment to high-quality patient care, Dr. Pappas brings compassionate and expertise to every case.

Dr. Mason Lee is a dual-degree professional with extensive expertise in oral and maxillofacial surgery. With degrees in Dentistry from the University of Illinois and Medicine from UCSF, Dr. Lee has honed his skills through rigorous training, including general surgery and oral maxillofacial surgery residencies at UCSF. A dedicated educator, he previously served as an Associate Clinical Instructor at UCSF's School of Dentistry, mentoring students in the oral surgery clinic. Dr. Lee is an active member of prestigious organizations such as AAOMS, ADA, and AMA.

Dr. Wenli Yu is a highly accomplished oral and maxillofacial surgeon with extensive education and experience in the field of dentistry. She holds a DDS degree from the University of Minnesota and a Ph.D. in Biomedical Sciences from Baylor College of Dentistry. Dr. Yu completed her OMFS residency at Highland Hospital, where she developed expertise in complex surgeries and patient care. Driven by a passion for advancing dental science, she has contributed to multiple research studies on craniofacial development and bone regeneration. Fluent in English and Mandarin, Dr. Yu is dedicated to providing compassionate, expert care tailored to each patient’s unique needs.