Dr. Christopher K. Co is a general surgeon with comprehensive training in both elective and emergency surgical care. Since August 2025, he has been practicing with Advance Surgeons Medical Group in Monterey Park, California, where he provides pre-operative, operative, and post-operative management across a broad spectrum of surgical conditions. His clinical expertise includes minimally invasive and open abdominal surgery, with advanced skills in laparoscopy and robotic techniques. He also has experience in trauma and emergency surgery and holds Advanced Trauma...

Dr. Clara K. Zhu is a general surgeon in private practice with Associated Surgeons of San Luis Obispo in Pismo Beach, California. Her practice includes abdominal wall, foregut, and colon surgery. She completed an Advanced GI/MIS and Bariatric Surgery Fellowship at the University of Texas at Houston, McGovern Medical School (August 2024–July 2025), where she also served as a Clinical Instructor of Surgery (August 2024–July 2025). Prior to fellowship, Dr. Zhu completed her residency in the Department of Surgery at...

Dr. Danny Lascano is a board-certified general surgeon practicing in California’s Central Valley. His clinical practice encompasses the full spectrum of general surgery, including hernias (inguinal, ventral, incisional), gallbladder and biliary disease, necrotizing soft tissue infections, and bowel perforation or other intra-abdominal pathology requiring emergency abdominal surgery. Dr. Lascano earned a B.A. in Biology from Swarthmore College and an M.D. from Columbia University Vagelos College of Physicians and Surgeons. He completed his general surgery residency at Westchester Medical Center /...

Dr. David E. Handman is a highly experienced trauma and acute care surgeon with specialized expertise in critical care medicine. With over two decades of medical practice, he has provided comprehensive surgical and critical care services across multiple institutions, including Level 2 trauma centers, intensive care units, and private surgical practices. Dr. Handman earned his B.A. in Genetics and Development from Cornell University and his M.D. from the Sackler School of Medicine in Tel Aviv, Israel. He completed his general...

Dr. David L. Coffman is an accomplished osteopathic physician and surgeon with a distinguished career spanning over 25 years in general surgery, trauma, and surgical critical care. He currently serves as Associate Dean of Clinical Education and Associate Professor of Clinical Sciences at Touro University College of Osteopathic Medicine-California (TUCOM-CA), overseeing the clinical training of third- and fourth-year medical students, managing curriculum development, and ensuring excellence across clinical rotations and affiliated sites. Dr. Coffman’s clinical expertise includes general, trauma, and...

Dr. James M. Tatum is a board-certified trauma, acute care, and critical care surgeon with over a decade of clinical, academic, and leadership experience. He currently serves as Director of the Surgical Intensive Care Unit at St. Francis Medical Center in Lynwood, California, where he also provides trauma and acute care surgery and surgical critical care. He additionally maintains active surgical staff appointments at Good Samaritan Hospital in Los Angeles, Kaiser Baldwin Park Medical Center, Long Beach Memorial Medical Center,...

Dr. Joseph Robert Lee is an academic clinical surgeon with nearly two decades of experience in complex hepato-pancreato-biliary (HPB) surgery, abdominal transplantation, graduate medical education, and translational research. He currently serves as an Associate Professor of Surgery at East Tennessee State University’s Quillen College of Medicine, where he has practiced since 2012. His clinical expertise includes the management of benign and malignant liver, pancreas, and biliary disease. Over his career, he has performed more than 100 pancreaticoduodenectomies and over 300...