Bariatric Surgery

Dr. Allen joins us from Kaiser Permanente West Los Angeles, where he developed a strong reputation for delivering high-quality, patient-centered surgical care. He brings extensive experience, advanced training, and is board-certified in general surgery, including a Foregut Surgery fellowship at Keck Medicine of USC, with additional specialization in robotic and bariatric surgery. Originally from the East Coast, Dr. Allen is excited to transition to a community-based setting where he offers comprehensive care across the full spectrum of general surgery. His practice will emphasize bariatric surgery and both upper and lower endoscopy, including EGD and colonoscopy, allowing for streamlined, continuity-driven care from diagnosis through treatment.

Dr. Nolan is a board-certified general surgeon with fellowship training in advanced minimally invasive and robotic techniques. He is proficient with the DaVinci robot and other minimally invasive techniques to perform complex surgeries, including hernia repairs, colorectal surgery, upper GI procedures, and bariatric surgery. He earned his medical degree from the Keck School of Medicine at the University of Southern California and completed his general surgery residency at Cooper University Hospital in Camden, N.J., along with a fellowship in advanced minimally invasive surgery at Alta Bates Summit Medical Center in Oakland. ​