Babak N. Rad, MD

Babak (Bobby) Rad, M.D., is a colon and rectal surgeon at Hoag Family Cancer Institute. He treats the full spectrum of anorectal (hemorrhoids, anal fissures, fistulas) and colon diseases (colon cancer, diverticular disease) and is especially interested in the treatment of colon and rectal cancer. Dr. Rad is a strong proponent of and advocate for … Continued

Kevin Lin, MD

Dr. Kevin Lin is a Board-certified radiation oncologist practicing at the Hoag Irvine location. He completed medical school at the UCLA School of Medicine and also completed his residency in Radiation Oncology at UCLA. Dr. Lin believes in the importance of treating the patient as a whole, rather than just a cancer diagnosis, while practicing … Continued

Richard G. Quist, MD

“I think we learn from medicine everywhere that it is, at its heart, a human endeavor, requiring good science but also a limitless curiosity and interest in your fellow human being, and that the physician – patient relationship is key; all else follows from it.” -Abraham Verghese, MD Doctor Richard G. Quist, MDWhen Dr. Richard … Continued

Sarah M. Kauffman, MD

Dr. Sarah Kauffman serves as the physician director for the Hoag Maternal Mental Health Program, treating our pregnant and postpartum patients. She is a Columbia-trained, board-certified psychiatrist who specializes in reproductive and forensic psychiatry. She is originally from San Diego and completed her medical training at the University of California, San Diego (UCSD). She then … Continued

Surinder S. Saini, MD

As a Gastroenterologist, I strive to heal my patients back to their optimal GI health. I use both clinical acumen and state of the art technology to diagnose and treat GI disorders. My initial post-graduate medical training was in England, followed by Gastroenterology Fellowship at the world-renowned Mount Sinai School of Medicine in New York … Continued

Josh M. Randall, MD

I enjoy getting to know my patient’s background. I learn a lot from each patient about a variety of different issues. I am fascinated by the diversity that the field of Urology has to offer. Many conditions can be treated medically in the office. There are also many surgical options that can be offered to … Continued

Navneet K. Singh, DO

Kambiz Vahabzadeh, MD

Dr. Kambiz Vahabzadeh, also known as “Dr. V”, grew up in Palos Verdes, California. He comes from a medical background. His mother was a CCU nurse. His father was a cardiologist and had a cardiology practice in Beverly Hills for nearly 30 years. He used to go to the hospital with his father, always looking … Continued

Sepideh Kazemi, MD

Dr. Kazemi earned her medical degree in top 5% of her class from Iran University of Medical Sciences in 1994. She completed her residency in Internal Medicine, and fellowship in Cardiovascular disease both at University of Wisconsin/ Milwaukee. Then she went to fellowship in Interventional Cardiology at St Luke’s Hospital/University of Wisconsin/ Milwaukee, where she … Continued

Yaser Homsi, MD

Yaser Homsi, M.D., is a medical oncologist and hematologist at Hoag Family Cancer Institute. He is triple-board certified in hematology, medical oncology and internal medicine. At Hoag, Dr. Homsi treats breast cancer and general hematology and oncology. Dr. Homsi was in medical school when his mother was diagnosed with Stage 4 stomach cancer and died … Continued