Dr. Tammy Wan is a nephrologist in Los Angeles, California and is affiliated with multiple hospitals in the area, including Kaiser Permanente South Bay Medical Center and Overlake Medical Center & Clinics. She received her medical degree from University of California, Davis, School of Medicine and has been in practice between 11-20 years. Dr. Tammy Wan has expertise in treating diabetes, among other conditions - see all areas of expertise. Dr. Tammy Wan accepts Medicare, Aetna, Blue Cross, Kaiser, United Healthcare - see other insurance plans accepted.