Dr. Renneker used to be an oncologist at UCSF and then Cal Pacific before starting his research and patient advocacy practice. He founded it because he realized that there is far too much information about fighting cancer, and innovative treatments both in western medicine and in integrative treatments, for any doctor to stay on top of while practicing medicine full time. So Dr. Renneker stopped practicing as a doctor and dedicated himself to keeping abreast of treatment from all around the world for fighting cancer. He consults with patients, particularly those with serious or advanced cases of cancer, and helps them develop attack plans, find second opinions, and identify new treatments.