Goodyear started out as a gynecologist and pelvic floor surgeon. Once out of residency, however, he noticed that a lot of what he'd been taught in medical school didn't work. Then, in 2006, he developed pheochromocytoma, a rare type of tumor that develops in the adrenal gland, causing it to excrete high amounts of norepinephrine, which in turn causes extremely high blood pressure and heart rate.
That experience pushed him to make the transition into the field of cancer. The last five and a half years, he's been working with Brio-Medical, a holistic cancer clinic in Scottsdale, Arizona, of which the last six months he has served as medical director. He works with four other physicians — two medical doctors and two naturopathic physicians.