Dr. Gean has been board-certified in Occupational Medicine for over 30 years. He has MBA and MS Toxicology degrees, is an ACOEM Fellow, and is lead author of The Pocket Drug Guide and The Index of Prescription Drugs.
On volunteer faculty at the University of California, Irvine (UCI), he has worked in the oil and gas, aerospace, chemical, mining, entertainment and insurance industries. He has consulted with the County of Los Angeles, Teva Pharmaceuticals, and the Academy of Motion Picture Arts and Sciences.