He is the founder and medical director of Frontier Medical Institute in Lakewood and Aurora. Prior to moving to the Denver metro area, he spent 15 years as a community family doctor in the Colorado mountains, during which time he delivered almost 1,000 babies. He has been offering chelation therapy to his patients for over 11 years. Dr Grossman is a diplomate of the American Board of Chelation Therapy (ABCT) and a member of ACAM (The American Academy for Advancement of Medicine), IOMA (The International Oxidative Medicine Association) and A4M (The American Academy of Anti-aging Medicine). His special field of interest is nutritional medicine. Dr. Grossman has undertaken study of homeopathy and naturopathy and is licensed as a homeopathic medical doctor as well as a naturopathic medical doctor.
He authored The Baby Boomers' Guide to Living Forever and co-authored Fantastic Voyage: Live Long Enough to Live Forever.