He has a company that markets high-powered herbal and mineral supplements. He also develops therapeutic protocols for people who suffer from serious health problems. He saved his own life with the help of such a protocol. 'Doc David' is not merely a commercial distributor of supplements; he also carries out high-tech research, laser treating certain herbal extracts with selected frequencies, and creating therapeutic combinations in order to reverse 'irreversible' conditions. Discussing a health condition with Dr. Wheeler is like entering a seminar on the cutting edge achievements of today's alternative medicine.