Dr. Wallis is a board-certified dermatologist and a member of the American Academy of Dermatology, Texas Medical Association, Bexar County Medical Society, Texas Dermatological Society, and Alpha Omega Alpha.

Dr. Wallis enjoys hiking, camping, running, riding bikes, home-brewing, fixing up cars, and playing guitar. His favorite part of his job is finding and treating skin cancer. If he could have a second occupation, he would be a biologist or work for a national or state park. He is never without his sunglasses and believes no one should be without a good facial sunscreen.