Dr. William L Wallace specializes in clinical psychologist in Santa Maria area. Dr. William L Wallace has a medical practice at 1448 15th St, Suite 203, Santa Maria CA, and has over 39 years of experience in the field of medicine. He graduated from his medical school with his medical degree in 1978. Dr. Wallace is accepting new patients at his medical office and practice location in Santa Maria, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.