Dr. Jennings was born in the San Joaquin Valley and grew up on a farm in the Ozarks of Missouri. There he learned the value of a hard days work, and the virtue of honesty. He returned to California at the age of 15 to finish high school in Manteca, California. He graduated from the University of Pacific, Stockton, California and attended their dental school in San Fransicso.
Dr. Jennings practiced as a general dentist for ten years before specializing in dental orthopedics. His practice is primarily devoted to applications of dental orthopedics in the treatment of TMJ, dental medicine, sleep apnea, movement disorders, and developmental disorders.