Medicine. Dr. Brennan continued his studies at A.T. Still University earning a Master of Public Health from the School of Health Management and a Doctor of Dental Medicine from the Arizona School of Dentistry and Oral Health (ASDOH). He continued his involvement at ASDOH after graduation as a full-time faculty member and currently serves as Associate Dean of Informatics, Innovation and Community Partnerships. Dr. Brennan is Course Director for Dentistry in the Community and an Assistant Professor for Treatment Planning and Medical Complexity.