Dr. Miller has been practicing dentistry in Calvert County, Maryland, since 1983. He graduated from Gettysburg College in 1975 with a Biology degree, and from the University of Maryland School of Dentistry in 1981, with a Doctor of Dental Surgery degree.

Dr. Miller is a member of the American Dental Association, the Maryland State Dental Association, and the Patuxent Dental Society. He is a Fellow of the Academy of General Dentistry and has been Chairman of the Dentist Well-Being Committee of the MSDA since 2006.

Dr. Miller is active as an elder at Patuxent Presbyterian Church. He and his wife of nearly 20 years, Eileen, reside in Calvert County. Dr. Miller has two stepchildren, Luke and Rose (married to Rosio and Ray, respectively), and a yellow Labrador named Ranger. He enjoys boating on his Ranger 27 tug Dream and the pursuit of a spiritual life.