http://www.waldenu.edu/Degree-Programs/Doctorate/PhD-in-Health-Services.htm - You can earn your Ph.D. in Health Services by enrolling online. To get started, find out what the prerequisites are to enroll in a health services Ph.D. degree. It is important to note that while an online Health Services degree program has its benefits, it also calls for discipline and commitment. Before pursuing Ph.D. health services studies, make sure you are prepared to commit to it.