Medical Clinic

Sarah Ferguson, M.D.


Amanda Ramos, FNP


John Casada, Ph.D, M.D. 

  • Dr. Casada graduated from ACU in 1984 with a B.S. in General Biology and in '85 with a M.S. in General Biology. He earned his Ph.D. in Neuroscience in '92 from UT Houston along with a M.D. also in '92 from UT Houston. He spent his Psychiatric Residency at University of Michigan as well as his post doctoral fellowship studying Posttraumatic Stress disorder. Dr. Casada came to ACU from UT San Antonio where he was a professor in the Department of Psychiatry. He also provided psychiatry services at South Texas Veterans Healthcare Center in San Antonio, Texas. Dr. Casada is Board Certified by the American Board of Psychiatry and Neurology. In 2003, Dr. Casada was listed as one of America's Top Physicians. He was also awarded in 1999 as the Outstanding Teacher in Outpatient Psychiatry. In 1995 he was awarded the Lilly Fellowship Award by the Society of Biological Psychiatry. Dr. Casada also serves as a professor in the ACU Psychology Department.


Cindy Gravitt, CPM 
Office Manager

  • Cindy has been part of our team since May 2011. She is a third generation graduate of ACU and loves being back on campus. She and her husband, Van, have four sons. Denver and Corey attend ACU while Caleb and Elijah are at Abilene Christian School.


Abby Pimentel 
Administrative Assistant