Timothy F. Walker, DDS, graduated from Creighton University School of Dentistry in 1985. From 1990-1995, he served as a dental officer in the U.S. Navy. He practiced dentistry privately from 1995-2009. He then had his residency in the University of Texas Health Science Center San Antonio Oral Maxillofacial Radiology (OMR) program and, in 2012, graduated with a certificate in OMR and an M.S. degree. Since 2012, he has held a full-time faculty position at Creighton and also has a private practice in OMR.