Christopher G. Halliday, DDS, MPH

Chris Halliday, DDS, MPH, is the inaugural dean of the Missouri School of Dentistry & Oral Health, A.T. Still University’s new dental school located on the Kirksville, Mo., campus.

Dr. Halliday, a rear admiral in the U.S. Public Health Service (USPHS), served as assistant surgeon general and chief of staff to the surgeon general of the United States (Dec. 2008-May 2012). His experience includes serving as director and chief dental officer of the Indian Health Service and chief professional officer of the dental category. During his term as chief dental officer of the USPHS, Dr. Halliday coordinated the delivery of oral health services by the Commissioned Corps Dental Officers from the Department of Health and Human Services, Department of Justice, and Department of Homeland Security.

He received his doctor of dental surgery from Marquette University School of Dentistry (1987) and his master of public health from the University of North Carolina-Chapel Hill School of Public Health (2002).

Dr. Halliday has dedicated his professional life to serving underserved populations. He worked in diverse areas such as Barrow, Alaska, for three years and on American Indian reservations in New Mexico and Arizona for seven years. Dr. Halliday held policy-making positions in Washington, D.C., for 13 years, bringing dental and medical services to people who would otherwise not receive them.

Dr. Halliday is the recipient of numerous awards and honors from the Public Health Service and Indian Health Service, including an Isolated Hardship Award, a Commendation Medal, an Outstanding Service Medal, and the Surgeon General’s Exemplary Service Medal.

He is also a member of the Commissioned Officers Association, American Dental Association, American Association of Public Health Dentistry, American Dental Education Association, and a fellow in the American College of Dentists.

Wayne W. Cottam, DMD, MS

Wayne W. Cottam, DMD, MS, is vice dean at A.T. Still University’s Missouri School of Dentistry & Oral Health (ATSU-MOSDOH). He also serves as associate dean of community partnerships at ATSU’s Arizona School of Dentistry & Oral Health (ATSU-ASDOH) where he develops and oversees the external rotation program and other student community activities and partnerships, as well as teaches head and neck anatomy. Prior to his current positions, he was the dental director with Community Health Centers in Salt Lake City, Utah.

Dr. Cottam graduated from the University of Utah (1990) and received his DMD from Oregon Health Sciences University (1993). He completed an advanced education in general dentistry program at the University of Utah Hospital and completed a one-year associateship in private practice. In 1995, he re-opened an urban Indian dental clinic, running that program until joining Community Health Centers. During that time he received a master’s degree in anatomy from the University of Utah Medical School.

Mary Elizabeth Kaz, MS, EdD

Mary Elizabeth “Liz” Kaz, MS, EdD, is associate dean for education and assessment at A.T. Still University’s Missouri School of Dentistry & Oral Health (ATSU-MOSDOH). She received her doctorate from Nova Southeastern University (2010) and completed undergraduate studies in dental hygiene education and dental hygiene at University of Missouri-Kansas City (1986-87).

Prior to joining MOSDOH, Dr. Kaz was a dental hygiene faculty member at Johnson County Community College in Overland Park, Kan., and served 14 years as residential faculty and director at the School of Dental Hygiene, Maricopa County Community College District, and six years as dental hygiene faculty at Rio Salado College.

Dr. Kaz has extensive experience in developing and implementing dental hygiene programs and in working with accrediting bodies. She also works as a consultant, most recently for the American Dental Association (ADA) and Arizona Board of Dental Examiners.

She is currently affiliated with the Kansas Dental Hygienists’ Association, American Dental Hygienists’ Association, and American Dental Education Association. She also holds committee memberships with ADA.

Allison Crutchfield, DMD

Allison Crutchfield, DMD, is director, pre-clinical education and simulation clinic, at A.T. Still University’s Missouri School of Dentistry & Oral Health (ATSU-MOSDOH). Dr. Crutchfield is a 2009 graduate of ATSU’s Arizona School of Dentistry & Oral Health (ATSU-ASDOH) where she also received a certificate in public health. She completed her undergraduate studies in biology at the University of Michigan in Ann Arbor.

Since 2009, Dr. Crutchfield has served as pre-clinical faculty at ASDOH, providing hands-on, individual student instruction and developing educational content. She also served as supervising dentist for Mesa Community College’s dental hygiene program (2009-12). Dr. Crutchfield is experienced in clinical practice and provides comprehensive family dentistry to her patients in her home state of Michigan.

Dr. Crutchfield is actively involved with student community service, most recently serving as faculty supervisor for the Arizona Oral Cancer Walk and the American Student Dental Association Pre-Dental Day at ASDOH. She holds professional affiliations with the Academy of General Dentistry, American Dental Association, and Arizona Dental Association.

Dale F. DeWan, DMD, MS

Dale F. DeWan, DMD, MS, is director, integrated human sciences, at A.T. Still University’s Missouri School of Dentistry & Oral Health (ATSU-MOSDOH). Dr. DeWan has practiced dentistry since 1984 at St. John’s Dental Arts Clinic (Portland, Ore.), Kaiser Permanente Dental Associates Clinic (Vancouver, Wash.), and in private practice for 20 years (Gresham, Ore.). He retired in 2005.

He received his DMD from Oregon Health Sciences University (1984) and completed his graduate studies in comparative immunology at Oregon State University (1978). He has been professionally affiliated with the American Dental Association, Oregon Dental Association, and Academy of General Dentistry.

Dr. DeWan brings extensive teaching experience to his role at MOSDOH. He has served as adjunct instructor in the dental simulation clinic and for the head and neck module at ATSU’s Arizona School of Dentistry & Oral Health. Since 2009 he has taught anatomy and physiology for the Allied Health Program and dental anesthesia for the Hygiene Program at Pima Community College in Tucson, Ariz. Prior to that he gained valuable teaching experience as a guest lecturer and laboratory instructor at Oregon State University (1974-80).


Melissa Parman, B.A., Executive Assistant


Brooke Robinson, BS, Educational Specialist

Katie Moore, B.S., Senior Administrative Assistant KDmoore@atsu.edu


Kristin Blunk, BS,
Director, Academic Services & Support