Treatment Team Members 


Dr. Ryan Wetzler

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Dr. Ryan Wetzler is a licensed psychologist who has been treating sleep disorders, with particular expertise in insomnia since 2002. He developed Louisville’s only comprehensive cognitive-behavioral treatment program for insomnia (CBT-I) in 2004. The outcomes of his treatment program were highlighted at the annual meeting of the Associated Professional Sleep Societies meeting in 2009 

CBT-I is now recognized by the American College of Physicians, the National Institutes of Health, and the American Academy of Sleep Medicine as the first-line treatment approach for chronic insomnia. He is board certified in the practice of Behavioral Sleep Medicine (2005) and Clinical Health Psychology (2011). He became a Diplomate of the Board of Behavioral Sleep Medicine in 2018. Dr. Wetzler remains active in several professional organizations with past roles including President-Kentucky Sleep Society, President-Society of Behavioral Sleep Medicine, Chair-Insomnia section of the American Academy of Sleep Medicine, and Chair-American Academy of Sleep Medicine-Behavioral Sleep Medicine Course. He is currently a board member of the Kentucky Sleep Society. After working at a sleep disorders center for 14-years, he founded Sleep Health Center in 2018 to increase the availability of scientifically proven sleep and health psychology services. He has particular interest in the management of insomnia, circadian rhythm sleep disorders, parasomnias, headache, fibromyalgia, and cardiac conditions.



Dr. Spencer Dawson

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I am a licensed psychologist and am board certified in Behavioral Sleep Medicine. One of the things I like most about my work is being able to help people improve their lives through better sleep. It’s amazing to witness someone go from feeling controlled by their sleep problems to being confident in their ability to improve their sleep and cope with the bad nights that become fewer and fewer.

In addition to practicing with Sleep Health Center, I am on the faculty of Indiana University. Specifically, I am Assistant Clinical Professor and Associate Director of Clinical Training in the Department of Psychological and Brain Sciences. In that position, I am responsible for training and supervising doctoral students in the clinical science program. I am actively involved in national sleep organizations including the Society of Behavioral Sleep Medicine, Board of Behavioral Sleep Medicine, and American Academy of Sleep Medicine.




Ani Kesheshian, B.A.

Ani Keshishian is a clinical psychology doctoral student at the University of Louisville. She is also a graduate research assistant in the Eating Anxiety Treatment Laboratory at the University of Louisville where she works with Dr. Cheri Levinson. Ani is primarily interested in investigating the relations between eating disorder, depression, and anxiety symptoms. Clinically, Ani is interested in the use of cognitive-behavioral and exposure therapies to treat individuals with eating, anxiety, and mood disorders. She is currently conducting a research project examining the impact of different methods of delivering imaginal exposure therapy on eating disorder symptoms. Ani is pleased to be working under the supervision of Dr. Wetzler, and she hopes to learn more about the treatment of sleep and health conditions that commonly co-occur with other mental disorders. Outside of research and clinical work, Ani enjoys taking her dog on new adventures around Louisville. 




Shannon Park, M.A.

Shannon Park is a clinical psychology doctoral student at Spalding University. She is involved in the Advanced Clinical Track which allows her to have an integrated emphasis in both health and neuropsychology. She has recently received her Master’s of Arts degree in Clinical Psychology. She graduated Summa Cum Laude with a Bachelor’s of Science degree in Psychology from Chowan University in North Carolina. Shannon is from Hubert, North Carolina where she grew up with a parent in the marine corps. She is interested in working with military personnel in her career and is excited to get this experience as sleep health is something everyone could benefit from. Shannon works part time at a breakfast restaurant, plays soccer, and has a wonderfully crazy cat, Toulouse. She will be working under the supervision of Dr. Wetzler, and she looks forward to learning more about the treatment of sleep and health conditions and continuing her growth as an emerging clinician.