The professionals at Northwest Arkansas Clinical Trials Center, PLLC maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest information concerning dermatology and clinical trials.

Cheryl A. Hull, MD

Medical Director of Northwest Arkansas Clinical Trials Center, PLLC and Hull Dermatology and Aesthetics

Dr. Hull has complimented her busy dermatology and aesthetics practice with a clinical trials center in order to offer her patients the opportunity to participate in clinical studies of new and emerging dermatology treatments. She has many years clinical trial experience having served as a principal investigator on more than 50 phase I-IV dermatology clinical trials.


Tom Davis, RPh, PharmD

Research Director

Tom Davis has been involved in more than 400 clinical trials in many therapeutic areas over the last 30 years. He has served as the principal investigator, sub-investigator, administrative support, and owner of two independent clinical trials centers.


Jenny Simmons, M.S., PAC

Jennie Simmons has more than 10 years’ of medical and surgical dermatology experience. She joined Hull Dermatology in 2016 and, under the direction of Dr Hull, has served as an investigator for many clinical trials. She has certifications for performing trial specific subject assessments.   


Kendall Key, PAC


Kendall Key, under the direction of Dr. Hull, has served as an investigator on many clinical trials over the past several years and has multiple certifications for dermatologic assessments that are required for the clinical trials.


Linda Yoder, MA

Clinical Research Coordinator

Linda Yoder has more than 10 years of clinical trials experience in multiple therapeutic areas. Her last 6 years have been focused on dermatology clinical trials and she has exceeded industry expectations in enrollment and subject retention.


Julie Filmer, MT

Clinical Research Coordinator

Julie Filmer Has several years of clinical trials experience including clinical services manager for the National Institutes of Health. She joined the Northwest Arkansas Clinical Trials Center team in 2015


Hillary Stevenson

Assistant Clinical Research Coordinator

Hillary Stevenson has five years of dermatology and aesthetics experience and has recently joined the clinical trials center team. She also brings more than five years of patient care experience as a nursing assistant.