Research Team

CMR has over 38 combined years of clinical trial experience which includes our team of highly trained coordinator staff to oversee all site activities.

Additional ancillary personnel includes:

  • Registered Dietician
  • Certified Diabetes Educator
  • Physical Therapist
  • Psychologist

viviana2Viviana Hargis, RN CCRC

Senior Research Coordinator

Viviana Hargis received her nursing degree from Chattanooga State Community College in 2001. She has been involved in conducting clinical trials for greater than 8 years. Her therapeutic expertise areas are obesity, diabetes, fibromyalgia, hot flash and hpv vaccine and insomnia.

Viviana is CITI and ACRP certified. She has a commitment to quality in clinical research.

kamri2Kamri Chester, B.S.

Clinical Research Coordinator

Kamri received her Bachelor of Science Degree in Biology from the University of Memphis, Memphis, TN. She started her internship the summer of 2008. Kamri is focusing on the following clinical trials oral contraceptives, HPV and Type II Diabetes. She has received CITI & Bio Hazard Shipping training.

brooke2Brooke Sigler, CMA

Clinical Research Coordinator

Brooke Sigler, carries a Medical Assistant Certification. She has worked in the women’s health area since 2006. Her research coordinating experience includes oral contraceptives, upper respiratory infection, intrauterine device and various other therapeutic areas. She previously held the position of Regulatory Specialist and Administrative Assistant.

rejeana-144x150Rejeana Ricks

Clinical Research Coordinator

Rejeana  rejoined the Chattanooga Medical Research team in 2014.  She was previously employed at CMR for 4 years before she relocated to North Carolina.  She has been in the research arena for a total of 12 years.  She is presently involved in Women’s Health Studies. She has completed all required training and certification to conduct pharmaceutical trials.

Koti Nordy, B.S.

Clinical Research Coordinator

Koti joined our research team in 2017 as a clinical research coordinator.

She graduated from the University of Tennessee at Chattanooga with a Bachelors in Science in General Biology. She has completed all the required training to conduct clinical trials.  Also, she is presently involved in various Women Health Trials. Koti says “she loves how science is always changing and improving the lives around us-and what better way than through clinical research.”

In her spare time, she enjoys doing home improvement projects and spending time with family.

seth2Jonathan (Seth) Mayberry, BA, CCRC

Seth Mayberry received his Bachelor of Arts in Biology, with a concentration in Health Professions, from Covenant College. He has been involved in several clinical research studies in a variety of areas, including treatment of Acute Surgery-Related Pain, Diabetes, and Women’s Health. Seth’s eventual goal is to research and develop non-drug therapies for medical conditions that are otherwise expensive or dangerous to treat.


marina2Marina Dunayeva, BA, CCRC

Marina has recently received her Bachelor’s degree in Biology from Covenant College. She is eager to continue pursuing her love for science and its methodologies through clinical research.  She is presently involved in GI and Women’s Health Trials. Also, Marina has completed all the required training to conduct clinical trials.  In her spare time, she enjoys reading and visiting her family in sunny Florida.


jasmineJasmine Garner, Intern

Jasmine is a devoted intern of 3 years. She faces every task with hope, knowledge, and determination and has a will for problem solving. Jasmine takes pride in her work and is always looking to learn more from others. She hopes to pursue a career in which she can express her leadership abilities along with the interest she has in biology. Jasmine’s experience at Chattanooga Medical Research, LLC , has helped her recognize her talents.