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Research Team

Offering the latest, most advanced options available through clinical trials, our Memphis team is committed to your well-being.

Kelly Iskiwitz, BS | Administrative Director

Kelly joined CNS Healthcare during 2003 as a Research Assistant. She has gained extensive experience in all areas of research and clinical trials including data entry, intake, psychological testing, regulatory and QA. She currently oversees all of these areas and is our liaison with our sponsors and monitors.


Sandra Woods | Office Manager

Sandra joined the team in 2019 and is the smiling face that greets our patients. Prior to CNS Healthcare, Sandra worked for 17 years in Case Management/Social Work at St. Francis Hospital. She is a graduate of Southside High School and Memphis Area Vocational School. 

Charles Grandberry, BS, EMT | Triage Manager

Charles joined our team in 2013 as our Patient Access Manager, responsible for managing all intake activity in the office and supporting our site with community outreach. Charles comes to us with nine years of experience in healthcare management. Charles has a Bachelor’s degree in Business Management and Organizational Development, and is also trained as an Emergency Medical Technician by the United States Military.

Courtney S. Hale, LPN | Clinical Research Coordinator

Courtney joined us in 2015 as a Clinical Research Coordinator. She has over 4 years of experience as an LPN, having worked in many different healthcare settings in the Memphis area. Courtney has worked with multiple diagnoses including depression, anxiety, ADHD, pain, bipolar disorder, diabetes, as well as many GI-related disorders. She is also experienced in many diagnostic evaluations and rating scales used in clinical research.

Debra O'Brien, RN, BSN | Clinical Research Coordinator

Debra joined our team in 2016 as a Clinical Research Coordinator in our Memphis, TN office. Debra has over 18 years of nursing experience ranging from neurotrauma, cardiovascular surgery, med/surge ICU, emergency room RN, cardiac stepdown, and being a school nurse.

Linda Byrd, RN | Clinical Research Coordinator

Linda joined the team in 2016 as a Clinical Research Coordinator. She is a Registered Nurse and has over 8 years of inpatient and outpatient nursing experience, including addiction, emergent care, general psychiatry, chronic pain, endocrinology, plastic surgery, and gastroenterology. She received her nursing degree from Northwest Mississippi Community College.

Robyn Presley, BS | Clinical Research Coordinator

Robyn joined us in 2001 as a Clinical Research Coordinator. During 1988 she began her career in research as a Research Coordinator for numerous diseases of the central nervous system. She graduated from Southwest Baptist University with degrees in psychology and sociology. Her graduate work at the University of North Texas was in Counseling Psychology with an emphasis on aging. She is the past President of the Memphis chapter of the Alzheimer's Association.

Shannon Howard, BSN, RN | Clinical Research Coordinator

Shannon began working in the healthcare field in 2001. She has experience caring for children and adults in clinical, medical and psychiatric inpatient and outpatient settings. She holds a RN from St. Joseph Hospital School of Nursing and a BSN from Western Governor's University. 

Kattrina Miller-Roach, PhD, LPC | Clinical Research Coordinator

Kattrina holds a PhD in Counselor Education/Leadership and Supervision from the University of Mississippi. She completed undergrad work at Mississippi State University where she earned a BA in Sociology and at Delta State University where she earned a MS in Education-Community Counseling/Play Therapy. She has a great deal of experience including working as a private practitioner, Lead Clinical DBT Therapist, Clinical Director of Addiction, Counseling Center Director, University Instructor, and Foster Care Director. With nearly 20 years of experience in inpatient and outpatient care, she brings a diverse skill-set to the CNS Healthcare team. 

Rosalyn Daniels, BS, MS | Research Assistant

Rosalyn joined our team in 2018 and has a Bachelor of Science in Psychology from Mississippi State University and a Masters of Science in Clinical Mental Health Counseling from Walden University. She has over 6 years of clinical experience in mental health and behavioral health. She has worked in hospital settings, private practice, and state agencies where she primarily focused on depression, anxiety, substance abuse, and adults with intellectual disability with co-occurring psychiatric diagnoses. 

Tavia Flagg | Research Assistant

Tavia joined the team in November 2016. In 2007, she attended High Tech Institute and completed training as a Phlebotomist. She has over eight years of clinical experience, working with people living with autoimmune and pain/inflammatory related disorders, as well as working in research and clinical trials.

Vanessa Wheeler, BS, MSED | Research Assistant

Vanessa joined CNS Healthcare in February 2017. She attended The University of Memphis and received a Bachelor of Science degree in Education and a Master of Science degree in Instruction and Curriculum Leadership. Vanessa spent  14 years as an educator and is now responsible for inputting and maintaining quality research data.

Irene Woods-Powell, CNA | Research Assistant

Irene joined the team in 2010 as a research assistant. In 1992 she worked as a CNA, where she gained experience in patient care. Following her dream to work in the healthcare field, she went back to school and graduated with honors as a MA. She now inputs 99% of the EDC information as well as efficiently serves as lab support. She is happy to be gaining extensive experience in research working with such a great team.

Kelsey Evans, BS | Research Assistant

During 2017 Kelsey joined the team as a research assistant. Kelsey holds a BS in Psychology and a minor in Bible and Ministry from Harding University. She has experience working with child, adolescent and adult populations. Her clinical skills include collection of vital signs (including opthalmic blood pressure), ECG's and cognitive assessment. She is a member of the American Psychological Association, National Alliance on Mental Illness, and Psi Chi Honor Society.

Reagan A. Boone, BS | Research Assistant

Reagan holds a Bachelor of Science in Kinesiology from the University of Tennessee at Knoxville. She received professional training at East Tennessee Children's Hospital and LeBonheur Children's Hospital. Prior to joining CNS Healthcare, she worked as an Elementary School Clinic Care Provider.

Lakeshia Pipkin, MA, BA | Research Assistant

Lakeshia joined the CNS Healthcare team in 2018 as a Research Assistant. She holds a Master of Arts in Education from Union University and a Bachelor of Arts in English from University of Memphis. She worked in customer services for twelve years before joining the team. 

Stephanie Maurey | Regulatory/QA Specialist

Stephanie has been a member of the CNS Healthcare team since November of 2008. As the QA/Regulatory Specialist, Stephanie provides continuous quality oversight for both data collection and regulatory compliance.

Penny McCracken | Intake Specialist

Penny joined CNS Healthcare in 2017 as Intake Coordinator. Prior to joining the team, Penny worked for 12 years in Plastic Surgery as a Patient Coordinator and later as Office Manager. Penny is results-oriented with strong customer service and organizational skills. She is passionate about her work performance and committed to providing an exceptional patient experience.

Brandi Gruber, BS | Community Relations Manager

Brandi joined the team in 2014 as the Community Relations Manager. She received a Bachelor's degree in Marketing Management from Arkansas State University and has 10 years' experience as a sales executive in the pharmaceutical industry in the areas of urology, endocrinology, psychiatry, and internal medicine. Brandi collaborates with organizations, health centers, and physician offices to promote patient research opportunities at CNS Healthcare.