Memphis Clinical Research

Since 2001 CNS Healthcare has been a leader in clinical research in Memphis.

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.

Gwen Randle | Office Manager

Gwen has been the welcoming face of CNS Healthcare Of Memphis since 2002 and is affectionately known to staff and patients as "Ms. Gwen". Prior to CNS, Gwen worked for 20 years in Behavior Health Services at St. Francis Hospital. She is a graduate of Hernando High School and attended two years at Northwest Mississippi Junior college.

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.

Rishi Bhula, M.D. | Clinical Research Coordinator

Rishi, a Clinical Research Coordinator who received his Doctor of Medicine degree from Xavier University School of Medicine in Aruba, Netherlands Antilles, joined the team in 2017. He has over twelve years of extensive experience working with people living with autoimmune, affective, psychotic, personality, and pain/inflammatory related disorders, of which over five years of experience working in research and clinical trials.

Robyn Presley, BS | Clinical Research Coordinator

Robyn joined us in 2001 as a Clinical Research Coordinator. She has 17 years of research experience 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.

Jennifer Davis, LMSW, CRC | Clinical Research Coordinator

Jennifer is a licensed social worker who received her Master of Social Work degree from Temple University and her Bachelor’s Degree from Rosemont College.  She has over seven years of experience working in clinics, hospitals and counseling agencies where she primarily focused on adolescents and adults living with PTSD, addiction, depression, anxiety and personality disorders. Jennifer joined CNS Healthcare in 2017 as a Clinical Research Coordinator.  

Nikki Nowlin, MA, LPC, NCC | Clinical Research Coordinator

Nikki is a Licensed Professional Counselor and a National Certified Counselor who received a MA in Clinical Mental Health Counseling and a BA in Psychology from North Carolina Central University.  She has over seven years of experience working in psychiatric clinics and in private practice providing treatment to patients who suffer from depression, anxiety, mood disorders, personality disorders and behavioral disorders. She also served as the assistant on clinical trials with the National Institute of Health and Johns Hopkins University.  Nikki is an active member of the American Psychological Association and the American Counseling Association. 

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 | 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 | 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.

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 | 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.

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