Course Faculty


Catherine Barnes, RN, PhD

As co-director of the Diabetes Management Program (DMP) at Grady Health System, Dr. Barnes was instrumental in conducting the NIH research that developed into an ongoing program at Grady. The DMP supports diabetes-related performance feedback and decision support flowsheets to providers in the Grady Medical Clinic. She is currently funded for her patient empowerment research by the American Diabetes Association and the American Heart Association. Her research related to provider inertia is funded by Aetna and, in the area of patient medication adherence, she is funded by the NIH.

Rochanda Crawford, RN, CDE

Ms. Crawford has worked as an inpatient diabetes educator on the medical, surgical and critical care units for the past 13 years. She is a certified diabetes educator.


Janine Freeman, RD, LD, CDE

Janine has been actively involved nationally with with the American Diabetes Associaton, the American Association for Diabetes Educators, and the Diabetes Care and Education Practice Group (DCE) of the American Dietetic Association. Freeman has written and spoken frequently to lay and professional audiences on diabetes and nutrition topics.


Charlotte Hayes, MMSc, MS, RD, CDE

Charlotte Hayes MMSc, MS, RD, CDE has 25 years of specialty experience in nutrition, exercise science and diabetes care and education.   She is recognized for leadership activities within the American Association of Diabetes Educators, Diabetes Care and Education DPG of the American Dietetic Association, and the American Diabetes Association. Hayes has published numerous articles and spoken nationally on nutrition, exercise, and diabetes-related topics.

Jessica Marcinkevage


Jessica Marcinkevage, MSPH (PhD Candidate)

 Jessica Marcinkevage is a PhD candidate in the Nutrition and Health Sciences Program.  She is a graduate of the University of Rochester, where she received her BA in Biology and minors in German and Anthropology.  She received her Masters of Science in Public Health from the Global Health department at the Rollins School of Public Health in 2007.  Her research interests are in the areas of maternal and child nutrition, focusing her studies on health effects of diabetes during pregnancy and among women of childbearing age. Her previous work experience includes project management for a vitamin supplementation study in rural Guatemala. She is a member of the American Society of Nutrition and American Public Health Association.

Maureen McGrath, RN, CPNP, CDE

A graduate of the University of California San Francisco's School of Nursing, Ms. McGrath has been a nurse for 14 years. She currently works for Emory Children's Center as a pediatric nurse practitioner in the diabetes clinic. Ms. McGrath has been involved with diabetes camps for children with diabetes since 1983 and currently serves on the board of directors for Camp Kudzu which operates residential camps for Georgia youth with diabetes. Ms. McGrath helped start the UCSF pediatric pump program.


Christopher Newton, MD

Dr. Christopher Newton is an Assistant Professor of Medicine with Emory University School of Medicine.  His interests include the treatment of diabetes and its complications as well as the integration of technology into the management of diabetes.

Rita Panayioto, RD, LD, CDE

Rita Panayioto has been involved in diabetes care and education since 1983 and certified as a diabetes educator (CDE) since 1989. She specializes in meal planning and physical activity for diabetes management. Rita is currently an instructor in the professional course at Grady Health System and has lectured for the course for over 20 years.


Mary Rhee, MD, MS

Dr. Rhee is involved in research into the treatment of diabetes and its complications. She provides patient care in diabetes clinic at Grady Health System and is an assistant professor of medicine at Emory University.


Betsy Rodriguez, RN, BSN, MSN, CDE

Betsy Rodríguez is a nurse in chronic care and a diabetes educator. She is also a bicultural specialist in social marketing strategies and in the creation of media products for Hispanic Latino audiences. Currently, Ms. Rodríguez works as Senior Deputy Director of the National Diabetes Education Program (NDEP) at the Centers for Disease Control and Prevention (CDC). She has been the driving force behind NDEP's efforts to work with the entertainment industry and with international diabetes organizations as well as the leader of the Hispanic/Latino Initiative in the Division of Diabetes from CDC.

  Britt Rotberg

Britt Rotberg, MS, RD, LD

Britt Rotberg is the Senior Program Coordinator of the Emory Diabetes Education and Training Academy (EDETA) which includes the Emory Diabetes Course, the Emory Diabetes Education for Clinical Support Staff (DECCS) and the Emory Latino Diabetes Education Program (ELDEP). This year she developed the Emory Latino Diabetes Education for Gestational Diabetes (ELDEG) and currently teaches diabetes education to pregnant women in eight clinics throughout the Atlanta area. In 2011, she completed her Master’s of Science and Dietetic Internship at the University of Georgia with a full scholarship while working as a Teacher’s Assistant and Graduate Assistant. During her educational career, she worked for the Expanded Food and Nutrition Education Program (EFNEP) as a nutrition educator to improve the health status of the Atlanta and Athens community.


Dawn Smiley, MD

Dr. Dawn Smiley received her Doctorate of Medicine from the University of Alabama Birmingham (UAB) in 1999. She completed a combined Internal Medicine/Pediatrics residency program at the University of Cincinnati and later completed an Endocrinology fellowship at Emory University in 2005.  Dr. Smiley is currently a faculty member Emory School of Medicine and she recently received her Master of Science in Clinical Research degree from Emory. Dr. Smiley has been productive publishing manuscripts and text chapters, submitting abstracts, obtaining grants to fund her clinical research studies, and teaching the housestaff and ancillary staff.


Guillermo Umpierrez, MD

Dr. Umpierrez is the Chief of Endocrinology and Diabetes for Grady Hospital and a Professor at Emory School of Medicine. He first joined the Emory University School of Medicine faculty in 1992 - 1997. He returned in 2003 to focus on diabetes and metabolic disorders. Dr. Umpierrez's research interests include mechanisms for ß-cell dysfunction in minority populations with ketosis-prone type 2 diabetes, the effects of free fatty acids on insulin secretion and hypertension in obese patients, and the inpatient management of insulin in critical and non-critical patients.


David Ziemer, MD, MPH

Fellowship in Endocrinology & Metabolism at MCG and Research Fellowship Endocrinology & Metabolism USF. Served as a research associate at the VA Atlanta, an instructor in endocrinology at Emory/VA and now serve in current position. Past research interests in Insulin Resistance/Glucose and transporter mechanism of insulin action; current interest in insulin resistance and type 2 diabetes. Speaker in professional diabetes course conducted in Diabetes Unit since 1992.