Our Providers


David Circle, MD, PhD

CEO & Founder
Carolina Online Health


Dr. David Circle was born and raised in the small town of Kennesaw, Georgia. He graduated from the University of Georgia with a bachelor’s degree in biochemistry. He then went to Cornell University where he received a PhD in biochemistry with his work in RNA structure. He obtained his medical degree from the Medical College of Georgia in Augusta, Georgia, and completed his Emergency Medicine residency at Detroit Receiving Hospital in Detroit, Michigan. He has been in Greenville, SC since 2002 working in the emergency departments of the Greenville Hospital System and St Francis Bon Secours Health System. He is board certified in Emergency Medicine.


Gregory Rimmer, DO

Medical Provider


Dr. Gregory Rimmer grew up in the New Orleans area prior to relocating to Atlanta. He completed undergraduate studies at Berry College in Rome, GA. His medical degree was completed at A.T. Still University in Kirksville, MO. Upon completing a year of Pediatrics at LeBohneur Childrens Hospital in Memphis, TN he went on to finish his Emergency Medicine training through Michigan State University COM in Flint, MI. He has been in South Carolina since completion of his training in 2006. He is board certified in Emergency Medicine.