About Us

NephroNet is a network of dedicated clinicians, investigators and affiliated sponsors that are collectively committed to advancing patient education, research and the realization of new methods to treat kidney disease. Our non-profit organization provides education for patients on the nature of their disease, treatment options as well as long-term options including the need for dialysis or transplantation.

A principal goal of NephroNet is to educate patients and enable them to work with their physicians to prevent disease progression. We further these efforts by partnering with academic and industry leaders to bring new therapies and devices that will ultimately improve patient’s lives.

Meet Our Board of Directors

Dr. James Tumlin
Dr. James TumlinCEO / Founder
Dr. James Tumlin is founder and medical director of Southeast Renal Research Institute (SERRI) since 2005. The institute was brought to Chattanooga in 2008 and merged with Nephrology Associates’ Research Department. His research certification of Certified Clinical Research Professional (CCRP) from the Society of Clinical Research Associates (SoCRA) shows his dedication to research excellence for over 15 years. Dr. Tumlin received his medical degree from the University of South Florida, College of Medicine and completed his internship and residency at Emory University in Georgia. He then completed his clinical and research fellowship in Nephrology at Emory University in Georgia where he then stayed on as a faculty member in the Department of Medicine. Dr. Tumlin continued his career at Emory where he won numerous awards for clinical teaching and developed a national reputation as a clinical trialist. Dr. Tumlin is widely acknowledged as a thought leader in acute kidney injury and various forms of Glomerulonephritis including IgA nephropathy and Lupus nephrititis. Dr. Tumlin has accepted numerous invitations to Lecture at National or International Conferences. He is current academic appointment is as an Associate Professor of Medicine at the University of Tennessee Chattanooga.
Brad Rovin, MD
Brad Rovin, MDBoard Member
Dr. Rovin is the Lee A. Hebert Distinguished Professor of Medicine and Pathology at the Ohio State University College of Medicine. He is the Director of the Division of Nephrology and is the Vice Chairman of Medicine for Research. Dr. Rovin was the Program Director for the Nephrology Fellowship at Ohio State University for several years, and now directs an advanced fellowship in Glomerular Diseases. Dr. Rovin has been at the Ohio State University for 24 years and has been recognized by Best Doctors® for his work in the area of glomerular diseases. Dr. Rovin received his Bachelor of Science in chemical engineering at Northwestern University followed by his Doctor of Medicine from the University Of Illinois College Of Medicine in Chicago. He completed a residency in Internal Medicine at Barnes Hospital in St. Louis and a fellowship in Nephrology at Washington University.
Randy Hennigar, MD
Randy Hennigar, MDBoard Member
Dr. Randolph Hennigar joins us following fourteen years as Director of the Laboratory of Nephropathology and Electron Microscopy at Emory University Hospital. During that time he also served as an Associate Professor and Co-director of Autopsy Services. Dr. Hennigar received his MD and his PhD in experimental pathology from the Medical University of South Carolina. He completed his fellowship in Molecular Oncology and Nephropathology at the Johns Hopkins University School of Medicine from 1991-1993. Dr. Hennigar is widely published in renal pathology; including having authored more than 50 peer-reviewed journal publications and textbook chapters. He was board certified by the American Board of Pathology in 1995. He is a member of both the College of American Pathologists and The Renal Pathology Society.
Claude M. Galphin, MD,
Claude M. Galphin, MD,Research Lead
Dr. Claude Galphin is a principal investigator for Southeast Renal Research Institute and has been conducting research for over 15 years. His research certification of Certified Principal Investigator (CPI) from the Association of Clinical Research Professionals (ACRP) and Certified Clinical Research Professional (CCRP) from the Society of Clinical Research Associates (SoCRA) shows his dedication to research excellence. He earned his medical degree at Medical University of South Carolina, completed his internal medicine at The Tulane University of Louisiana, New Orleans and his residency and Nephrology Fellowship at Medical College of Georgia, Augusta. Dr. Galphin is currently Board Certified with ABIMin Internal Medicine, Critical Care Medicine, and Nephrology. He is a Hypertension Specialist through the American Society of Hypertension and is certified through the ACRP as a Principal Investigator. He is currently a member of the Renal Physicians Association and a society member of National Kidney Foundation, Fellow of the American College of Physicians, Fellow of the American College of Chest Physicians and Society of Critical Care Medicine. He is also a current member of the ACRP, Society of Clinical Research Professionals (SoCRA) and Drug Information Association (DIA)