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 the NephroNet Clinical trials consortium. NephroNet was born out of the deep need to bring new drugs and treatment paradigms to the field of Nephrology. Dr. Tumlin is an internationally recognized nephrology and clinical trialist. 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 extended his training in internal medicine by doing a clinical and research fellowship with Dr. William Mitch at Emory University. Dr. Tumlin was invited to join the faculty where he focused his research on immunosuppressive drugs and their application in the treatment of Lupus Nephritis and other forms of glomerular disease. Dr. Tumlin has grown into an internationally recognized expert in glomerular disease and currently has over 100 peer reviewed manuscripts. He has lectured at major universities in both the US and Europe. Dr. Tumlin’s academic appointment is with Emory University where he is a full Professor of Medicine. In conjunction with Emory University, GA Tech and other Southern
Universities, he is continuing in his goal to bring cutting edge and novel treatments to the CKD and ESRD patient communities.
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 is currently the Director of Clinical Research, Arkana Laboratories, Little Rock, AK following fourteen years as Director of the Laboratory of Nephropathology and Electron Microscopy at Emory University Hospital. While at Emory 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, MDResearch 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 ABIM in 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)
John Arthur, MD, PhD
John Arthur, MD, PhDBoard Member
Dr. John Arthur is director of the Division of Nephrology in the University of Arkansas for Medical Sciences’ (UAMS) Department of Internal Medicine. Dr. Arthur formerly with the Medical University of South Carolina (MUSC) where he was director of the Nephrology Proteomics Facility and the Nephrology Service and Dialysis at Ralph H. Johnson V.A. Medical Center. He was also an associate professor of medicine and director of the Southeastern Kidney Disease Consortium and held the Dialysis Clinic Inc. Endowed Chair in nephrology. Prior to his time at MUSC, Arthur was director of the Nephrology Training Program at the University of Louisville. While on staff, he was a recipient of the Carl W. Gottschalk Research Scholar Grant from the American Society of Nephrology. Arthur graduated from the University of Iowa’s College of Medicine and the university’s Department of Pharmacology in 1990. Following his internship in internal
medicine at the Duke University Medical Center, Arthur continued training at Duke, completing clinical and research residencies in internal medicine, and clinical and research fellowships in nephrology. He is a member of the National Institute of Diabetes and Digestive and Kidney Diseases’ Kidney, Urologic and Hematologic Diseases D Subcommittee. Arthur serves as a grant reviewer for the American Society of
Nephrology and the American Heart Association. He is the principal investigator on a National Institutes of Health R01 grant, which is exploring biomarkers of early renal functional decline in patients with type 2 diabetes.