Contrast Nephropathy Expert Witnesses

Fremont, California

Nephrology - dialysis, hyperkalemia, hyponatremia, osmotic demyelination, glomerulonephritis, acute kidney injury, chronic kidney disease, hypertension, end stage renal disease, hemodialysis, peritoneal dialysis, nephrotic syndrome, proteinuria, diabetic nephropathy, rhabdomyolysis, contrast nephropathy

Varun Chawla, MD, MPH is a Harvard-educated, board-certified nephrologist with over 14 years of busy, full-time active clinical practice caring for adult patients with complex kidney disease. He serves as Medical Director of the Hemodialysis Unit while maintaining a high-volume practice at Washington Hospital and St. Rose Hospital. Dr. Chawla is also Director of Research and has served as Principal Investigator on several clinical trials. He has an extensive research and publication record focused on advancing nephrology care. Renowned for his ability to distill complex medical concepts into clear explanations, he is an esteemed educator and speaker, frequently teaching residents and colleagues using evidence-based approaches. He is an active member of the American Society of Nephrology. Dr. Chawla provides expert witness services to both plaintiff and defense counsel. His areas of expertise include dialysis (hemodialysis and peritoneal), acute kidney injury, chronic kidney diseas...

St. Louis , Missouri

Nephrology, Internal Medicine - Hypertension, Hemodialysis, Plasmapheresis, Glomerular Disease, Kidney Stones, Hyponatremia, Hyperkalemia, Kidney Transplant, Polycystic Kidney Disease, Acute Kidney Failure, Chronic Kidney Disease, Peritoneal Dialysis, Osmotic Demyelination Syndrome, Rhabdomyolysis, Contrast Nephropathy

Dr. Larson completed his Internal Medicine training at the University of Chicago. He was awarded “Resident of the Year” for three consecutive years, followed by a Chief Resident year at the same institution, in which he was granted an academic position at the University of Chicago as a clinician educator. He completed his fellowship training in Nephrology at Washington University in St. Louis. Currently, Dr. Larson is a full-time practicing nephrologist. He is owner/partner at St. Louis Kidney Consultants and Chief of Nephrology at Missouri Baptist Medical Center. He also is the Medical Director for Renal and Dialysis Services at Missouri Baptist Medical Center and the Medical Director for two Davita Dialysis Units in the St. Louis area. In 2025, he was elected President of the Medical Staff at Missouri Baptist Medical Center. In addition, he is the Medical Director for Community Therapeutic Apheresis (CTA) which supplies Plasmapheresis services in St. Louis. Dr. Larson has pu...