Department of Medicine

Department of Medicine

  Division of Renal-Electrolyte



Fellowship Program


James R. Johnston, MD

Professor of Medicine
Director, Renal Fellowship Program
Clinical Director, Renal-Electrolyte Division
Director, Academy of Master Educators

Dr. Jamie Johnston is Professor of Medicine in the Department of Medicine and Renal-Electrolyte Division.  He serves as Director of the Renal Fellowship Training Program, Director of Clinical Services for the Renal-Electrolyte Division and is the Director of the Academy of Master Educators. Dr. Johnston focuses his energy in the areas of patient care and education. He teaches at all levels of medical education from the undergraduate honors college through post-graduate medical education. His efforts in education have been recognized with a National Golden Apple Teaching Excellence award from the American Medical Student Association, The Dean's Master Educator Award,  The Sheldon Adler Award for Innovation in Medical Education, and the University of Pittsburgh Chancellor's Teaching Award, as well as 16 Excellence in Education awards and seven  University of Pittsburgh Golden Apple awards from the University of Pittsburgh School of Medicine medical students.  In the area of medical care he has been selected numerous times as one of America's Top Doctors and Best Doctors in America.


Helbert Rondon, MD

Assistant Professor of Medicine
Associate Director, Renal Fellowship Program
Associate Clinical Director, Renal-Electrolyte Division

Dr. Rondon is an Assistant Professor of Medicine, Associate Program Director of the Nephrology Fellowship Program, and Associate Clinical Director of the Renal-Electrolyte Division at the University of Pittsburgh School of Medicine in Pittsburgh, PA. Dr. Rondon was born and raised in Lima, Peru, where he attended Universidad Nacional Mayor de San Marcos School of Medicine. He completed his residency in Internal Medicine at the University of Texas Medical Branch in Galveston and then a clinical fellowship in Nephrology at the University of Pittsburgh School of Medicine. Dr. Rondon has published several manuscripts in the area of hyponatremia. Other interests include medical education, electrolyte physiology, mechanisms of sodium retention in nephrotic syndrome, and glomerular disorders. His interest in medical education focuses on innovative ways to teach hyponatremia to residents and students. Dr. Rondon is a Fellow of the American College of Physicians and American Society of Nephrology. Dr. Rondon is also a former Harvard Macy Scholar.