Overview
Dr. C. John Sperati is an Associate Professor of Medicine at the Johns Hopkins University School of Medicine. His areas of clinical expertise include renal medicine. Dr. Sperati is Director of the Glomerular Diseases Fellowship Program since 2023 and formerly directed the Nephrology Fellowship Training Program from 2019 - 2025. He was the long-serving Firm Faculty Leader of the Barker Firm and has held leadership positions within the Osler Medical Residency training program. In addition, he co-directs the Johns Hopkins Osler Learning Initiative which brings the principles of medical residency training to executive education worldwide. He obtained his medical degree from The Pennsylvania State University College of Medicine and a Master in Health Science from the Johns Hopkins Bloomberg School of Public Health. He completed an internship and residency in Internal Medicine at the Johns Hopkins Hospital, followed by a year as an Assistant Chief of Service (chief resident). He subsequently pursued subspecialty training in nephrology at the Johns Hopkins Hospital and joined the faculty in the Division of Nephrology. Dr. Sperati’s clinical interests are in thrombotic microangiopathy including atypical hemolytic uremic syndrome (aHUS), complement-mediated kidney diseases including C3 glomerulopathy, glomerular disease such as glomerulonephritis (e.g., IgA nephropathy, MPGN) and nephrotic syndromes (e.g., FSGS, membranous, minimal change, amyloidosis, and others), and secondary and resistant hypertension (e.g., fibromuscular dysplasia, atherosclerotic renal arterial disease, hyperaldosteronism, and genetic hypertensive syndromes). He is the site principal investigator for clinical trials in glomerular disease, serves on editorial boards, and chairs the approval committee of the Longitudinal Knowledge Assessment for nephrology for the American Board of Internal Medicine. His clinical acumen and educational contributions have been recognized by induction into the Miller Coulson Academy of Clinical Excellence as well as the American Society of Nephrology Distinguished Educator Award in 2020. He has been recognized as a physician resource through the Atypical HUS Foundation, a NephCure glomerular disease specialist, an IgA Nephropathy Foundation specialist, and a Baltimore TopDoc. He is registered with the Florida Department of Health to perform telehealth services for patients in Florida.
Dr. Sperati is rated as a Distinguished provider by MediFind in the treatment of Chronic Kidney Disease. His top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS), D-Plus Hemolytic Uremic Syndrome, Hemolytic-Uremic Syndrome, Glomerulonephritis, and Kidney Transplant.
His clinical research consists of co-authoring 75 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 8 articles in the study of Chronic Kidney Disease.
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Locations
Floor 7, Baltimore, MD 21287
Additional Areas of Focus
Dr. Sperati has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
The Johns Hopkins Hospital
Dr. Crews is a Professor of Medicine in the Division of Nephrology at the Johns Hopkins University School of Medicine. She holds faculty appointments with the School of Nursing, the Welch Center for Prevention, Epidemiology and Clinical Research, the Center on Aging and Health, and the Center for Health Equity, where she is Deputy Director. Her research program aims to advance equity in kidney disease and hypertension outcomes by focusing on social drivers of health inequities. An elected member of the American Society for Clinical Investigation, Dr. Crews has received numerous awards for her research contributions, including the 2018 Johns Hopkins University President’s Frontier Award--a $250,000 award granted to a single faculty scholar on the cusp of transforming their field. She is a former National Academy of Medicine (NAM) Emerging Leader Scholar and was the inaugural Gilbert S. Omenn Anniversary Fellow of the NAM. In 2019, Dr. Crews received the W. Lester Henry Award for Diversity and Access to Care from the American College of Physicians and the Distinguished Leader Award from the American Society of Nephrology. Dr. Crews is the founding director of the Doctoral Diversity Program, a 2-year, research-intensive post-baccalaureate program of the Johns Hopkins Initiative for Careers in Science and Medicine. Dr. Crews received her undergraduate degree from the University of Virginia and her medical degree from Saint Louis University. A graduate of the Osler Medical Training Program, she completed nephrology fellowship and a master’s in clinical epidemiology degree at Johns Hopkins. Dr. Crews is rated as a Distinguished provider by MediFind in the treatment of Chronic Kidney Disease. Her top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Arteriovenous Malformation, Kidney Transplant, and Nephrectomy.
Johns Hopkins Bayview Medical Center
Dr. Bernard Jaar is an associate professor of medicine at the Johns Hopkins University School of Medicine. He holds a joint appointment in epidemiology at the Johns Hopkins Bloomberg School of Public Health. His areas of clinical expertise include chronic kidney disease and all dialysis modalities. Dr. Jaar earned his M.D. from Faculte de Medecine et de Pharmacie of the State University of Haiti. He completed nephrology training at Hopitaux de Paris (Hopital Tenon, Hopital Saint Antoine, Hopital Saint Louis) University of Paris V, France. He subsequently completed an internal medicine residency at Graduate Hospital in Philadelphia and a nephrology fellowship at the Johns Hopkins Hospital, in addition to a post-doctoral fellowship in Epidemiology and a Master in Public Health at the Johns Hopkins Bloomberg School of Public Health. His research interests include epidemiology of chronic kidney disease and end-stage kidney disease, particularly survival in dialysis patients, peripheral arterial disease and environmental risk factors for kidney disease. Dr. Jaar was recognized with the C. Lockard Conley Award 2021 by the American College of Physician Maryland Chapter for contributions to resident education / research and the National Kidney Foundation Garabed Eknoyan Award 2022 for promoting the mission of NKF in making the lives of people with kidney disease better. He is a member of several professional organizations, including the International Society of Nephrology, American Society of Nephrology, National Kidney Foundation, American College of Physicians and the International Society of Peritoneal dialysis. Dr. Jaar is rated as a Distinguished provider by MediFind in the treatment of Chronic Kidney Disease. His top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Calcinosis, Low Potassium Level, and Kidney Transplant.
Michelle Estrella is a Nephrologist in Baltimore, Maryland. Dr. Estrella is rated as a Distinguished provider by MediFind in the treatment of Chronic Kidney Disease. Her top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Focal Segmental Glomerulosclerosis, Prerenal Azotemia, and Kidney Transplant.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- Atypical Hemolytic Uremic Syndrome (aHUS)Dr. Sperati isDistinguished. Learn about Atypical Hemolytic Uremic Syndrome (aHUS).
- Chronic Kidney DiseaseDr. Sperati isDistinguished. Learn about Chronic Kidney Disease.
- D-Plus Hemolytic Uremic SyndromeDr. Sperati isDistinguished. Learn about D-Plus Hemolytic Uremic Syndrome.
- GlomerulonephritisDr. Sperati isDistinguished. Learn about Glomerulonephritis.
- Hemolytic-Uremic SyndromeDr. Sperati isDistinguished. Learn about Hemolytic-Uremic Syndrome.
- Advanced
- Acute Arterial Occlusion of KidneyDr. Sperati isAdvanced. Learn about Acute Arterial Occlusion of Kidney.
- Acute Kidney FailureDr. Sperati isAdvanced. Learn about Acute Kidney Failure.
- End-Stage Renal Disease (ESRD)Dr. Sperati isAdvanced. Learn about End-Stage Renal Disease (ESRD).
- Focal Segmental GlomerulosclerosisDr. Sperati isAdvanced. Learn about Focal Segmental Glomerulosclerosis.
- IgA NephropathyDr. Sperati isAdvanced. Learn about IgA Nephropathy.
- Membranoproliferative Glomerulonephritis
- Experienced
- Cytomegalic Inclusion DiseaseDr. Sperati isExperienced. Learn about Cytomegalic Inclusion Disease.
- Cytomegalovirus InfectionDr. Sperati isExperienced. Learn about Cytomegalovirus Infection.
- Fabry DiseaseDr. Sperati isExperienced. Learn about Fabry Disease.
- Feingold SyndromeDr. Sperati isExperienced. Learn about Feingold Syndrome.
- Goodpasture SyndromeDr. Sperati isExperienced. Learn about Goodpasture Syndrome.
- High Potassium LevelDr. Sperati isExperienced. Learn about High Potassium Level.