
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 highly rated in 15 conditions, according to our data. His top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS), Hemolytic-Uremic Syndrome, D-Plus Hemolytic Uremic Syndrome, Glomerulonephritis, and Kidney Transplant.
His clinical research consists of co-authoring 76 peer reviewed articles. MediFind looks at clinical research from the past 15 years.
Residency
Specialties
Licenses
Board Certifications
Fellowships
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE
- PPO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER MEDICARE PART D
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- INSURANCE PLAN
- MEDICARE PDP
- PPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE-MEDICAID PLAN
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
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.
University Of Maryland Pediatric Associates PA
Matthew Weir is a Nephrologist in Baltimore, Maryland. Dr. Weir is highly rated in 10 conditions, according to our data. His top areas of expertise are High Potassium Level, Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Kidney Transplant, and Nephrectomy.
Johns Hopkins Outpatient Center
Daniel C. Brennan, M.D., joins the Johns Hopkins Division of Renal Medicine as professor of nephrology and medical director of the Comprehensive Transplant Center. Dr. Brennan’s areas of clinical expertise include transplant nephrology and renal disease. Prior to joining Johns Hopkins, Dr. Brennan was the Alan A. and Edith L. Wolff Professor of renal Diseases at Washington University and the Director of Transplant Nephrology at the Washington University School of Medicine. He received his undergraduate degree from Cornell College and earned his medical degree at the University of Iowa, where he completed a residency in internal medicine. He then completed research and clinical nephrology fellowships at Brigham & Women’s Hospital/Harvard Medical School. Dr. Brennan holds professional memberships at various organizations, including the American College of Physicians, the International Society of Nephrology, the American Society of Nephrology, The Transplantation Society, the American Society of Transplant Physicians and the American Society of Clinical Investigation. Dr. Brennan is highly rated in 11 conditions, according to our data. His top areas of expertise are Chronic Kidney Disease, Cytomegalovirus Infection, Cytomegalic Inclusion Disease, Kidney Transplant, and Pancreas Transplant.
Office
Morgan Grams is a Nephrologist in Baltimore, Maryland. Dr. Grams is highly rated in 6 conditions, according to our data. Her top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), High Potassium Level, Low Potassium Level, and Kidney Transplant.
Frequently Asked Questions about Dr. John Sperati
How do I make an appointment with Dr. John Sperati?
You can book an appointment with Dr. John Sperati by calling their office at 410-955-0670. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. John Sperati a top-rated expert for Atypical Hemolytic Uremic Syndrome (aHUS)?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. John Sperati is classified as an Distinguished expert for Atypical Hemolytic Uremic Syndrome (aHUS), meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. John Sperati specialize in?
While Dr. John Sperati is a Nephrology, they have specific expertise in Atypical Hemolytic Uremic Syndrome (aHUS), Hemolytic-Uremic Syndrome, and D-Plus Hemolytic Uremic Syndrome. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Nephrology.
Does Dr. John Sperati participate in research or clinical trials?
Yes. Dr. John Sperati has published 76 articles and abstracts on conditions like Atypical Hemolytic Uremic Syndrome (aHUS). You can view a list of Dr. John Sperati's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.
Does Dr. John Sperati accept my insurance?
Dr. John Sperati accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 410-955-0670 to verify that your specific plan is currently accepted before your visit.
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.

