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 an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS), Hemolytic-Uremic Syndrome, D-Plus Hemolytic Uremic Syndrome, Glomerulonephritis, and Kidney Transplant.

Dr. Sumeska Thavarajah is an assistant professor of medicine at the Johns Hopkins University School of Medicine. Her areas of expertise include nephrology. Dr. Thavarajah earned her M.D. at Wayne State University School of Medicine. She completed her residency at the University of Connecticut Health Center and performed nephrology fellowships at Johns Hopkins Bayview Medical Center and the University of Connecticut Health Center. She serves as chair of the National Kidney Foundation of Maryland’s Medical Advisory Board. She was recognized by the National Kidney Foundation of Maryland with a Linda Cameron Award for Patient Services in 2015. Courses & Syllabi Nephrology Elective (Consultation Service),, Bayview Medical Center, 1/1/15. Dr. Thavarajah is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Nephrosclerosis, and Renovascular Hypertension.

Dipal Patel is a Nephrologist in Baltimore, Maryland. Dr. Patel has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are Acute Kidney Failure, Chronic Kidney Disease, Arteriovenous Malformation, and End-Stage Renal Disease (ESRD).

Dr. Li Hua is a hospitalist at Johns Hopkins Howard County Medical Center. Dr. Hua only sees patients who are in the hospital, she does not have outpatient clinic appointments. Dr. Hua is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are Sickle Cell Disease, Sepsis, Ogilvie Syndrome, Hip Replacement, and Gastrostomy.

Dr. Jerome Gnanaraj is on the faculty at the Johns Hopkins University School of Medicine and is a hospitalist at Johns Hopkins Bayview Medical Center. His area of clinical expertise is internal medicine. He received his M.D. from Madurai Medical College and completed his residency at Yale-New Haven Hospital Saint Raphael Campus. Dr. Gnanaraj is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Pellagra, Osmotic Demyelination Syndrome, Diabetic Hyperglycemic Hyperosmolar Syndrome, Familial Neurocardiogenic Syncope, and Endoscopy.

Susrutha Kotwal, MD, is an Assistant Professor at the Johns Hopkins University School of Medicine. He completed his Doctorate of Medicine in 2006 from the University of Rajasthan in India. Dr. Kotwal was trained in Family Medicine at Guthrie/Robert Packer Hospital in Sayre, Pennsylvania. Following residency, he joined the Division of Hospital Medicine in July 2012 and completed a Hospital Medicine Fellowship in 2014. Dr. Kotwal serves as the HOME (Hospitalist Oriented Medical Education) Team Director for the Division of Hospital Medicine. Dr. Kotwal’s research interests and expertise are in Medical Education, Patient Safety, and Clinical Excellence. Dr. Kotwal co¬‐developed a Diagnostic Reasoning Curriculum for Internal Medicine Residents at Johns Hopkins Bayview which he now directs. Dr. Kotwal has been awarded the Scott Wright Research Award in Hospital Medicine and the Hospitalist Teaching Award by the Department of Medicine at Johns Hopkins. Nationally and regionally, Dr. Kotwal has presented his research work on Clinical Excellence at the Society of Hospital Medicine’s conferences. He has a wealth of knowledge in curriculum development and medical education. Dr. Kotwal is a Fellow of the Society of Hospital Medicine. Dr. Kotwal is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Pellagra, Atypical Pneumonia, Osmotic Demyelination Syndrome, Diabetic Hyperglycemic Hyperosmolar Syndrome, and Endoscopy.

Jonathan Lim is a Nephrologist in Baltimore, Maryland. Dr. Lim is rated as an Advanced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are End-Stage Renal Disease (ESRD), Acute Kidney Failure, Chronic Kidney Disease, and Low Sodium Level.

Dr. Mejia is an Assistant Professor of Medicine at the Johns Hopkins University School of Medicine. Her areas of clinical expertise include chronic and acute kidney disease, and kidney and pancreas transplantation. Dr. Mejia earned her M.D. from the University of the Philippines. She completed her residency at the University of the Philippines-Philippine General Hospital. She completed her General Nephrology Fellowship at Thomas Jefferson University in Philadelphia where she served as chief fellow. She then pursued a fellowship in Transplant Nephrology at the Johns Hopkins University after which she joined as faculty. Dr. Mejia is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are Chronic Kidney Disease, Low Sodium Level, Focal Segmental Glomerulosclerosis, Kidney Transplant, and Nephrectomy.

Dr. Geetha is a Professor of Clinical Medicine in the Division of Nephrology, Johns Hopkins University School of Medicine. A graduate of Madras Medical College, India, she completed Internal Medicine training in U.K. She did her Internal Medicine Residency at York, PA and Nephrology fellowship at Johns Hopkins Bayview Medical Center. She has been on Hopkins faculty since 1998. She is the Associate Director of the Johns Hopkins Vasculitis Center and co-director of the Johns Hopkins Glomerular Disease Clinic. She is a member of Royal College of Physicians (U.K.) and Fellow of the American Society of Nephrology. She was inducted to the Miller Coulson Academy of Clinical Excellence. Dr. Geetha is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are Glomerulonephritis, Microscopic Polyangiitis, Chronic Kidney Disease, Granulomatosis with Polyangiitis, and Kidney Transplant.

Dr. Luis F. Gimenez is an assistant professor of medicine at the Johns Hopkins University School of Medicine. His area of clinical expertise includes nephrology. Dr. Gimenez received his medical degree from Facultad de Medicina de la Universidad de Chile. He completed residencies in internal medicine at Hospital Clinico Regional Dr. Guillermo Grant Benavente, Hospital Carlos Van Buren and the Johns Hopkins School of Medicine. He performed his fellowship in nephrology at Johns Hopkins. His research interests include the pathophysiology of chronic renal failure. Dr. Gimenez is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Acute Kidney Failure, and Minimal Change Disease.

Novia Singh is a Nephrologist in Baltimore, Maryland. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are End-Stage Renal Disease (ESRD), Nephrosclerosis, Renovascular Hypertension, and Chronic Kidney Disease.

Dr. Mohamad Hanouneh is an Assistant Professor of Medicine at the Johns Hopkins University School of Medicine. His areas of clinical expertise include renal medicine. Dr. Hanouneh grew up in Syria and completed his medical school in Tishreen University in Latakia, Syria. He completed Internal Medicine Residency training at Cleveland Clinic, and Nephrology Fellowship at Johns Hopkins. Dr. Hanouneh currently serves as a part-time faculty in the Division of Nephrology at Johns Hopkins. He also works in the Nephrology Center of Maryland covering Good Samaritan and Upper Chesapeake Hospitals. Dr. Hanouneh has a passion in medical education. He runs the nephrology board review course and participates in Genes to Society Course of Renal Physiology, which is given to the medical students at Johns Hopkins University School of Medicine. His area of interests are electrolytes disorders, diabetic kidney disease and nephrolithiasis. Dr. Hanouneh is rated as an Advanced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Low Potassium Level, End-Stage Renal Disease (ESRD), Chronic Kidney Disease, and High Potassium Level.

Anju Yadav is a Nephrologist and a Transplant Surgeon in Baltimore, Maryland. Dr. Yadav is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are Cytomegalovirus Infection, Cytomegalic Inclusion Disease, Chronic Kidney Disease, and End-Stage Renal Disease (ESRD).

Dr. Abbal Koirala hails from Kathmandu, Nepal. He completed a nephrology and glomerulonephritis fellowship at the University of Washington, Seattle, and held the position of Clinical Assistant Professor there from 2020 to 2024. In August 2024, he joined the faculty of the Division of Nephrology at the Johns Hopkins School of Medicine as the Assistant Professor of Medicine and Associate Director at the Johns Hopkins Glomerular Clinic. Dr. Koirala sees patients with glomerular diseases and provides second opinions upon request. His clinical and research interests revolve around glomerular diseases and onco-nephrology. Dr. Koirala is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Goodpasture Syndrome, Lupus Nephritis, Glomerulonephritis, and Chronic Kidney Disease.

Mohamed G. Atta, MD, MPH, is Professor of Medicine at Johns Hopkins University School of Medicine in Baltimore, Maryland and Director of Von Hippel Lindau Clinical Care Center at Hopkins. A graduate of Mansoura University School of Medicine in Egypt, he completed his internship and residency training in various locations including the Urology and Nephrology Center at Mansoura University, Cabrini Medical Center in New York, and Johns Hopkins University School of Medicine. Dr. Atta received his MPH degree from Johns Hopkins Bloomberg School of Public Health in 2005. Dr. Atta is a member of the Health Disparity Committee at the Department of Health and Mental Hygiene in Maryland, the Scientific Council on Kidney of the American Heart Association, the International Society of Nephrology, and the American Society of Nephrology. Dr. Atta has participated as principal investigator in several studies, clinical trials, and serves as a peer reviewer for the Journal of Clinical Investigation, Archives of Internal Medicine, American Journal of Medicine, Kidney International, Journal of the American Society of Nephrology, Clinical Journal of the American Society of Nephrology, American Journal of Kidney Diseases, Clinical Infectious Disease, and Journal of Infectious Diseases among others. He authored or co-authored numerous articles published in Genomics, the Journal of Biological Chemistry, Journal of clinical investigation, Clinical Infectious Disease, Circulation, Stem Cells Translational Medicine, American Journal of Medicine, and American Journal of Transplantation, Journal of the American Society of Nephrology, Clinical Journal of the American Society of Nephrology, American Journal of Kidney Disease, Nephrology Dialysis Transplantation, and Kidney International, among others. Dr. Atta is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are End-Stage Renal Disease (ESRD), Glomerulonephritis, Lupus Nephritis, Chronic Kidney Disease, and Kidney Transplant.

Dr. Samir Gautam, is an Assistant Professional of Medicine at Johns Hopkins School of Medicine with expertise in Nephrology and Critical Care Medicine. He staffs patients in Johns Hopkins Hospital, chronic dialysis clinics, Bayview Medical Center and clinic and also has a specialty clinic Post AKI clinic at Johns Hopkins Outpatient Center. Dr. Gautam is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Acute Kidney Failure, and Nephrosclerosis.

Navneet Ahuja is a Nephrologist in Baltimore, Maryland. Dr. Ahuja is rated as an Advanced provider by MediFind in the treatment of Low Sodium Level. Her top areas of expertise are Nephrosclerosis, Renovascular Hypertension, Acute Kidney Failure, and End-Stage Renal Disease (ESRD).

Neil Agarwal is a Nephrologist in Baltimore, Maryland. Dr. Agarwal is rated as an Advanced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Low Sodium Level, Nephrosclerosis, Renovascular Hypertension, and Acute Kidney Failure.

Matthew Weir is a Nephrologist in Baltimore, Maryland. Dr. Weir is rated as an Experienced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are High Potassium Level, Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Kidney Transplant, and Nephrectomy.

Alexis Nworah is a primary care provider, practicing in Internal Medicine in Baltimore, Maryland. Dr. Nworah is rated as an Advanced provider by MediFind in the treatment of Low Sodium Level. His top areas of expertise are Acute Kidney Failure, Myelodysplastic Syndrome (MDS), End-Stage Renal Disease (ESRD), Hip Replacement, and Endoscopy.