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 Advanced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS), D-Plus Hemolytic Uremic Syndrome, Hemolytic-Uremic Syndrome, Glomerulonephritis, and Kidney Transplant.

Dr. Georgiades earned a series of degrees (BSc-Mechanical Engineering, MS & PhD-Radiological Sciences and an MD). He received a 1-year training in Internal Medicine at Harvard and subsequently, completed subspecialty training at Johns Hopkins in Diagnostic and Interventional Radiology. He has been a full time faculty at Johns Hopkins since 2003 (except for a 3 year hiatus 2012-2015 when he set up a private practice overseas). He has held various positions including fellowship director, clinical director and was a member of many Departmental and Institutional committees. He is a prolific researcher with more than 100 manuscripts, more than 100 abstracts, 28 book chapters and numerous presentations at national and international fora. Dr. Georgiades is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Fibrolamellar Carcinoma, Bile Duct Obstruction, Neuroendocrine Tumor, Liver Embolization, and Gastrostomy.

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 Acute Arterial Occlusion of Kidney. Her top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Nephrosclerosis, and Renovascular Hypertension.

Anita Pasumarthy is a Nephrologist in Baltimore, Maryland. Dr. Pasumarthy is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. Her top areas of expertise are Nephrosclerosis, Renovascular Hypertension, End-Stage Renal Disease (ESRD), and Chronic Kidney Disease.

Robert Benitez is a Cardiologist in Baltimore, Maryland. Dr. Benitez is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Mitral Valve Regurgitation, Necrosis, Cardiogenic Shock, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Brajesh Lal is a Vascular Surgeon and a General Surgeon in Baltimore, Maryland. Dr. Lal is rated as an Advanced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Carotid Artery Disease, Venous Insufficiency, Varicose Veins, Stent Placement, and Carotid Artery Surgery. Dr. Lal is currently accepting new patients.

Sarasijhaa Desikan is a Vascular Surgeon in Baltimore, Maryland. Dr. Desikan is rated as an Advanced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. Her top areas of expertise are Carotid Artery Disease, Idiopathic Edema, Acute Arterial Occlusion of Kidney, and Saddle Pulmonary Embolism. Dr. Desikan is currently accepting new patients.

Jeffrey Hirsch is a Radiologist in Baltimore, Maryland. Dr. Hirsch is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Ascites, Visceromegaly, Retroversion of the Uterus, and Angiomyoma.

Shahab Toursavadkohi is a Vascular Surgeon and a General Surgeon in Baltimore, Maryland. Dr. Toursavadkohi is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Thoracic Aortic Aneurysm, Abdominal Aortic Aneurysm (AAA), Aortic Dissection, Embolectomy, and Carotid Artery Surgery. Dr. Toursavadkohi is currently accepting new patients.

Kevin Brown is a Vascular Surgeon in Baltimore, Maryland. Dr. Brown is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are End-Stage Renal Disease (ESRD), Carotid Artery Disease, Arterial Embolism, Stasis Dermatitis and Ulcers, and Carotid Artery Surgery. Dr. Brown is currently accepting new patients.

Alok Gupta is a General Surgeon in Baltimore, Maryland. Dr. Gupta is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Gallbladder Disease, Hernia, Gallstones, Hernia Surgery, and Bone Marrow Transplant. Dr. Gupta is currently accepting new patients.

Selam Tewolde is a primary care provider, practicing in Internal Medicine in Baltimore, Maryland. Dr. Tewolde is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. Her top areas of expertise are Renovascular Hypertension, Sepsis, Pulmonary Embolism, Endoscopy, and Gastrostomy.

Margaret Lynch-Nyhan is a Radiologist and an Interventional Radiologist in Baltimore, Maryland. Dr. Lynch-Nyhan is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. Her top areas of expertise are Ascites, Thyroid Nodule, Pleurisy, Bone Marrow Aspiration, and Gastrostomy.

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

Rudolf Pullmann is a Nephrologist in Catonsville, Maryland. Dr. Pullmann is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Nephrosclerosis, Renovascular Hypertension, Acute Tubular Necrosis, and Acute Kidney Failure. Dr. Pullmann is currently accepting new patients.

Rochelle Cunningham is a Nephrologist in Baltimore, Maryland. Dr. Cunningham is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. Her top areas of expertise are Nephrosclerosis, Renovascular Hypertension, Glomerulonephritis, and Diabetic Nephropathy.

Shahab Khan is a Nephrologist in Glen Burnie, Maryland. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Acute Kidney Failure, Nephrosclerosis, Renovascular Hypertension, and Chronic Kidney Disease. Dr. Khan is currently accepting new patients.

Dipti Patel is a Nephrologist and a Hospital Medicine provider in Baltimore, Maryland. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. Her top areas of expertise are Acute Kidney Failure, End-Stage Renal Disease (ESRD), Chronic Kidney Disease, and Necrosis. Dr. Patel is currently accepting new patients.

Irfan Shukrullah is a Nephrologist in Baltimore, Maryland. Dr. Shukrullah is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Acute Kidney Failure, End-Stage Renal Disease (ESRD), Chronic Kidney Disease, and Necrosis. Dr. Shukrullah is currently accepting new patients.

Kannan Manickam is an Urologist in Baltimore, Maryland. Dr. Manickam is rated as an Experienced provider by MediFind in the treatment of Acute Arterial Occlusion of Kidney. His top areas of expertise are Urinary Incontinence, UPJ Obstruction, Enlarged Prostate (BPH), Urinary Tract Infection in Children, and Ureteroscopy. Dr. Manickam is currently accepting new patients.