Dr. Robert Brodsky is a professor of medicine at the Johns Hopkins University School of Medicine. His area of clinical expertise is classical hematology and haploidentical bone marrow transplant for sickle cell disease and aplastic anemia. Dr. Brodsky serves as the director of the Division of Hematology and the T32 Training Program. He is the Johns Hopkins Family Professor of Medicine and Oncology. He received his M.D. from Hahnemann University. He completed his residency at the Vanderbilt University School of Medicine. He performed a fellowship in hematology at the National Institutes of Health and a fellowship in oncology at Johns Hopkins. He joined the Johns Hopkins faculty in 1997. From 2017 to 2022 he served as Associate Editor to The Journal of Clinical Investigation (JCI) and Secretary to American Society of Hematology (ASH). He serves as President of The American Society of Hematology (ASH) in 2023. Dr. Brodsky is rated as an Elite provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Paroxysmal Nocturnal Hemoglobinuria (PNH), Paroxysmal Cold Hemoglobinuria, Anemia, Bone Marrow Transplant, and Splenectomy.

Dr. Shruti Chaturvedi is an Associate Professor of Medicine at Johns Hopkins. She received her medical degree from Maulana Azad Medical College, University of Delhi, India. She then completed a residency in Internal Medicine at the Cleveland Clinic, Cleveland, OH, and a fellowship in Hematology and Oncology at Vanderbilt University, Nashville, TN. She has additionally obtained a Master of Science in Clinical Investigation (MSCI) degree from Vanderbilt University. Dr. Chaturvedi specializes in the care of adults with non-malignant hematologic disorders including thrombocytopenic purpura, atypical hemolytic uremic syndrome, antiphospholpiid syndrome, immune thrombocytopenia, autoimmune hemolytic anemia, thrombotic, other bleeding and clotting disorders, and anemias. Her research is focused on improving the care of patients with thrombotic microangiopathies with a focus on long term sequelae, and the role of complement in thrombotic disorders such as the antiphospholipid syndrome. Dr. Chaturvedi is rated as a Distinguished provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Blood Clots, Atypical Hemolytic Uremic Syndrome (aHUS), Anemia, Splenectomy, and Bone Marrow Aspiration.

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 Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS), D-Plus Hemolytic Uremic Syndrome, Hemolytic-Uremic Syndrome, Glomerulonephritis, and Kidney Transplant.

Dr. Nada Alachkar is an associate professor of medicine at the Johns Hopkins University School of Medicine. Her areas of clinical expertise include incompatible kidney transplants, kidney transplants, nephrology and pancreas transplants. Dr. Alachkar earned her M.D. at Aleppo University Faculty of Medicine in Syria. She completed residencies at Aleppo University and Wright State University School of Medicine. She performed clinical fellowship in nephrology and transplant nephrology fellowship at Johns Hopkins University. Her research interests include recurrent glomerular diseases post kidney transplantation; in particular recurrent FSGS post transplant. Also, she is studying biomarkers in kidney transplants; outcome of living and deceased donor kidney transplant recipients with positive crossmatch; and responses to desensitization treatments and post-transplant outcome in highly sensitized patients. Dr. Alachkar is a member of the American Society of Nephrology and the American Society of Transplantation. Dr. Alachkar is rated as a Distinguished provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Focal Segmental Glomerulosclerosis, Atypical Hemolytic Uremic Syndrome (aHUS), D-Plus Hemolytic Uremic Syndrome, Kidney Transplant, and Splenectomy.

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 rated as an Advanced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Chronic Kidney Disease, Cytomegalovirus Infection, Cytomegalic Inclusion Disease, Kidney Transplant, and Pancreas Transplant.

Dr. Michael Cole is a distinguished graduate of the US Air Force Academy (2006), and as an Alberta Bart Holaday Scholar went on to complete his Doctor of Philosophy in Biochemistry (2010) at University of Oxford under the direction of Prof Paul Wentworth Jr. and Prof Bob Sim. He focused his research on peptide chemistry and acyl group reactivity in thioester-containing proteins such as complement proteins, C3 and C4. He fulfilled his Air Force commitment as a chemist and Assistant Professor of Chemistry at the US Air Force Academy. He came to Johns Hopkins University for medical school in 2014. Since that time, he has stayed at Johns Hopkins completing his medical degree (2018), internal medicine residency training (2021), and hematology fellowship (2024). In 2024, he joined the Division of Hematology as an Instructor. Dr. Cole is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Hemolytic-Uremic Syndrome, D-Plus Hemolytic Uremic Syndrome, D-Minus Hemolytic Uremic Syndrome, and Atypical Hemolytic Uremic Syndrome (aHUS).

Dr. Gloria F. Gerber is an Assistant Professor of Medicine at Johns Hopkins University in the Division of Hematology. She received her undergraduate degree in Biology with High. Dr. Gerber is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Paroxysmal Nocturnal Hemoglobinuria (PNH), Paroxysmal Cold Hemoglobinuria, Hemolysis, and Hemolytic Anemia.

Karin Blakemore, M.D., is the director of prenatal genetics at the prenatal diagnostic center in the Johns Hopkins Department of Gynecology and Obstetrics, and she is a member of the McKusick-Nathans Institute of Genetic Medicine. Her areas of clinical expertise include fetal imaging and fetal genetic disorders. Dr. Blakemore also serves as a professor of oncology and of gynecology and obstetrics in the Johns Hopkins University School of Medicine. Dr. Blakemore earned her medical degree from the Medical College of Ohio at Toledo. She completed her residency at New York University Medical Center and performed fellowships in genetics at Yale University School of Medicine and in maternal and fetal medicine at Washington University School of Medicine. Her research interests include Fetal Genetic Disorders; Prenatal Diagnosis and Fetal Treatment; In Utero Hematopoietic Stem Cell Transplantation; Hemoglobinopathies; Red cell and platelet alloimmunization; Intrapartum physiology and outcomes; Placental development and abnormalities. Dr. Blakemore is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are HELLP Syndrome, Desbuquois Syndrome, Atypical Hemolytic Uremic Syndrome (aHUS), and Hypochondroplasia.

Dr. Rebecca Ruebner is an Associate Professor of Pediatrics at the Johns Hopkins University School of Medicine. She provides care for children with kidney problems of any type including hypertension, hematuria, proteinuria, kidney stones, chronic kidney disease, dialysis, and kidney transplant. She is the medical director of pediatric dialysis. Dr. Ruebner received her undergraduate and medical degrees from the University of Pennsylvania. She completed her residency at Boston Children’s Hospital where she also served as chief pediatric resident. She completed her fellowship in pediatric nephrology at the Children’s Hospital of Philadelphia. During her fellowship, she received a Master's Degree in Clinical Epidemiology from the University of Pennsylvania. Dr. Ruebner became a faculty member at the Children's Hospital of Philadelphia in 2012 before joining the Johns Hopkins faculty in 2016. Dr. Ruebner's clinical research is focused on clinical care and outcomes of children with chronic kidney disease and end-stage kidney disease. Dr. Ruebner is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Hemolytic-Uremic Syndrome, D-Plus Hemolytic Uremic Syndrome, and Kidney Transplant.

Susan Schoenfeld, M.D., practices family medicine at Johns Hopkins Community Physicians Howard County. She received her medical degree from the University Of Maryland School Of Medicine, and also completed her residency in family medicine at MedStar Franklin Square Hospital Center. Dr. Schoenfeld is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Sitosterolemia, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

Kelsey Musselman is an Obstetrics and Gynecologist in Baltimore, Maryland. Dr. Musselman is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Uterine Fibroids, Atypical Hemolytic Uremic Syndrome (aHUS), Ovarian Cysts, and Hemolysis.

Fatima Syed is a primary care provider, practicing in Hospital Medicine in Columbia, Maryland. Dr. Syed is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Sickle Cell Disease, Brain Abscess, Epidural Abscess, Sepsis, and Pacemaker Implantation.

Evan Braunstein is a Hematologist Oncology specialist and a Hematologist in Baltimore, Maryland. Dr. Braunstein is rated as an Advanced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Myeloproliferative Neoplasms (MPN), Essential Thrombocythemia, Myelofibrosis, Sickle Cell Disease, and Bone Marrow Aspiration. Dr. Braunstein is currently accepting new patients.

Stephen Olson is a Nephrologist in Bethesda, Maryland. Dr. Olson is rated as an Advanced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Glomerulonephritis, D-Plus Hemolytic Uremic Syndrome, Hemolytic-Uremic Syndrome, and Atypical Hemolytic Uremic Syndrome (aHUS).

Alison Moliterno is a Hematologist in Baltimore, Maryland. Dr. Moliterno is rated as an Advanced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Myeloproliferative Neoplasms (MPN), Polycythemia Vera, Essential Thrombocythemia, Myelofibrosis, and Bone Marrow Aspiration. Dr. Moliterno is currently accepting new patients.

Carlin Williams is a Vascular Surgeon and a General Surgeon in Fort Washington, Maryland. Dr. Williams is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Aortic Dissection, Thoracic Aortic Aneurysm, Arterial Insufficiency, Carotid Artery Surgery, and Gastrostomy. Dr. Williams is currently accepting new patients.

Katherine Jantac is a Nurse Practitioner in Columbia, Maryland. Ms. Jantac is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS) and Relapsing Multiple Sclerosis (RMS).

Nataliya Melnyk is a Hematologist Oncology specialist and a Hematologist in Bel Air, Maryland. Dr. Melnyk is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are Iron Deficiency Anemia, Essential Thrombocythemia, Childhood Iron Deficiency Anemia, and Pulmonary Embolism.

Robert Nee is a Nephrologist in Bethesda, Maryland. Dr. Nee is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). His top areas of expertise are Chronic Kidney Disease, Lupus Nephritis, Glomerulonephritis, End-Stage Renal Disease (ESRD), and Kidney Transplant.

Julie Langlee is a Nurse Practitioner in Baltimore, Maryland. Ms. Langlee is rated as an Experienced provider by MediFind in the treatment of Atypical Hemolytic Uremic Syndrome (aHUS). Her top areas of expertise are End-Stage Renal Disease (ESRD) and Atypical Hemolytic Uremic Syndrome (aHUS).