Chronic Kidney Disease Expert Witnesses

Los Angeles, California

Nephrology, Diabetes - Acute Renal Failure, End-stage Renal Disease, Chronic Kidney Disease, Hyponatremia, Diabetes Mellitus, Dialysis

Harvard-trained in Nephrology, academic nephrologist, experienced expert witness. Full-time Harvard faculty, board-certified in Nephrology Dr. Mark E. Williams is a Harvard-trained, double board-certified (Internal Medicine, Nephrology) full-time practicing academic nephrologist in Los Angeles, California. He is Director of Dialysis at Keck USC Medical Center, a senior faculty at Los Angeles General Hospital, and an Associate Professor of Medicine at Keck USC School of Medicine. Dr. Williams is a Nationally- and Internationally-recognized leader in the field of chronic kidney disease, end-stage renal disease, diabetes complication, and all forms of renal replacement therapy, including acute and chronic dialysis and therapeutic plasma exchange. He is a Fellow of the American Society of Nephrology, where he has served on numerous committees and given invited lectures, and a Fellow of the American College of Physicians. He has served on Editorial Boards of the leading kidney jour...

Fremont, California

Nephrology - dialysis, hyperkalemia, hyponatremia, osmotic demyelination, glomerulonephritis, acute kidney injury, chronic kidney disease, hypertension, end stage renal disease, hemodialysis, peritoneal dialysis, nephrotic syndrome, proteinuria, diabetic nephropathy, rhabdomyolysis, contrast nephropathy

A Harvard-educated physician, Varun Chawla, MD, MPH, has over a decade of caring for adult patients with kidney disease. Renowned for his adeptness in diagnosing and treating intricate kidney conditions, Dr. Chawla's dual roles at Washington Hospital and St. Rose Hospital, along with his long history of research and publications, showcase his exceptional clinical insight and his deep-seated dedication to both patient care and medical education. His clinical interests include a wide spectrum of nephrology-related issues including diabetic nephropathy, continuous renal replacement therapy, dialysis, plasmapheresis, renal bone disease, and difficult-to-treat hypertension. He actively conducts clinical research. Dr. Chawla is renowned for his research-based teaching and the ability to distill complex medical concepts into clear explanations. An active member of the American Society of Nephrology, Dr. Chawla is known as an esteemed educator and speaker. His academic contributions, parti...

Coralville, Iowa

Nephrology - nephrology, kidney, hypertension, kidney stones, kidney transplant, dialysis, end stage kidney disease, chronic kidney disease, renal insufficiency

Mony Fraer, MD, MHCDS, CPE, FACP, FASN, AHSCP is a board-certified nephrologist, internist, and Clinical Professor at the University of Iowa with more than two decades of experience in kidney disease, dialysis, hypertension, and transplant-related nephrology. His background includes program leadership, extensive teaching and scholarly work, and advanced training in health care delivery and quality improvement, and 15 years experience in expert witness work.

Bethesda, Maryland

Nephrology, Internal Medicine - Renal Transplant, Hemodialysis, Peritoneal Dialysis, Critical Care, Hyperkalemia, Lupus, Renal Mass, Chronic Kidney Disease, Acute Kidney Injury, Hypertension, Renal Failure, Hyponatremia, Medical Director, COVID experience

Education/Work Highlights • Owner/Partner of a leading nephrology practice based in the Greater Washington DC area • Graduated Stanford University, Rutgers University Medical School • Board Certified nephrologist with over 17 years of clinical practice providing care for dialysis, chronic kidney disease and acute kidney injury patients • Provided medical director oversight at 2 high performing dialysis facilities • Executed and maintained high standards by following all CMS initiatives, guidelines, and safety protocols • Served as a key opinion leader at national events regarding hemodialysis and nephrology • Displayed high clinical acumen using evidence base medicine to teach medical residents and students My background as an expert witness over the last five years are below: • Reviewed over 100 medical malpractice cases for both plaintiff and defense attorneys • Demonstrated expertise at over 25 depositions • Testified at trial five times Awards. • Selected as ...

Woodbury, Minnesota

Nephrology, Internal Medicine - Ozempic complications , Mounjaro related kidney complications, Infections in Kidney Transplant, Acute Kidney Injury/Failure, Chronic Kidney Disease, Resistant Hypertension, Hyponatremia, Acidosis, Dialysis- acute and maintenance, peritoneal dialysis, kidney stones, glomerulonephritis, onco-nephrology

Accomplished kidney disease specialist with board certifications in internal medicine and nephrology and passion for diagnosing and treating kidney disease patients with evidence-based care. Published author with over a dozen peer-reviewed publications in various professional journals including Nature Reviews Nephrology and Journal of American Society of Nephrology. Recognized for excellence in teaching and mentoring medical students with the recent receipt of an award from Mayo Clinic College of Medicine in 2021 Prolific case reviewer, medical expert writter and consultant

Saint Louis, Missouri

Nephrology - Dialysis, Hypertension, Chronic kidney disease, Hemodialysis, Peritoneal dialysis, Hyponatremia, Kidney stones, Acute kidney injury, CRRT

I am a board-certified nephrologist and Associate Professor of Internal Medicine with extensive clinical, academic, and administrative experience in kidney disease, dialysis, electrolyte disorders, and critical care nephrology. My practice includes management of both acute and chronic kidney disease in inpatient and outpatient settings, along with oversight of dialysis services as a dialysis medical director. My clinical work focuses on acute kidney injury (AKI), chronic kidney disease (CKD), end-stage kidney disease (ESKD), and complex electrolyte and acid-base disorders. I routinely manage critically ill patients requiring renal replacement therapy, including intermittent hemodialysis and continuous renal replacement therapy (CRRT) in intensive care settings. I also provide care for patients with advanced CKD, including dialysis planning and complications of kidney failure. As a dialysis medical director, I oversee dialysis quality metrics, patient safety initiatives, infection ...

St. Louis , Missouri

Nephrology, Internal Medicine - Hypertension, Hemodialysis, Plasmapheresis, Glomerular Disease, Kidney Stones, Hyponatremia, Hyperkalemia, Kidney Transplant, Polycystic Kidney Disease, Acute Kidney Failure, Chronic Kidney Disease, Peritoneal Dialysis, Osmotic Demyelination Syndrome, Rhabdomyolysis, Contrast Nephropathy

Dr. Larson completed his Internal Medicine training at the University of Chicago. He was awarded “Resident of the Year” for three consecutive years, followed by a Chief Resident year at the same institution, in which he was granted an academic position at the University of Chicago as a clinician educator. He completed his fellowship training in Nephrology at Washington University in St. Louis. Currently, Dr. Larson is a full-time practicing nephrologist. He is owner/partner at St. Louis Kidney Consultants and Chief of Nephrology at Missouri Baptist Medical Center. He also is the Medical Director for Renal and Dialysis Services at Missouri Baptist Medical Center and the Medical Director for two Davita Dialysis Units in the St. Louis area. In 2025, he was elected President of the Medical Staff at Missouri Baptist Medical Center. In addition, he is the Medical Director for Community Therapeutic Apheresis (CTA) which supplies Plasmapheresis services in St. Louis. Dr. Larson has pu...

Rochester , New York

Nephrology - Hemodialysis, Peritoneal Dialysis, Acute kidney injury, Chronic kidney disease, Electrolyte disorders, Acid base disorders, Hypertension

Dr. Scott Liebman is a board-certified nephrologist and Professor of Medicine at the University of Rochester, where he has served on the faculty since 2004. He brings over 20 years of clinical, academic, and leadership experience in nephrology, with a focus on addressing issues surrounding chronic kidney disease, acute kidney injury, dialysis care, and fluid and electrolyte disorders. He earned his MD from Upstate Medical University in Syracuse, NY, completed his internal medicine residency at Mount Sinai Hospital in New York, and his nephrology fellowship at the University of Colorado. He also holds a Master of Public Health degree from the University of Rochester and is board-certified in nephrology and lifestyle medicine. Dr. Liebman has extensive experience in managing kidney diseases, dialysis modalities, and electrolyte disturbances. He serves as medical director for a dialysis clinic and provides expert nephrology care in both inpatient and outpatient settings. An accomplishe...

New York, New York

Nephrology, Internal Medicine - kidneys, dialysis, hyperkalemia, hyponatremia, osmotic demyelination, pyelonephritis, rhabdomyolysis, hypertension, glomerulonephritis, acute renal failure, acute kidney injury, end stage renal disease, hypotension, hemodialysis, chronic kidney disease, lithium, life expectancy

Dr. Joshua Schwimmer is a Columbia-trained, double board-certified, full-time practicing nephrologist and internal medicine physician in New York City. With over 20 years of clinical experience, Dr. Schwimmer is on the medical staff at Lenox Hill Hospital in Manhattan and is an Assistant Professor of Medicine at the Zucker School of Medicine at Hofstra/Northwell. Dr. Schwimmer is available for expert witness consultations to both defense and plaintiff attorneys. He has reviewed and testified in cases involving acute kidney injury and kidney failure, hyperkalemia, hyponatremia, osmotic demyelination, rhabdomyolysis, electrolyte disorders, hypertension, urinary tract infections, pyelonephritis, life expectancy, end-stage renal disease, dialysis, and many other medical conditions. An award-winning physician-teacher of medical students and doctors, Dr. Schwimmer trained at New York-Presbyterian Hospital and the Columbia University College of Physicians & Surgeons. Dr. Schwimmer has pu...

New York, New York

Nephrology, Internal Medicine - Dialysis, Home Dialysis, Chronic Kidney Disease, Acute Kidney Injury, Renal Failure, Electrolyte Disturbances, Hyperkalemia, Hyponatremia, Hypercalcemia, Glomerulonephritis, Nephrotic Syndrome

Chief, Division of Nephrology, Mount Sinai Morningside and West. Medical Director, Dialysis, Upper Manhattan Dialysis Center. Yale and Harvard trained. Professor of Medicine, Icahn School of Medicine at Mount Sinai. Dr. Meisels is a nationally recognized expert in Nephrology and Dialysis. He is an active clinician and has been a speaker and moderator at numerous national meetings as well as an author of multiple publications in the field of kidney disease. He is an articulate speaker and is recognized for his clarity of thought and speech.

Cincinnati, Ohio

Nephrology - Kidneys, Hyperkalemia, Electrolyte Disorders, Dialysis, Hyponatremia, Rhabdomyolysis, Hemodialysis, Hypertension, Glomerulonephritis, Acute Kidney Injury, Acute Renal Failure, End Stage Renal Disease, Chronic Kidney Disease, Peritoneal Dialysis, Proteinuria, Pyelonephritis, Critical Care

Dr. Brian Revis was born and raised in Cincinnati. He received his undergraduate degree in physics from The Ohio State University and earned his medical degree at the University of Cincinnati. He completed his internal medicine residency at the University of Cincinnati where he was asked to stay on as a chief resident to lead outpatient internal medicine resident education. Following his chief residency year, Dr. Revis completed his nephrology fellowship at The Ohio State University. He has practiced at the Kidney and Hypertension Center in Cincinnati since 2012 and was proud to serve as president of his 35+ physician practice. He remains on the board of directors. Additionally, Dr. Revis provides clinical instruction to medical students, internal medicine residents, nephrology fellows, and nurse practitioner students in Greater Cincinnati. He is board certified in internal medicine and nephrology. Dr. Revis is licensed in Ohio, Kentucky, and Indiana. He has been featured as a T...

Columbus , Ohio

Nephrology, Interventional & Vascular Radiology - Kidney, Chronic kidney disease, Acute kidney injury, End stage renal disease, Electrolytes, Hemodialysis, Peritoneal dialysis, Dialysis disequilibrium, Lupus, Hyperkalemia, Hyponatremia, Hypertension, Glomerulonephritis, Rhabdomyolysis, Pyelonephritis, Central pontine myelinolysis

Dr. Ravish Shah is a board-certified nephrologist and interventional nephrologist with over a decade of active clinical and leadership experience. He completed his Internal Medicine residency at Southern Illinois University and Nephrology fellowship at The Ohio State University, where he later served as Assistant Professor. Since 2014, Dr. Shah has been in private practice, managing complex renal conditions including acute kidney injury (AKI), chronic kidney disease (CKD), end-stage renal disease (ESRD), dialysis-related complications, hypertension, and electrolyte disorders. He currently serves as Medical Director for inpatient and outpatient dialysis programs, providing oversight of clinical operations, regulatory compliance, and quality of care. As an interventional nephrologist, he performs angiograms, angioplasty, AV fistula and graft management, tunneled dialysis catheter placement, and peritoneal dialysis catheter procedures. His expertise allows him to evaluate vascular ac...