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Bernard Georges Jaar, M.D., M.P.H.

Headshot of Bernard Georges Jaar
  • Clinical Director, Division of Nephrology
  • Associate Professor of Medicine

Specializes in: Adults (18+ years)


Languages: English, French


Acute Kidney Injury (AKI), Chronic Kidney Disease, Dialysis, Hemodialysis, High Blood Pressure (Hypertension), Nephrology, Peritoneal Dialysis more

Research Interests

Epidemiology of Chronic Kidney Disease and end-stage kidney disease; survival in dialysis patients; peripheral arterial disease; environmental risk factors for kidney disease more

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Outside of Maryland & Washington D.C.

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The Johns Hopkins Hospital

Appointment Phone: 410-955-0670
600 N. Wolfe Street
Sheikh Zayed Tower Suite 416
Baltimore, MD 21287 map
Phone: 410-955-5268

Johns Hopkins Outpatient Center (now called Levi Watkins, Jr., M.D., Outpatient Center)

Appointment Phone: 410-955-0670
601 N. Caroline St.
Baltimore, MD 21287 map


Dr. Bernard Jaar is an associate professor of medicine at the Johns Hopkins University School of Medicine. He holds a joint appointment in epidemiology at the Johns Hopkins Bloomberg School of Public Health. His areas of clinical expertise include chronic kidney disease and all dialysis modalities.

Dr. Jaar earned his M.D. from Faculte de Medecine et de Pharmacie of the State University of Haiti. He completed nephrology training at Hopitaux de Paris (Hopital Tenon, Hopital Saint Antoine, Hopital Saint Louis) University of Paris V, France. He subsequently completed an internal medicine residency at Graduate Hospital in Philadelphia and a nephrology fellowship at the Johns Hopkins Hospital, in addition to a post-doctoral fellowship in Epidemiology and a Master in Public Health at the Johns Hopkins Bloomberg School of Public Health.

His research interests include epidemiology of chronic kidney disease and end-stage kidney disease, particularly survival in dialysis patients, peripheral arterial disease and environmental risk factors for kidney disease.

Dr. Jaar was recognized with the C. Lockard Conley Award 2021 by the American College of Physician Maryland Chapter for contributions to resident education / research and the National Kidney Foundation Garabed Eknoyan Award 2022 for promoting the mission of NKF in making the lives of people with kidney disease better.  He is a member of several professional organizations, including the International Society of Nephrology, American Society of Nephrology, National Kidney Foundation, American College of Physicians and the International Society of Peritoneal dialysis. more


  • Clinical Director, Division of Nephrology
  • Associate Professor of Medicine

Departments / Divisions

Centers & Institutes



  • MD; Faculte De Medecine Et De Pharmacie (1987)


  • Internal Medicine; Graduate Hospital (2000)
  • Nephrology; University of Paris Descartes (1992)


  • Epidemiology; Johns Hopkins Bloomberg School of Public Health (1997)
  • Nephrology; Johns Hopkins University School of Medicine (2002)
  • UFR de Medecine Saint-Antoine (1993)

Board Certifications

  • American Board of Internal Medicine (Nephrology) (2004)

Research & Publications

Research Summary

Dr. Jaar is interested in the conduct of epidemiologic studies in the field of chronic kidney disease / end-stage kidney disease and related complications. His personal research interest is currently focused on outcome studies of peripheral arterial disease (PAD) in end-stage renal disease (ESRD) patients and morbidity and mortality of ESRD patients by dialysis modality. In addition to leading the Cardiovascular Endpoint Committee of the CHOICE study, he is involved in several research projects within the Division of Nephrology and also at the Welch Center for Prevention, Epidemiology and Clinical Research, and the Department of Environmental Health at the School of Public Health.

Contact for Research Inquiries

Division of Nephrology
4940 Eastern Avenue
301 Building, Suite 2500
Baltimore, MD 21224 map
Phone: 410-550-1663

Activities & Honors


  • Valedictorian, School of Medicine and Pharmacy, State University of Haiti, State University of Haiti, 1987
  • Valedictorian, Necker School of Medicine,, University of Paris V, 1992
  • The Boehringer Mannheim Prize, 1992
  • The Victoria Prize, 1999
  • Ruth L. Kirschstein National Research Service Award to train in Renal Disease Epidemiology, National Institute of Diabetes, Digestive and Kidney Diseases, 2001 - 2003
  • Richard Ross Clinician Scientist Award, Johns Hopkins University - School of Medicine., 2003 - 2004
  • Junior Faculty Clinical Research Award. Department of Medicine Johns Hopkins University School of Medicine for the project entitle: Dialysis Modality and Mortality in a National Cohort: The CHOICE Study, 2004
  • Fellow, American Society of Nephrology, 2005
  • John Rogers Excellence in Teaching Award, 2009
  • Volunteer of the Year Award, National Kidney Foundation of Maryland, 2013
  • C. Lockard Conley Award, ACP of Maryland, 2021
  • Garabed Eknoyan Award, National Kidney Foundation, 2022


  • American College of Physicians

    American College of Physicians, a national organization of internists

  • International Society of Peritoneal Dialysis, 2017

    American Medical Association, the largest association of physicians and medical students in the United States

  • American Society of Nephrology

    American Society of Nephrology, an organization that aims to prevent, treat and cure kidney diseases

  • International Society of Nephrology

    International Society of Nephrology, an international organization representing specialists in nephrology

  • National Kidney Foundation

    National Kidney Foundation, an organization dedicated to the awareness, prevention and treatment of kidney disease

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