Mark J Sarnak MD

Professor, Medicine, Tufts Medical Center

800 Washington StBox 391, Tufts Medical CenterBoston, MA 02111
Phone+1 617-636-5866

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Summary

Dr. Mark Sarnak is a nephrologist based in Boston, MA, who has been a Professor at Tufts University School of Medicine since 2010. He completed his medical school at the College of Physicians and Surgeons of Columbia University, his residency in Internal Medicine at Mass General Hospital, and his nephrology fellowship at Tufts Medical Center. He has been Chief of the Division of Nephrology at Tufts Medical Center since 2017. He is an active clinician and has been recognized in Boston Magazine Best Doctors for fifteen of the last sixteen years. His research interest is in cardiovascular disease and kidney disease.

Education & Training

Tufts Medical CenterFellowship, Nephrology, 1996 - 1998
Mass General Brigham/Massachusetts General HospitalResidency, Internal Medicine, 1993 - 1996
Columbia University Vagelos College of Physicians and SurgeonsClass of 1993

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Certifications & Licensure

MA State Medical License 1995 - 2027
NH State Medical License 2024 - 2024
American Board of Internal Medicine Nephrology

Awards, Honors, & Recognition

Boston Magazine Castle Connolly, 2010-2016, 2018-2024
CMS Meaningful Use Stage 1 Certification eClinicalWorks, eClinicalWorks, LLC, 2013, 2015-2016
CMS Meaningful Use Stage 2 Certification eClinicalWorks, eClinicalWorks, LLC, 2013, 2015-2016

Clinical Trials

Niacin and Endothelial Function in Early CKD
COMPLETED
PHASE4

Publications & Presentations

PubMed

Best in Class? The Comparative Effectiveness of Glucagon-Like Peptide 1 Receptor Agonists in Preventing Incident CKD Stage 3 or Higher.
Allison C Reaves, Mark J Sarnak
American Journal of Kidney Diseases. 2026-09-01
International Society of Nephrology International Expert Forum: Exploring the Nexus of Cardiovascular-Kidney-Metabolic Health.
Roberto Pecoits-Filho, Debasish Banerjee, Meg J Jardine, Brendon Neuen, Maria Jose Soler
Kidney International. 2026-07-28
Pulmonary Hypertension, Right Ventricular Remodeling and Outcomes in Chronic Kidney Disease.
Marcelle Tuttle, Nicole F Ruopp, Mark J Sarnak
Clinical Journal of the American Society of Nephrology. 2026-07-27

Journal Articles

PTH, FGF23, and Intensive Blood Pressure Lowering in Chronic Kidney Disease Participants in SPRINT
Udayan Y Bhatt, Clinton B Wright, Vasilios Papademetriou, Joachim H Ix, Michael G Shlipak, Alfred K Cheung, Mark J Sarnak, Jing Chen, Charles Ginsberg, Glenn M Chertow..., Journal of the American Society of Nephrology
Kidney Damage Biomarkers and Incident Chronic Kidney Disease During Blood Pressure Reduction: A Case–Control Study
Paul Drawz, Joachim H Ix, Michel Chonchol, Mark J Sarnak, Chirag R Parikh, Michael G Shlipak, Alfred K Cheung, Annals of Internal Medicine
Acute Declines in Renal Function During Intensive BP Lowering and Long-Term Risk of Death
Kenneth Jamerson, Mark J Sarnak, Miroslaw Smogorzewski, Joachim H Ix, Journal of the American Society of Nephrology

Lectures

Aging and Wasting in CKD
American Society of Nephrology Kidney Week 2019 - Washington, D.C. - 11/8/2019

Authored Content

Urinary Biomarkers of Kidney Tubular Damage and Risk of Cardiovascular Disease and Mortality in EldersMarch 2018
Urinary Biomarkers of Kidney Tubular Damage and Risk of Cardiovascular Disease and Mortality in EldersMarch 2018

Press Mentions

Cognitive Impairment Risk Higher in the CKD Population, Especially in MidlifeOctober 23rd, 2024
Can New Technology Make Home Dialysis a More Realistic Option?November 10th, 2022
Atrial Fibrillation Risk Rises with Decreasing Kidney FunctionAugust 11th, 2017

Grant Support

Dimensions of Kidney Tubule Health and Atherosclerotic Cardiovascular Disease and Heart Failure in Middle-Aged and Older AdultsTUFTS MEDICAL CENTER2022–2026
Acute declines in kidney function during blood pressure interventions in CKDUNIVERSITY OF CALIFORNIA, SAN FRANCISCO2020–2025
Role of Mitochondrial Health in Acute and Chronic Kidney Disease in Older AdultsNORTHERN CALIFORNIA INSTITUTE/RES/EDU2005–2025
Cognition And DialysisNational Institute Of Diabetes And Digestive And Kidney Diseases2008–2011
Chronic Kidney Disease, Vascular Disease And AgingNational Institute Of Diabetes And Digestive And Kidney Diseases2007–2011