Board-Certified Physician
MD, PhD · Cardiology & Internal Medicine
Dedicated to advancing patient care through evidence-based medicine, compassionate treatment, and cutting-edge cardiovascular research.
Years Experience
Patients Treated
Publications
Medicine is not just science — it is an art of listening, understanding, and healing.
About Me
Dr. Sarah Hartwell is a board-certified cardiologist and internist with over 18 years of clinical experience. She completed her medical training at Harvard Medical School and her cardiology fellowship at Johns Hopkins Hospital.
Her clinical practice focuses on preventive cardiology, heart failure management, and complex coronary artery disease. Alongside her clinical work, she leads an active research laboratory investigating novel biomarkers of cardiac injury.
Medical Degree
Harvard Medical School
Fellowship
Johns Hopkins Hospital
Board Certification
ABIM · Cardiology
Current Role
Dir. of Preventive Cardiology
Clinical Expertise
Comprehensive risk assessment and personalized prevention strategies for cardiovascular disease, including lipid management and lifestyle intervention.
Advanced management of acute and chronic heart failure, including device therapy, hemodynamic monitoring, and advanced heart failure therapies.
Leading clinical trials and translational research on novel cardiac biomarkers, predictive algorithms, and therapeutic targets in ischemic heart disease.
Expert diagnosis and management of complex CAD, including medical optimization, risk stratification, and coordination of interventional procedures.
Interpretation of echocardiography, stress imaging, CT angiography, and cardiac MRI to guide clinical decision-making and treatment planning.
Mentoring the next generation of physicians through fellowship training, grand rounds, and curriculum development in clinical cardiology.
Career Path
2016 — Present
Massachusetts General Hospital, Boston, MA
Leading a multidisciplinary team of 12 cardiologists and researchers focused on reducing cardiovascular events through precision prevention programs. Overseeing $4.2M in active research grants.
2011 — 2016
Stanford University Medical Center, Palo Alto, CA
Established the Cardiac Biomarker Research Laboratory; published 28 peer-reviewed articles; received the NIH Early Career Investigator Award (2013).
2008 — 2011
Johns Hopkins Hospital, Baltimore, MD
Advanced cardiovascular medicine training with subspecialty focus in heart failure and cardiac imaging. Recipient of the Osler Fellow of the Year award (2010).
2005 — 2008
Brigham and Women's Hospital, Boston, MA
Chief Medical Resident in final year; supervised junior residents and medical students across inpatient medicine and subspecialty rotations.
Research & Academia
High-Sensitivity Cardiac Troponin I in Subclinical Atherosclerosis Risk Prediction
New England Journal of Medicine · Hartwell SE, et al.
Machine Learning Algorithms for Early Heart Failure Detection: A Multicenter Validation Study
JAMA Cardiology · Hartwell SE, Chen R, Patel M, et al.
Coronary Microvascular Dysfunction and Long-Term Cardiovascular Outcomes in Women
Circulation · Hartwell SE, Torres JA, et al.
Statin Therapy Dose Optimization Using Pharmacogenomic Profiling
Lancet · Hartwell SE, Kumar A, et al.
Patient Stories
Dr. Hartwell's thoroughness and warmth are unparalleled. She explained my condition in terms I could understand and gave me a clear path forward. I feel genuinely cared for.
After three other cardiologists missed my diagnosis, Dr. Hartwell identified the issue within the first visit. Her depth of knowledge is remarkable. She quite literally saved my life.
I was terrified about my diagnosis. Dr. Hartwell took the time to sit with me, answer every question, and build a comprehensive plan. Her preventive approach changed my entire lifestyle.
As a fellow physician, I refer my most complex cardiac cases to Dr. Hartwell with full confidence. Her clinical acumen and research expertise make her one of the finest cardiologists in the field.
Get In Touch
Whether you are seeking a second opinion, a preventive assessment, or ongoing cardiac care, Dr. Hartwell welcomes new patients. Please complete the form or reach out directly.
Office Address
55 Fruit Street, Wang Building
Boston, MA 02114
Phone
(617) 724-0000
s.hartwell@mgh.harvard.edu
Office Hours
Mon–Fri: 8:00 AM – 5:00 PM