Matthew John Czarny, M.D.

Headshot of Matthew John Czarny
  • Assistant Professor of Medicine


Acute Coronary Syndrome (ACS), Aortic Stenosis, Aortic Valve Repair, Atrial Septal Defects (ASD), Cardiology, Coronary Artery Disease, Coronary Artery Stenting, Hypertrophic Cardiomyopathy, Minimally Invasive Aortic Valve Replacement, Minimally Invasive Mitral Valve Repair, Patent Foramen Ovale, Percutaneous Coronary Intervention (PCI), Transcatheter Aortic Valve Replacement (TAVR) more

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Main Phone

Outside of Maryland & Washington D.C.

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The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-614-1132
1800 Orleans St.
Sheikh Zayed Tower, Suite 7125
Baltimore, MD 21287 map
Phone: 410-614-1132 | Fax: 410-367-2224

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

601 N. Caroline St.
Baltimore, MD 21287 map
Phone: 410-614-1132 | Fax: 410-367-2224

Johns Hopkins Bayview Medical Center

Appointment Phone: 410-614-1132
4940 Eastern Avenue
Baltimore, MD 21224 map
Phone: 410-614-1132 | Fax: 410-550-1183


Originally from Wisconsin, Dr. Czarny attended the University of Wisconsin where he majored in molecular biology.  After medical school at the Johns Hopkins University School of Medicine, he completed an internal medicine residency at the Brigham and Women’s Hospital in Boston followed by cardiovascular disease, interventional cardiology, and structural heart disease fellowships at Johns Hopkins.  Currently, he is a faculty member in interventional cardiology and performs heart catheterizations and coronary artery stenting for patients with stable coronary artery disease (CAD) and myocardial infarctions ("heart attacks") at both the Johns Hopkins Hospital and the Johns Hopkins Bayview Medical Center.  He is also a member of the Structural Heart Disease team and performs minimally invasive, catheter-based treatments for structural heart disease at the Johns Hopkins Hospital including transcatheter aortic valve replacement (TAVR) for aortic valve stenosis, valve repair/replacement procedures for mitral valve regurgitation and stenosis, patent foramen ovale closure, atrial septal defect closure, alcohol septal ablation for hypertrophic cardiomyopathy, and left atrial appendage occlusion with the Watchman(TM) device.  He sees patients in his structural heart disease clinics at both the Johns Hopkins Hospital and the Johns Hopkins Bayview Medical Center.

Dr. Czarny's research interests include the safety of cardiac stenting at hospitals without cardiac surgery backup and outcomes of catheter-based structural heart procedures. more


  • Assistant Professor of Medicine

Departments / Divisions



  • MD; Johns Hopkins University School of Medicine (2010)


  • Internal Medicine; Brigham and Women's Hospital (2013)


  • Cardiology; Johns Hopkins University School of Medicine (2017)

Board Certifications

  • American Board of Internal Medicine (Cardiovascular Disease) (2016)
  • American Board of Internal Medicine (Internal Medicine) (2013)
  • American Board of Internal Medicine (Interventional Cardiology) (2017)

Research & Publications

Research Summary

Clinical outcomes research in interventional cardiology including analyses of large clinical data sets.

Selected Publications

Czarny MJ, Hasan RK, Post WS, Chacko M, Schena S, Resar JR. Inequities in aortic stenosis and aortic valve replacement between Black/African-American, White, and Hispanic residents of Maryland.  J Am Heart Assoc 2021; 10(14):e017487

Czarny MJ, Shah SJ, Whelton SP, Blaha MJ, Tsai MY, Denis R, Bertoni A, Post WS.  Race/ethnicity and prevalence of aortic stenosis by echocardiography in the Multi-Ethnic Study of Atherosclerosis.  J Am Coll Cardiol 2021; 78(2):195-197

Czarny MJ, Miller JM, Naiman DQ, Hwang CW, Hasan RK, Lemmon CC, Aversano T. Non-primary PCI at hospitals without cardiac surgery on-site: Consistent outcomes for all? Am Heart J 2017; accepted 10/30/17

Czarny MJ, Hwang CW, Naiman DQ, Lemmon CC, Hasan RK, Wang T, Aversano T. Heparin versus bivalirudin for non-primary percutaneous coronary intervention in a community cohort: A post-hoc analysis of the CPORT-E trial. Catheter Cardiovasc Interv 2017;90(3):366-77

Czarny MJ and Resar JR. Does bivalirudin improve outcomes in contemporary percutaneous coronary intervention? J Cardiovasc Disord 2016;3(1):1020

Activities & Honors


  • Fellow, American College of Cardiology
  • Fellow, Society for Cardiovascular Angiography and Interventions

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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