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Allison Hays, M.D.

Headshot of Allison Hays
  • Medical Director of Echocardiography Programs of the Johns Hopkins Hospital
  • Associate Professor of Medicine


Cardiology, Cardiovascular Disease, Heart Disease, Non-invasive Imaging more

Research Interests

Non-invasive imaging of coronary arteries; Magnetic resonance angiography; echocardiography; HIV; Women's Health; HfPEF more

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The Johns Hopkins Hospital

Appointment Phone: 443-997-0270
600 N. Wolfe Street
Carnegie 565B
Baltimore, MD 21287 map
Phone: 410-502-7861

Johns Hopkins Outpatient Center

Appointment Phone: 443-997-0270
601 N. Caroline St.
Baltimore, MD 21287 map
Phone: 410-502-7861


Dr. Allison Hays is a general cardiologist and Medical Director of Echocardiography Programs at the Johns Hopkins Hospital. She is also an assistant professor at the Johns Hopkins University School of Medicine.

Dr. Hays graduated from Stanford University with degrees in biology and English. She received her medical training at the Columbia University College of Physicians and Surgeons and did her residency at the New York Presbyterian Hospital at Columbia. Dr. Hays pursued cardiology fellowships at New York University Medical Center and at the Johns Hopkins University School of Medicine.

Dr. Hays studies ways to use noninvasive imaging to detect cardiovascular disease. She has advanced multimodality imaging training from Johns Hopkins and attends in the Adult Echocardiography Lab at Johns Hopkins Hospital. In terms of research, she uses Cardiac MRI as a tool to study coronary and systemic endothelial function. more


  • Medical Director of Echocardiography Programs of the Johns Hopkins Hospital
  • Associate Professor of Medicine

Departments / Divisions

Centers & Institutes



  • MD; Columbia University College of Physicians and Surgeons (2002)


  • Internal Medicine; New York-Presbyterian/Columbia University Irving Medical Center (2005)


  • Cardiovascular Disease; Johns Hopkins University School of Medicine (2009)
  • Cardiology; New York University Medical Center (2007)

Board Certifications

  • American Board of Internal Medicine (Cardiovascular Disease) (2019)

Research & Publications

Clinical Trial Keywords

Cardiac MRI; coronary endothelial function

Selected Publications

Hays AG1, Hirsch GA, Kelle S, Gerstenblith G, Weiss RG, Stuber M. Noninvasive visualization of coronary artery endothelial function in healthy subjects and in patients with coronary artery disease. J Am Coll Cardiol. 2010 Nov 9;56(20):1657-65. doi: 10.1016/j.jacc.2010.06.036.

Hays AG1, Kelle S, Hirsch GA, Soleimanifard S, Yu J, Agarwal HK, Gerstenblith G, Schär M, Stuber M, Weiss RG. Regional coronary endothelial function is closely related to local early coronary atherosclerosis in patients with mild coronary artery disease: pilot study. Circ Cardiovasc Imaging. 2012 May 1;5(3):341-8. doi: 10.1161/CIRCIMAGING.111.969691. Epub 2012 Apr 5.

Hays AG1, Iantorno M2, Soleimanifard S3, Steinberg A1, Schär M4, Gerstenblith G1, Stuber M5, Weiss RG6. Coronary vasomotor responses to isometric handgrip exercise are primarily mediated by nitric oxide: a noninvasive MRI test of coronary endothelial function. Am J Physiol Heart Circ Physiol. 2015 Jun 1;308(11):H1343-50. doi: 10.1152/ajpheart.00023.2015. Epub 2015 Mar 27.

Iantorno M1, Hays AG1, Schär M1, Krishnaswamy R1, Soleimanifard S1, Steinberg A1, Stuber M1, Gerstenblith G1, Weiss RG2. Simultaneous Noninvasive Assessment of Systemic and Coronary Endothelial Function. Circ Cardiovasc Imaging. 2016 Mar;9(3):e003954. doi: 10.1161/CIRCIMAGING.115.003954. 

Hays AG1, Stuber M, Hirsch GA, Yu J, Schär M, Weiss RG, Gerstenblith G, Kelle S. Non-invasive detection of coronary endothelial response to sequential handgrip exercise in coronary artery disease patients and healthy adults. PLoS One. 2013;8(3):e58047. doi: 10.1371/journal.pone.0058047. Epub 2013 Mar 11.

Activities & Honors


  • PJ Schafer Cardiovascular Research Award at Johns Hopkins, Johns Hopkins and PJ Schafer Foundation
  • Johns Hopkins University Clinician Scientist Award, Johns Hopkins University
  • American College of Cardiology/Merck Cardiovascular Disease Research Award, American College of Cardiology
  • Finalist, Melvin Judkins Young Investigator Award, American Heart Association
  • SCMR (Society of Cardiovascular Magnetic Resonance) Young Investigator Award, Society of Cardiovascular Magnetic Resonance
  • Fellow, American Society of Echocardiography)


  • American Heart Association
  • Society of Cardiovascular Magnetic Resonance
  • American Society of Echocardiography

Videos & Media

Recent News Articles and Media Coverage

A noninvasive method gets to the heart of endothelium function

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