Our Team

Nathan D. Hatton, MD

Nathan D. Hatton, M.D. is an assistant professor in the Department of Internal Medicine, Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine at the University of Utah School of Medicine. He currently serves as the associate medical director of the Medical Intensive Care Unit at the University Hospital.He received his medica... Read More

Specialties: Critical Care, Pulmonary, Pulmonary Hypertension, Pulmonary Vascular Disease

Email: Nathan.Hatton@hsc.utah.edu

John J. Ryan, MD, MB BCh BAO

John J. Ryan MD, FACC, FAHA, is a cardiologist with extensive training and experience in research investigation and clinical patient care. He is an internationally renowned specialist in pulmonary hypertension and has an appointment in the Division of Cardiovascular Medicine at the University of Utah. Dr. Ryan has won more than ten university ... Read More

Specialties: Cardiac Imaging, Cardiology, Dyspnea, Echocardiography, General Cardiology, Heart Failure, Pulmonary Hypertension, Pulmonary Vascular Disease

Email: john.ryan@hsc.utah.edu

Jennalyn Mayeux, APRN

Jennalyn Mayeux joined the University of Utah Pulmonary Division in 2012 as a Nurse Practitioner working alongside expert physicians specialized in asthma and pulmonary arterial hypertension.  The Pulmonary Hypertension & Dyspnea Program quickly grew into a multi-disciplinary program focused on treating all types of pulmonary hyperten... Read More

Specialties: Dyspnea, Pulmonary, Pulmonary Hypertension

Email: Jennalyn.Mayeux@hsc.utah.edu

Erin S. Michaelis, APRN

Erin Michaelis, APRN is a nurse practitioner in the Department of Internal Medicine, Division of Cardiovascular Medicine, at the University of Utah School of Medicine. She currently serves as an Advanced Practice Clinician in the Pulmonary Hypertension/Dyspnea Center at the University Hospital.She received her advanced degree from University of Cal... Read More

Specialties: Cardiology, Dyspnea, Pulmonary Hypertension, Pulmonary Vascular Disease

Email: erin.michaelis@hsc.utah.edu

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