Jose Joglar, M.D.

Program Director, Clinical Cardiac Electrophysiology Fellowship Program

  • Elizabeth Thaxton and Ellis Batten Page Professorship in Cardiac Electrophysiology Research
  • Internal Medicine - Cardiology
  • Genetic Disorders - Familial Arrhythmias
  • Heart Rhythm Disorders


Jose Joglar, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center. He heads the arrhythmia program for UT Southwestern, and he holds the Elizabeth Thaxton Page and Ellis Batten Page Professorship in Clinical Cardiac Electrophysiology Research.

After earning his medical degree at the University of Puerto Rico’s School of Medicine, Dr. Joglar completed his residency in internal medicine, a fellowship in cardiology, and a fellowship in clinical cardiology electrophysiology at UT Southwestern.

He is now the director of the Clinical Cardiac Electrophysiology Program, the Electrophysiology Laboratory and Device Clinic, and the Invasive Cardiac Laboratories (Cath and EP Labs).

He conducts research in defibrillator medicine and leads his team in a variety of clinical trials for new devices and drugs to treat heart rhythm problems.

A widely published author and editor, Dr. Joglar serves on the editorial board of the Journal of Cardiovascular Electrophysiology and reviews articles for the New England Journal of Medicine, Heart Rhythm Society Journal, American Heart Journal, American Journal of Cardiology, and Pacing and Clinical Electrophysiology.

He is a member of the Dallas County Medical Society, and he is a Fellow of the Heart Rhythm Society, the American Heart Association (AHA) and the American College of Cardiology (ACC). In 2014 he served on the writing committee for the AHA Guidelines of Cardiac Arrest in Pregnancy and is co-chair of the AHA/ACC Guidelines for Supraventricular Tachycardia.

He has been recognized as a D Magazine Best Doctor for Cardiac Electrophysiology nearly every year since 2011.

Meet Dr. Joglar

Arrhythmia Specialist in Dallas

Heart rhythm disorder specialist Jose Joglar, M.D., helps patients of all ages and with a variety of conditions set their heartbeats back on track.

The leader of the arrhythmia program at UT Southwestern Medical Center, Dr. Joglar is an expert at creating solutions for the most complex arrhythmias, also called heart rhythm disorders.

Arrhythmias occur because of malfunctions in the heart’s electrical system, and their causes aren’t always clear. But in many cases the treatments offered by Dr. Joglar and his team, such as placement of a pacemaker or defibrillator, or minimally invasive surgeries to cauterize the malfunctioning areas in the heart, can cure the problem completely.

“I’m particularly proud of the fact that we are able to take on very difficult cases and help people in our community who haven’t found good solutions elsewhere,” says Dr. Joglar.  

Dr. Joglar’s group offers arrhythmia interventions for patients who suffer from a wide range of conditions, including those with advanced heart failure and many others who previously wouldn’t have been a candidate for a pacemaker or defibrillator.

For instance, sometimes patients need a device but they have blockages in their blood vessels, which could prevent a successful intervention. Dr. Joglar’s team finds ways to help those people.

“We also participate in clinical trials of new devices, which means we can offer the latest technology,” Dr. Joglar says. “That also expands what we can do for patients with complex conditions.”

Dr. Joglar, who has been named a D Magazine Best Doctor for Cardiac Electrophysiology nearly every year since 2011, says he originally fell in love with this field of medicine because he enjoyed the challenge of it. But today what he loves most is taking care of his patients.

“I talk to my patients from the heart,” he says. “I am always proud to offer my patients options and possibilities, no matter their condition. We make sure our patients always leave very happy.”

See More

Education & Training
  • Fellowship - UT Southwestern Medical Center (1997-1998), Cardiac Electrophysiology
  • Fellowship - UT Southwestern Medical Center (1994-1997), Cardiology
  • Residency - UT Southwestern Medical Center (1991-1994), Internal Medicine
  • Medical School - University of Puerto Rico School of Medicine (1987-1991)
Professional Associations & Affiliations
  • Heart Rhythm Society
  • American Heart Association
  • American College of Cardiology
Honors & Awards
  • D Magazine Best Doctor, 2011-2012, 2014-2022
  • Elizabeth Thaxton Page and Ellis Batten Page Professorship in Clinical Cardiac Electrophysiology Research 2003, Chair
Books & Publications
  • Asymptomatic atrial fibrillation
  • Sudden cardiac death
  • Pacemaker technology
  • Cardioversion and defibrillation
  • Automated external defibrillators

Clinical Focus

  • Genetic Disorders - Familial Arrhythmias
  • Heart Rhythm Disorders
  • Heart Rhythm Treatment/Electrophysiology

See More