Undergraduate education
University of Kansas[1]
James Daniels
Professor
UT Southwestern Medical Center · Date not established · Last known relationship
About
Alongside arrhythmia care and leadership of the Pacemaker and Defibrillator Clinic, he lectures to cardiology, electrophysiology, and internal medicine trainees and studies implantable devices and atrial fibrillation.
Daniels completed medical school at UT Southwestern, internal medicine training at the University of New Mexico, and fellowships in cardiovascular disease and cardiac electrophysiology at UT Southwestern.
James Daniels is a professor specializing in cardiac arrhythmias and directs the Pacemaker and Defibrillator Clinic. His research interests include MRI-compatible implanted cardiac devices, atrial fibrillation, myocardial fibrosis, and reducing fluoroscopy exposure.
Research interests
Atrial fibrillation · Cardiac arrhythmias · Cardiac electrophysiology · Fluoroscopy reduction · Implantable cardiac devices · MRI-compatible cardiac devices · Myocardial fibrosis
Training
Reviewed sources document Undergraduate education: University of Kansas (Cell Biology), Undergraduate education: University of Kansas (Chemistry), Medical school: UT Southwestern Medical School, and Residency: University of New Mexico Health Science Center (Internal Medicine), plus 3 more training records.
Explore education and trainingResearch
Reviewed sources document Atrial fibrillation, Cardiac arrhythmias, Cardiac electrophysiology, and Fluoroscopy reduction, plus 3 more research items. Publication attribution is still being resolved.
Explore researchDocumented history
Dated relationships supported by published source records. Inferred dates are labeled.
Date not established
Professor
UT Southwestern Medical Center
UT Southwestern Division of Cardiology faculty directory
Education and career
Reviewed Sep 7, 2026Medical school
UT Southwestern Medical School[1]
Through 2001
Residency
University of New Mexico Health Science Center (Internal Medicine)[1]
Through 2004
Residency
University of New Mexico Health Science Center (Internal Medicine)[1]
Through 2005
Fellowship
UT Southwestern Medical Center (Cardiac Electrophysiology)[1]
Through 2009
Fellowship
UT Southwestern Medical Center (Cardiovascular Disease)[1]
Through 2008
Professional role
Professor[2]
Research
Research interests
Atrial fibrillation[1]
Research interests
Cardiac arrhythmias[1]
Research interests
Cardiac electrophysiology[1]
Research interests
Fluoroscopy reduction[1]
Research interests
Implantable cardiac devices[1]
Research interests
MRI-compatible cardiac devices[1]
Research interests
Myocardial fibrosis[1]
Resources
Publications
0 attributed works. Counts reflect resolved authorship and may be incomplete.
No publications resolved yet.
Sources
Sources are listed once and connected to each accepted claim they support. Excerpts preserve the source language used in the review.
- [1]James Daniels, M.D. - Faculty Profile - UT Southwestern
20 source claims · Reviewed Sep 7, 2026
Biographical context: Alongside arrhythmia care and leadership of the Pacemaker and Defibrillator Clinic, he lectures to cardiology, electrophysiology, and internal medicine trainees and studies implantable devices and atrial fibrillation.
Biography James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic. Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern. Certified by the American Board of Internal Medicine in cardiovascular disease and clinical cardiac electrophysiology, Dr. Daniels joined the UT Southwestern faculty in 2009. In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation. Dr. Daniels has published a number of peer-reviewed articles and delivered several invited lectures related to cardiac arrhythmias. He serves as an ad hoc reviewer for publications that include the Journal of Cardiovascular Electrophysiology, Journal of Investigative Medicine, and American Journal of Cardiology. Dr. Daniels is an active member of several professional organizations, including the American Heart Association, American College of Cardiology, Heart Rhythm Society, and the American Medical Association. Dr. Daniels was included in D Magazine's Best Doctors list for 2022, 2021, 2020, and 2018. Personal Note Dr. Daniels and his wife, a dermatologist, have three children.
Biographical context: Daniels completed medical school at UT Southwestern, internal medicine training at the University of New Mexico, and fellowships in cardiovascular disease and cardiac electrophysiology at UT Southwestern.
Biography James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic. Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern. Certified by the American Board of Internal Medicine in cardiovascular disease and clinical cardiac electrophysiology, Dr. Daniels joined the UT Southwestern faculty in 2009. In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation. Dr. Daniels has published a number of peer-reviewed articles and delivered several invited lectures related to cardiac arrhythmias. He serves as an ad hoc reviewer for publications that include the Journal of Cardiovascular Electrophysiology, Journal of Investigative Medicine, and American Journal of Cardiology. Dr. Daniels is an active member of several professional organizations, including the American Heart Association, American College of Cardiology, Heart Rhythm Society, and the American Medical Association. Dr. Daniels was included in D Magazine's Best Doctors list for 2022, 2021, 2020, and 2018. Personal Note Dr. Daniels and his wife, a dermatologist, have three children.
Biographical context: James Daniels is a professor specializing in cardiac arrhythmias and directs the Pacemaker and Defibrillator Clinic. His research interests include MRI-compatible implanted cardiac devices, atrial fibrillation, myocardial fibrosis, and reducing fluoroscopy exposure.
Biography James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic. Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern. Certified by the American Board of Internal Medicine in cardiovascular disease and clinical cardiac electrophysiology, Dr. Daniels joined the UT Southwestern faculty in 2009. In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation. Dr. Daniels has published a number of peer-reviewed articles and delivered several invited lectures related to cardiac arrhythmias. He serves as an ad hoc reviewer for publications that include the Journal of Cardiovascular Electrophysiology, Journal of Investigative Medicine, and American Journal of Cardiology. Dr. Daniels is an active member of several professional organizations, including the American Heart Association, American College of Cardiology, Heart Rhythm Society, and the American Medical Association. Dr. Daniels was included in D Magazine's Best Doctors list for 2022, 2021, 2020, and 2018. Personal Note Dr. Daniels and his wife, a dermatologist, have three children.
Fellowship: UT Southwestern Medical Center (Cardiac Electrophysiology)
Through 2009
Education Medical Education UT Southwestern Medical School (2001) Residency University of New Mexico Health Science Center (2004), Internal Medicine Residency University of New Mexico Health Science Center (2005), Internal Medicine Fellowship UT Southwestern Medical Center (2008), Cardiovascular Disease Fellowship UT Southwestern Medical Center (2009), Cardiac Electrophysiology
Fellowship: UT Southwestern Medical Center (Cardiovascular Disease)
Through 2008
Education Medical Education UT Southwestern Medical School (2001) Residency University of New Mexico Health Science Center (2004), Internal Medicine Residency University of New Mexico Health Science Center (2005), Internal Medicine Fellowship UT Southwestern Medical Center (2008), Cardiovascular Disease Fellowship UT Southwestern Medical Center (2009), Cardiac Electrophysiology
Official headshot: Portrait
<img src="https://profileplus.swmed.edu/facultydata/46951/images/daniels-james-inset.jpg" class="card__image" itemprop="image" alt="James Daniels, M.D. " style="max-width:200px;" />
Medical school: UT Southwestern Medical School
Through 2001
Education Medical Education UT Southwestern Medical School (2001) Residency University of New Mexico Health Science Center (2004), Internal Medicine Residency University of New Mexico Health Science Center (2005), Internal Medicine Fellowship UT Southwestern Medical Center (2008), Cardiovascular Disease Fellowship UT Southwestern Medical Center (2009), Cardiac Electrophysiology
Official profile: Official profile
Biography James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic. Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern. Certified by the American Board of Internal Medicine in cardiovascular disease and clinical cardiac electrophysiology, Dr. Daniels joined the UT Southwestern faculty in 2009. In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation. Dr. Daniels has published a number of peer-reviewed articles and delivered several invited lectures related to cardiac arrhythmias. He serves as an ad hoc reviewer for publications that include the Journal of Cardiovascular Electrophysiology, Journal of Investigative Medicine, and American Journal of Cardiology. Dr. Daniels is an active member of several professional organizations, including the American Heart Association, American College of Cardiology, Heart Rhythm Society, and the American Medical Association. Dr. Daniels was included in D Magazine's Best Doctors list for 2022, 2021, 2020, and 2018. Personal Note Dr. Daniels and his wife, a dermatologist, have three children.
Research interests: Atrial fibrillation
In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation.
Research interests: Cardiac arrhythmias
James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic.
Research interests: Cardiac electrophysiology
Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern.
Research interests: Fluoroscopy reduction
James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic.
Research interests: Implantable cardiac devices
In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation.
Research interests: MRI-compatible cardiac devices
James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic.
Research interests: Myocardial fibrosis
Research Interest Aldosterone antagonism to reduce myocardial fibrosis and arrhythmogenesis Cosmetic pacemaker and defibrillator implantation Reduction of procedural fluoroscopy (X-ray) exposure
Residency: University of New Mexico Health Science Center (Internal Medicine)
Through 2004
Education Medical Education UT Southwestern Medical School (2001) Residency University of New Mexico Health Science Center (2004), Internal Medicine Residency University of New Mexico Health Science Center (2005), Internal Medicine Fellowship UT Southwestern Medical Center (2008), Cardiovascular Disease Fellowship UT Southwestern Medical Center (2009), Cardiac Electrophysiology
Residency: University of New Mexico Health Science Center (Internal Medicine)
Through 2005
Education Medical Education UT Southwestern Medical School (2001) Residency University of New Mexico Health Science Center (2004), Internal Medicine Residency University of New Mexico Health Science Center (2005), Internal Medicine Fellowship UT Southwestern Medical Center (2008), Cardiovascular Disease Fellowship UT Southwestern Medical Center (2009), Cardiac Electrophysiology
Resource: Pacemaker and Defibrillator Clinic
<a href="https://utswmed.org/locations/wcb3/clinical-heart-and-vascular-center/">Pacemaker and Defibrillator Clinic</a>
Undergraduate education: University of Kansas (Cell Biology)
Biography James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic. Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern. Certified by the American Board of Internal Medicine in cardiovascular disease and clinical cardiac electrophysiology, Dr. Daniels joined the UT Southwestern faculty in 2009. In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation. Dr. Daniels has published a number of peer-reviewed articles and delivered several invited lectures related to cardiac arrhythmias. He serves as an ad hoc reviewer for publications that include the Journal of Cardiovascular Electrophysiology, Journal of Investigative Medicine, and American Journal of Cardiology. Dr. Daniels is an active member of several professional organizations, including the American Heart Association, American College of Cardiology, Heart Rhythm Society, and the American Medical Association. Dr. Daniels was included in D Magazine's Best Doctors list for 2022, 2021, 2020, and 2018. Personal Note Dr. Daniels and his wife, a dermatologist, have three children.
Undergraduate education: University of Kansas (Chemistry)
Biography James Daniels, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center, and a member of its Division of Cardiology. A specialist in cardiac arrhythmias, he serves as Director of the Pacemaker and Defibrillator Clinic. Originally from New Jersey, he holds bachelor's degrees in cell biology and chemistry, both earned with distinction and honors from the University of Kansas in Lawrence. He received his medical degree from UT Southwestern and completed internal medicine residency training at the University of New Mexico Health Sciences Center in Albuquerque, where he served as Chief Resident. He then obtained advanced training through fellowship programs in cardiovascular diseases and cardiac electrophysiology at UT Southwestern. Certified by the American Board of Internal Medicine in cardiovascular disease and clinical cardiac electrophysiology, Dr. Daniels joined the UT Southwestern faculty in 2009. In addition to his patient care responsibilities, Dr. Daniels frequently lectures to UT Southwestern’s cardiology, electrophysiology, and internal medicine trainees. His current research interests include MRI-compatible implantable cardiac devices and atrial fibrillation. Dr. Daniels has published a number of peer-reviewed articles and delivered several invited lectures related to cardiac arrhythmias. He serves as an ad hoc reviewer for publications that include the Journal of Cardiovascular Electrophysiology, Journal of Investigative Medicine, and American Journal of Cardiology. Dr. Daniels is an active member of several professional organizations, including the American Heart Association, American College of Cardiology, Heart Rhythm Society, and the American Medical Association. Dr. Daniels was included in D Magazine's Best Doctors list for 2022, 2021, 2020, and 2018. Personal Note Dr. Daniels and his wife, a dermatologist, have three children.
- [2]UT Southwestern Division of Cardiology faculty directory
1 source claim · Reviewed Sep 7, 2026
Professional role: Professor
James Daniels, M.D. Professor Director, Pacemaker and Defibrillator Clinic
