Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments that treat this condition Cardiovascular Medicine Cardiovascular Surgery Electrophysiology Laboratory Heart Rhythm Clinic Pediatric Cardiac Surgery Pediatric Cardiology Doctors who treat this condition Edit search filters close Narrow your search By location Jacksonville, FL By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E Find a doctor whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I There are no doctors whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N Find a doctor whose last name begins with the letter O O active Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: P Julio C. Perez Downes, D.O. Echocardiographer Cardiologist Nuclear Medicine Specialist Jacksonville, FL Areas of focus: Echocardiogram, Exercise stress test, Nuclear stress test, Stress echocardiogram, Heart disease, Angina, Heart attack, ...Hyperlipidemia, Heart arrhythmia Show more areas of focus for Julio C. Perez Downes, D.O. ResearchResearchers at Mayo Clinic study the genetics, causes, diagnostic tests and treatments for arrhythmias and other heart conditions. Read more about heart rhythm disease research in Mayo Clinic's Cardiovascular Research Center. PublicationsSee a list of publications about heart arrhythmia by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine. Research Profiles Edit search filters close Narrow your search By location Arizona Florida Minnesota View all View all physicians • Minnesota Ackerman, Michael J. M.D., Ph.D. Minnesota Ammash, Naser M. M.D. Minnesota Asirvatham, Samuel J. M.D. Minnesota Noseworthy, Peter A. M.D., M.B.A. Minnesota Yamada, Satsuki M.D., Ph.D. Minnesota By Mayo Clinic Staff Heart arrhythmia care at Mayo Clinic Request an appointment Diagnosis & treatmentCare at Mayo Clinic Oct. 13, 2023 Print Related Automated external defibrillators: Do you need an AED? Cardiac catheter ablation Home automated external defibrillator (AED) Pacemakers, defibrillator Ventricular tachycardia Show more related content Associated Procedures Ablation therapy Cardiac ablation Cardioversion Coronary artery bypass surgery Echocardiogram Electrocardiogram (ECG or EKG) EP study Holter monitor Implantable cardioverter-defibrillators (ICDs) Implantable loop recorder: A heart monitoring device Pacemaker Stress test Tilt table test Show more associated procedures Mayo Clinic in Rochester, Minnesota, has been recognized as one of the top Cardiology & Heart Surgery hospitals in the nation for 2024-2025 by U.S. News & World Report. Learn more about this top honor Heart arrhythmiaSymptoms&causesDiagnosis&treatmentDoctors&departmentsCare atMayoClinic Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. CON-20155138 Patient Care & Health Information Diseases & Conditions Heart arrhythmia