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 Neurology Physical Medicine and Rehabilitation Areas that research this condition Neurology Research Doctors who treat this condition edit search filters Close Narrow your search By location Rochester, MN By last name Find a doctor whose last name begins with the letter A A There are no doctors whose last name begins with the letter B B There are no doctors whose last name begins with the letter C C There are no doctors whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors 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 There are no doctors whose last name begins with the letter K K There are no doctors whose last name begins with the letter L L There are no doctors whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O There are no doctors whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q There are no doctors whose last name begins with the letter R R There are no doctors 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 There are no doctors whose last name begins with the letter V V There are no doctors 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 Samuel J. Asirvatham, M.D. Cardiac Electrophysiologist Rochester, MN Areas of focus: Ultrasound, Endovenous thermal ablation, Percutaneous valve procedure, Ablation, Vasovagal syncope, Ventricular tachyca...rdia, Heart arrhythmia, Atrial fibrillation, Seizure Show more areas of focus for Samuel J. Asirvatham, M.D. By Mayo Clinic Staff Request an Appointment at Mayo Clinic Diagnosis & treatment Feb. 19, 2021 Print Share on: FacebookTwitter Related Fainting during urination (micturition syncope): What causes it? Associated Procedures Echocardiogram Electrocardiogram (ECG or EKG) Stress test Tilt table test Show more associated procedures Products & Services Book: Mayo Clinic Family Health Book, 5th Edition Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Vasovagal syncopeSymptoms & causesDiagnosis & treatmentDoctors & departments Research: It's All About Patients CON-20155113 Patient Care & Health Information Diseases & Conditions Vasovagal syncope