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 Pediatric Cardiac Surgery Doctors who treat this condition edit search filters Close Narrow your search By location Phoenix/Scottsdale, AZ By last name There are no doctors 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 Find a doctor 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 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 active Find a doctor 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 Last Name Initial: R Thomas (Tom) Roy, M.D. Cardiologist Phoenix, AZ Areas of focus: Atrial flutter, Atrial fibrillation, Heart arrhythmia, Heart failure, Coronary artery spasm, Heart murmur, Coronary art...ery disease, Cardiomyopathy, Syncope, Hyperlipidemia, Coronary calcification Show more areas of focus for Thomas (Tom) Roy, M.D. By Mayo Clinic Staff Request an appointment Diagnosis & treatment May 27, 2022 Print Share on: FacebookTwitter Related Associated Procedures Cardiac catheterization Chest X-rays CT scan Electrocardiogram (ECG or EKG) MRI Show more associated procedures Heart murmursSymptoms & causesDiagnosis & treatmentDoctors & departments Research: It's All About Patients CON-20373156 Patient Care & Health Information Diseases & Conditions Heart murmurs