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 Doctors who treat this condition Edit search filters close Narrow your search By location Rochester, MN By last name There are no doctors 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 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 Find a doctor 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 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 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 active Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor 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: R Guy S. Reeder, M.D. Interventional Cardiologist Rochester, MN Areas of focus: Coronary artery stenting, Transcatheter aortic valve replacement, Atrial septostomy, Transesophageal echocardiogram, Tr...ansthoracic echocardiogram, Patent foramen ovale closure, Pulmonary vein stenting, Atrial septal defect closure, Aortic valve stenosis, Atrial septal defect, Heart valve disease, Coronary artery disease, Patent foramen ovale, Mitral valve regurgitation, Acute coronary syndrome, Platypnea-orthodeoxia syndrome, Pulmonary vein stenosis Show more areas of focus for Guy S. Reeder, M.D. By Mayo Clinic Staff Request an appointment Diagnosis & treatment April 26, 2025 Print Living with acute coronary syndrome? Connect with others like you for support and answers to your questions in the Heart & Blood Health support group on Mayo Clinic Connect, a patient community. Heart & Blood Health Discussions High Ferritin Levels: How can I lower my levels? 35 Replies Tue, Apr 14, 2026 chevron-right Living with high calcium score 96 Replies Thu, Apr 02, 2026 chevron-right Important information about statins that I’m going to ask my doc about 233 Replies Mon, Mar 30, 2026 chevron-right See more discussions Related Associated Procedures Coronary angiogram Coronary angioplasty and stents Coronary artery bypass surgery CT scan Echocardiogram Electrocardiogram (ECG or EKG) X-ray Show more associated procedures Acute coronary syndromeSymptoms&causesDiagnosis&treatmentDoctors&departments 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-20166504 Diseases & Conditions Acute coronary syndrome