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 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 Find a doctor 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 active Find a doctor 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 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 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: H Donald J. Hagler, Sr., M.D. Pediatric Cardiologist Rochester, MN Phoenix, AZ Areas of focus: Cardiac catheterization, Percutaneous valve procedure, Echocardiogram, Transesophageal echocardiogram, Fetal echocardio...gram, Patent ductus arteriosus, Atrial septal defect, Heart disease, Congenital heart disease, Ventricular septal defect, Patent foramen ovale Show more areas of focus for Donald J. Hagler, Sr., M.D. By Mayo Clinic Staff Request an appointment Diagnosis & treatment Oct. 25, 2022 Print Living with patent foramen ovale? 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 I have a very high calcium score. What next? 368 Replies Tue, Nov 19, 2024 chevron-right Questions about the Use of a Trelegy Machine 66 Replies Tue, Nov 12, 2024 chevron-right Is Low Diastolic Blood Pressure common with Stage 3 or 4 CKD? 160 Replies Sun, Nov 10, 2024 chevron-right See more discussions Related Patent foramen ovale Associated Procedures Cardiac catheterization Echocardiogram Products & Services A Book: Future Care A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Patent foramen ovaleSymptoms&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-20316972 Patient Care & Health Information Diseases & Conditions Patent foramen ovale