About
Francisco J. Diaz Viera, MD
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Dr. Diaz Viera grew up in Cayey, Puerto Rico, and completed his medical training in Austin. In his free time, he enjoys playing basketball, playing the keyboard, trying new food recipes, and keeping up with his family. His favorite area locale is the Mueller Lake – "a great spot to relax, exercise, or grab a bite."
I wanted to pursue medicine because it felt like a great way to apply science within a complex academic field that would still be grounded in empathy, and would allow me to give back to the community. I chose cardiology because it has an interesting mix of advanced methodology while also focusing on the physical examination and solid preventive medicine and still allowing me to get to know my patients. I focus on disease prevention and promoting a healthy lifestyle. I believe it is important to listen to each patient's concerns individually and tailor their treatment to provide the best possible outcomes.
Services
- Cardiac Rhythm Monitoring
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Cardiac Rhythm Monitoring
Cardiac rhythm monitoring helps measure the rhythm of your heart in order to identify an irregular heart rhythm disorders.
- Echocardiograms
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Echocardiograms
ARC Cardiology offers standard echocardiograms and stress echocardiograms for patients 18 and older. A referral from your physician or advanced practice clinician (APC) is required to schedule an echocardiogram at ARC.
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- Nuclear Stress Testing
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Nuclear Stress Testing
Nuclear stress tests use a small amount of radioactive tracer and an imaging machine to create pictures showing blood flow.
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- Stress Echocardiogram
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Stress Echocardiogram
Stress echocardiography uses ultrasound imaging to show how well your heart works to pump blood to your body. It can help detect a decrease in blood flow to the heart from narrowing in the coronary arteries.
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- Stress Testing
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Stress Testing
A stress test shows how your heart works during physical activity, revealing problems with blood flow within your heart. We offer three basic types of stress testing: exercise/treadmill stress tests, nuclear stress tests, and stress echocardiograms.
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- Telemedicine Visits
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Telemedicine Visits
ARC offers telemedicine visits for primary and specialty care. ARC doctors and advanced practice clinicians (APCs) can quickly evaluate you for a new health issue or follow up with you via a phone call or video visit from the comfort of your home.
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- Treadmill Stress Testing
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Treadmill Stress Testing
A treadmill test helps determine how well your heart handles work. As your body works harder during the test, it requires more oxygen, so the heart must pump more blood. The test can show if the blood supply is reduced in the arteries that supply the heart. It also helps doctors know the kind and level of exercise appropriate for a patient.
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Locations & Hours
Credentials
Board Certifications
Board Certified in Internal Medicine
Fellowship
Cardiology Fellowship, The University of Texas at Austin Dell Medical School, Austin, TX, 2025
Residency
The University of Texas at Austin Dell Medical School, Austin, TX, 2022
Medical School
San Juan Bautista School of Medicine, Magna Cum Laude, Caguas, Puerto Rico, 2019
Education
BS in Natural Sciences, Cum Laude, University of Puerto Rico Cayey Campus, Cayey, Puerto Rico, 2014
Professional Positions
- Member, Travis County Medical Society
- Member, American College of Physicians, Texas Chapter