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Banner - University Medicine Heart Institute

Your heart deserves the best. That's why we provide the most advanced, comprehensive heart care from world-class doctors backed by the latest research.
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Need help? Call us.
Best-in-Class Heart Care
Our doctors are world-renown for their expert heart care. Advanced, minimally invasive treatments, often not available elsewhere, give you your best possible outcome. You can feel confident knowing our highly skilled doctors are caring of your heart.
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Expert Doctors
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Complex Conditions
Advanced Care

Banner believes in making health care easy

We make advanced heart care more accessible by accepting most insurance.
Highly Specialized Centers
The Heart Institute centers specialize in advanced treatments and complex heart care.
Cardiovascular Intervention Center
If you need an advanced heart procedure, you've come to the right place. We provide the newest, most effective minimally-invasive procedures to make your recovery more comfortable. As one of the Southwest's leading hospitals in this field we offer advanced treatments, even some not available elsewhere.
  • Heart valve repair and replacement
  • Acquired or congenital heart defects
  • Coronary artery disease and stenosis
Heart Rhythm Disorders Center

We keep your heart in rhythm with the most advanced techniques to repair the heart's electrical function. Our expert doctors not only perform these procedures, they develop and teach them to doctors world-wide.

  • Arrhythmia management including atrial fibrillation, ventricular tachycardia, atrial flutter and syncope
  • Minimally invasive treatments including pacemakers, ablation and cryoballoon therapy
Women’s Heart Center

Women's heart disease is unique. So is the Women's Heart Center. We address this through prevention, education and treatment just for women. Our focus on women's hearts will increase quality of life for our daughters, sisters, mothers, grandmothers, wives and friends.

  • Heart disease prevention
  • Cardiac and postpartum risk assessments
  • Small vessel heart disease
  • Coronary artery disease management
Questions? Call the Heart Institute

We can answer any appointment, insurance, referral and medical questions.

Call (602) 521-3090

Our Expert Doctors
At the Heart Institute, we provide a fully integrated approach in your cardiac health

Jaime Stempihar, PA-C

Physician Assistant

Physician Assistant (PA), Banner - University Medicine Heart Institute
I listen first to my patients to develop trust in the relationship and to gain clues to what is wrong. I want to help my patients and their families understand the "why" behind my recommendations. Understanding helps people better manage their conditions, improve their quality of life and make safer decisions regarding their health care. Ultimately, I want my patients to be comfortable with the choices they make.

Balaji Tamarappoo, MD

Physician Assistant

Physician, Banner Health Center plus at Arcadia
A trusting relationship is the foundation of my practice.

Jonathan Weiss, MD


Physician, Banner - University Medicine Heart Institute
My approach to care is all about the patient. Although Electrophysiology (Heart Rhythm Specialist) is a highly technical area of medicine, listening carefully to the patient is where excellent care begins. Careful understanding of the patient's concerns, level of understanding, and expectations is key to providing the education necessary for successful planning and then providing them the appropriate treatment.

Ashley Dacey, DNP

Nurse Practitioner

Nurse Practitioner (NP), Banner - University Medicine Heart Institute
I believe in a team based approach to care that delivers excellence in service, quality and innovation.

Marvin Eng, MD

Nurse Practitioner

Physician, Banner - University Medicine Heart Institute
I believe in a team based philosophy that delivers excellence in service, quality and innovation.

Carla Lockhart, DNP

Family Nurse Practitioner, Family Medicine, Telemedicine

Nurse Practitioner (NP), Banner - University Medicine Heart Institute
I'm committed to treating each patient with respect and compassion.

Wilber Su, MD


Physician, Banner - University Medicine Heart Institute
I use the latest technology to provide the safest and most effective healthcare for my patients.

Michael Zawaneh, MD

Cardiology, Telemedicine

Physician, Banner - University Medicine Heart Institute
I strive to provide compassionate, individualized care for every patient.

Samuel Unzek Freiman, MD

Telemedicine, Cardiovascular Disease

Physician, Banner - University Medicine Heart Institute
I am committed to providing each of my patients with the highest quality care with emphasis on communication, understanding, empathy and trust.

Camelle Jones, FNP

Family Nurse Practitioner, Telemedicine

Nurse Practitioner (NP), Banner Health Center plus at Arcadia
I strive to provide wellness, preventative, and other comprehensive education about cardiac disease.

Roderick Tung, MD

Family Nurse Practitioner, Telemedicine

Physician, Banner - University Medicine Heart Institute
We aim to achieve concierge-level care in an academic medical center. Additionally, we strive not only to come to work to practice medicine, but also to change the practice of medicine through innovation, clinical research, and thinking outside of the box. Our goal is to be the premier academic cardiovascular center in the Southwest US, for your first opinion to your last resort.

I-Hui Chiang, MD

Cardiology - Interventional

Physician, Banner - University Medicine Heart Institute
I am committed to a patient centered experience where I focus on the individual needs of each of my patients.
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Innovative leaders in heart care

Our doctors don't just perform complex heart procedures, they research, invent and teach them.

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Highly specialized experts

Our dedicated specialists are deeply knowledgeable and highly focused on their areas of expertise.

Advancing medical research with U of A
We partner with the University of Arizona to explore new drugs and procedures.
Access to the latest clinical trials
You may benefit from new treatments not yet available to the public.
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Fellowship and Residency Programs

The Institutes attract the best and brightest residents and fellows from across the country who work alongside our expert doctors to provide you the best in health care.

Structural Heart Fellowship
Cardiology Fellowship
Interventional Cardiology Fellowship