Meet Our Structural Heart Team

The Structural Heart Team is a multi-disciplinary group of interventional cardiologists, cardiothoracic surgeons, nurse practitioners, nurses and medical assistants who provide comprehensive care to our patients.

Program Directors 

Arka Chatterjee, MD ARKA CHATTERJEE, MD 
Associate Professor of Medicine, Division of Cardiology
Associate Director Structural Heart Program, Banner University Medical Center - Tucson
Interventional Cardiologist


Assistant Professor of Surgery, Division of Cardiothoracic Surgery
Cardiothoracic Surgeon



Adult Interventional Cardiologists

Deepak Acharya, MD, MSPH Deepak Acharya, MD, MSPH
Associate Professor, Medicine
Program Director, Interventional Cardiology Fellowship
Interventional Cardiologist




Kwan Lee, MD Kwan Lee, MD
Associate Professor, Medicine
Associate Chief, Division of Cardiology
Cardiovascular Service Line Director, Banner University Medical Group Tucson
Interventional Cardiologist


Madhan Sundaram, MD Madhan Sundaram, MD
Clinical Assistant Professor of Medicine
Interventional Cardiologist



Pediatric Interventional Cardiologist 


Michael Seckeler, MD, MSc Michael Seckeler, MD, MSc 
Associate Professor, Pediatrics - (Clinical Scholar Track) 
Pediatric and Adult Congenital Interventional Cardiologist



Imaging Specialists 

Tushar Acharya, MD, MPH Tushar Acharya, MD, MPH 
Clinical Assistant Professor 

Raj Janardhanan, MD Raj Janardhanan, MD
Professor, Medicine and Medical Imaging - (Clinical Scholar Track)
Medical Director, Non-Invasive Cardiac Imaging, Banner – University Medical Center Tucson and South
Director, Echocardiography, Banner – University Medical Center Tucson and South

Amitoj Singh, MD Amitoj Singh, MD
Assistant Professor, Medicine 

Kavitha Yaddanapudi, MD Kavitha Yaddanapudi, MD
Associate Professor, Medical Imaging (Clinical Scholar Track)
Medical Imaging Discipline Director

Advanced Practice Providers

Allison Klatt, MSN, FNP-BC Allison Klatt, MSN, FNP-BC 
Structural Heart Nurse Practitioner


Valve Program Coordinator

Isabel Corres-Sohrab, RN, BSN Isabel Corres-Sohrab, RN, BSN 
Structural Heart Nurse Coordinator



Contact Structural Heart Disease Team

Adult Cardiology Team 
Phone number: 520-694-6190 • Fax: 520-694-1007

Pediatric and Congenital Heart 
Phone: 520-694-KIDS (5497) • Fax: 520-874-7070

Locations: Banner - University Medicine North and procedures at Banner - University Medical Center Tucson