Our Approach

The Heart Center at The Children's Hospital of San Antonio provides comprehensive care to children with heart problems. Our integrated group of specialists bring together a multidisciplinary approach from many specialties to care for children with heart defects.  Together, we strive to provide the best of care to all patients. We believe that the most successful approach is where all care providers within the program work together to achieve outstanding results. In doing so, the cardiology team, cardiothoracic surgeons, anesthesiologists, pediatric perfusionists, neonatal and pediatric intensive care specialists and nurses throughout all of these groups work in concert to treat a child throughout hospitalization. Each of these groups have cardiac specialists who provide specialty care 24 hours a day.

Some of our specialized features include:

  • Dedicated Cardiac Surgery Operating Room with its own team of specialized nurses and assistants.
  • Dedicated Neonatal and Pediatric teams available 24 hours a day to transport critically ill newborns and children.
  • A Cardiac Cath Lab specially designed for children.
  • Specially trained cardiac teams in Neonatal Intensive Care Unit and Pediatric Intensive Care Unit.


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NOTE: A representative from CHRISTUS Health will contact you between 8:30 am and 5:00 pm CDT to help you schedule an appointment.

Our Services

  • Pediatric Cardiology
  • Pediatric Cardiothoracic Surgery
  • Neonatal Intensive Care Unit and ECMO Program
  • Pediatric Intensive Care Unit
  • Pediatric Cardiac Anesthesiology
  • Pediatric Perfusion
  • Nursing
  • Child Life
  • For Physicians

Our Team

Harinder Singh

Harinder Singh, MD

Pediatric Cardiology

Section Chief, Cardiololgy, Associate Professor, Baylor College of Medicine, Electrophysiologist

Default Male Provider

Arpit Agarwal, MD

Pediatric Cardiology

Assistant Professor, Baylor College of Medicine

Jesse Lee

Jesse Lee, MD

Pediatric Cardiology

Assistant Professor, Baylor College of Medicine

Richard Lorber

Richard Lorber, MD

Pediatric Cardiology

Associate Professor of Pediatrics, Baylor College of Medicine

Nagaraju Lakshmi

Lakshmi Nagaraju, MD

Pediatric Cardiology

Assistant Professor

Lauren Tramontano

Lauren Tramontano, PA-C

Physician Assistant, Pediatric Cardiology

Instructor, Baylor College of Medicine

David Nento

Daniel Nento, MD

Pediatric Cardiothoracic Surgery

Section Chief, Assistant Professor of Pediatrics, Baylor College of Medicine, Cardiothoracic Surgery

Timothy Lord

Timothy Lord, MD

Pediatric Anesthesiologist, Pediatric Cardiology

Section Chief, Cardiac Anesthesia

Karl Reyes

Karl Reyes, MD

Pediatric Cardiothoracic Surgery

Associate Professor, Baylor College of Medicine

Amanda Dizzine

Amanda Dizzine, RN, CPNP, PC/AC

Pediatric Nurse Practitioner, Pediatric Cardiothoracic Surgery

Instructor of Pediatrics, Baylor College of Medicine

Blair Stewart, PA

Pediatric Cardiology