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Our Fellows

Current Fellows

Ryan Alanzalon, MD Second Year Fellow

Ryan Alanzalon, M.D.

Ryan was born and raised in San Francisco, CA and has traversed the country in pursuit of his educational and career goals. He was drawn to pursue his undergraduate degrees in Economics and Molecular Biology at the University of California at Santa Cruz, a sunny beach town in Northern California. He then proceeded to complete his medical degree at the New York University School of Medicine. In search of warmer climates, he undertook his residency training at one of the country's largest health care providers, Kaiser Permanente, in Los Angeles, CA. It was there where he truly developed and honed his interest in both pediatrics and congenital cardiology, under the tutelage of his mentor and Department Chief, Dr. Tim Degner. He looks forward to caring and learning from the children of the Rochester region, the occasional garbage plate, and navigating snow once again.

When he's not in the hospital, his personal interests include: improving his tennis serve, learning about local culture via frequent trips to farmers' markets, restaurants, bars, and coffee shops, and keeping up with his hometown baseball team, the San Francisco Giants.

Rachel Bounds, MD Second Year Fellow

Rachel Bounds, M.D.

Rachel is originally from Maryland. She attended medical school at the University of South Carolina and trained for pediatric residency at Maria Fareri Children’s Hospital in Westchester, NY. Her interest in pediatric cardiology began during a summer internship in medical school and has continued to grow since then. During residency, she participated in a medical mission to Honduras dedicated to the care of congenital cardiac disease and she remains interested in global medicine. Since starting fellowship, she has particularly enjoyed caring for children with complex congenital heart disease and pediatric cardiac intensive care. Outside of fellowship training, Rachel has enjoyed exploring Rochester’s many parks and restaurants.

Her personal interests include: hiking with her dog Stella, traveling and watching sports (especially the Baltimore Ravens, Baltimore Orioles and NY Rangers)


William G. Harmon, M.D.
Associate Professor of Clinical Pediatrics
Director of Pediatric Cardiology
Director, Pediatric Cardiac Critical Care
University of Miami, Holtz Children's Hospital
Miami, FL

Valeriano C. Simbre, II, M.D.
Pediatric Cardiologist
Children’s Hospital Central California
Madera, CA

Gul H. Dadlani, M.D.
Medical Director of Pediatric Cardiology
Cardiology Laboratory Director
All Children's Hospital
St. Petersburg, FL

Svjetlana Tisma-Dupanovic, M.D.
Assistant Professor of Pediatrics
University of Missouri-Kansas City School of Medicine
Children’s Mercy Hospitals & Clinics
Kansas City, MO

Peter H. Chang, D.O.
Pediatric Cardiologist
Pediatric Cardiology Center of Oregon
Portland, OR

Colleen O'Connor Jo, M.D.
Pediatric Cardiologist
West Hartford, CT

David M. Brennen, M.D.
Pediatric Cardiologist
Pediatric Cardiology Associates of San Antonio
San Antonio, TX

Subhashini Subramanian, M.D.
Pediatric Cardiologist
Pediatric Center for Heart Disease
Hackensack University Medical Center
Hackensack, NJ

Amanda L. Hall, M.D.
Pediatric Cardiac Intensivist
Carolinas Medical Center
Charlotte, NC

Rebecca E. Pratt, M.D.
Pediatric Cardiologist
Buffalo Cardiologists of WNY
Buffalo, NY

Mohy Kotb, M.D.
Pediatric Cardiologist
Private Practice
Livingston, NY