Faculty and Fellows
Graduated fellows
( 2024)
We had two fellows and five advanced fellows graduate in 2024. We are extremely proud to have trained them and are excited to see them launch their own incredible pediatric cardiology careers across the U. S. and around the world.
Categorical
Lauren M. Zager, MD
• Current Role: C. S. Mott Children’ s Hospital, Pediatric Cardiology; University of Michigan Health, Clinical Instructor
Jeffrey M. Schuler, MD
• Current Role: Children’ s Mercy Kansas City; Clinical Assistant Professor of Pediatrics, University of Missouri-Kansas City School of Medicine
Current fellows
( 2024 – 2025)
In 2024, we brought on five new categorical fellows to join a total of six second- and third-year fellows. We also currently have eight advanced fellows that span seven different cardiac subspecialties.
Categorical
Kelsey A. Wilson, MD( 1st year)
• Medical school: University of Maryland School of Medicine
• Residency: UPMC Children ' s Hospital of Pittsburgh
Elaina L. Cummer, MD( 1st year)
• Medical school: Wake Forest University School of Medicine
• Residency: University of Colorado School of Medicine
Advanced
Conor Merritt, MD, Cardiac Intensive Care
• Current Role: Pediatrics-Critical Care provider, Children ' s Colorado; Assistant Professor, Pediatrics-Critical Care, University of Colorado School of Medicine
Natalie Soszyn, MD, Interventional Cardiology
• Current Role: Pediatric Interventional Cardiologist, Starship Children’ s Hospital, University of Sydney
Krista Young, MD, Cardiac Imaging
• Current Role: Pediatric Cardiologist, Texas Children’ s Hospital; Assistant Professor, Cardiology, Baylor College of Medicine
Ernesto Mejía, MD, Interventional Cardiology
• Current Role: Pediatric Interventional Cardiologist, Manning Family Children’ s LCMC Health; Assistant Professor, LSU School of Medicine
Nicholas Holzemer, MD, Adult Congenital Heart Disease
• Current Role: ACHD provider, Children ' s Colorado; Assistant Professor-Pediatrics, University of Colorado School of Medicine
Michael P. Gould, MD( 1st year)
• Medical school: University of Maryland School of Medicine
• Residency: UPMC Children ' s Hospital of Pittsburgh
Khalifah A. M. Aldawsari, MD( 1st year)
• Medical school: King Faisal Specialist Hospital and Research Center, Saudi Arabia
• Residency: Nicklaus Children ' s Hospital
Ricardo P. J. Cabrera, MD( 1st year)
• Medical school: Universidad Francisco Marroquin Facultad de Medicina, Guatemala
• Residency: USA Health Pediatrics
Aidan Reed, MD,( 2nd year)
• Medical school: Rocky Vista University
• Residency: Medical College of Wisconsin
Umakanthan Kavin, MD( 2nd year)
• Medical school: Charles E. Schmidt College of Medicine, Florida Atlantic University
• Residency: Internal Medicine / Pediatrics, Medical University of South Carolina
18 | Children ' s Hospital Colorado Heart Institute