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Board of Directors

We thank the extraordinary individuals who commit their time, wisdom and resources to ACHA.

Stephen Back DO Chair

Diagnostic Radiologist
Assistant Professor of Clinical Medicine
Oklahoma State University Center for Health Sciences
Partner-Diagnostic Imaging Associates
Tulsa, OK

James Ruppel MD, MS Immediate Past Chair

Retired, Gailey Eye Clinic
Galesburg, IL

William F. Causey Vice Chair

Retired Attorney
Washington, DC

William Browne Treasurer

Employee Relations Consultant & Family Foundation Advisor
Oklahoma City, OK

Nicole Jung Secretary

Vice President of Finance, Health and Science Technologies, IDEX Corporation
Minneapolis, MN

Yuli Kim MD Medical Advisory Board Chair

Director, Adult Congenital Heart Disease Center,
University of Pennsylvania, Philadelphia, PA

Peter Ermis MD, FACC Medical Advisory Board Vice Chair

Medical Director, Adult Congenital Heart Disease Program
Texas Children’s Hospital
Baylor College of Medicine, Houston, TX

Meredith Rahn-Oakes Patient & Family Advisory Board Co-Chair

Governance Specialist, University of Iowa Health Care
Iowa City, IA

Lindsay Altimare MPA

Vice President Operations, Pediatrics, Lehigh Valley Reilly Children’s Hospital
Lehigh Valley Health Network (part of Jefferson Health)
Allentown, PA

Danijel Brener

Chief of Staff, Philips Respironics
Pittsburgh, PA

Chad Chase

Managing Principal - Senior Advisor, CGN Advisors
Manhattan, KS

Jonathan Cramer MD

Adult Congenital Cardiologist and Medical Director
University of Nebraska Medical Center & Children's Nebraska
Omaha, NE

Todd Crippin

Vice President, Provider Recruiting & Strategy, Optum
Overland Park, KS

Tiffany Hackett-Stuart RN

Primary Children's Hospital
Salt Lake City, UT

Matthew J. Martinho

Senior Wealth Planner, Merrill Lynch
New York, NY

Claudia E. Norman

Lead Director, Aetna, a CVS Health Company
New Britain, CT

Anne Stapleton Reilly

Retired, Development and Public Relations Professional
Naples, FL

Timothy Singletary

General Partner, Apex One Capital
Houston, TX

Erin Walsh-Beguin

Senior Director, Global Recruiting Operations & Employer Brand, GoDaddy
Chandler, AZ