Our Leadership

Julie Nix

Chief Executive Officer

Julie Nix is a dynamic healthcare executive with over 20 years of experience leading strategic growth, operational excellence, and collaboration across complex health systems. As a President and CEO of Riverview Health in Hamilton County, Indiana, she oversees system operations, strategy, clinical performance, and community engagement across hospitals, physician networks, and outpatient facilities. She is known for aligning organizational culture with community needs and driving sustainable success.

Previously, Julie spent much of her career in central Arkansas, including leadership roles at Baptist Health System, where she built expertise in strategic planning, service line development, and innovative care models that improve quality, financial performance, and patient access. She holds a master's degree in health services administration from the University of Alabama at Birmingham and a bachelor's in business administration from the University of Arkansas at Little Rock and is actively involved in organizations such as Women in Healthcare, Rotary, and Junior Achievement.

Shabana Mallick

Chief Financial Officer

Shabana Mallick is an experienced healthcare finance leader with over 20 years of expertise in driving strategic financial insight and operational excellence across complex health systems. Before joining Riverview Health as the Chief Financial Officer, she spent more than six years at Indiana University Health, where she led financial decision support for all 15 hospitals, enabling system-wide performance, informed decision-making, and long-term sustainability.

She is known for building high-performing, collaborative teams and fostering strong partnerships across clinical and administrative stakeholders. With a talent for translating complex data into actionable insights, Shabana aligns financial strategy with organizational priorities and helps guide leaders through challenging financial environments. A resident of Hamilton County for the past 15 years, she remains deeply connected to the local community.

Eric Marcotte, MD

Chief Medical Officer

As chief medical officer of Riverview Health, Dr. Eric Marcotte is responsible for building physician partnerships and maintaining quality assurance throughout the organization. In his role, he has operational oversight of the Medical Staff Office and credentialing of physicians. Dr. Marcotte joined Riverview Health more than 10 years ago as a board-certified family medicine physician and continues to see patients at Riverview Health Physicians––Sheridan Family Medicine. Dr. Marcotte earned his medical degree from Indiana University School of Medicine.

Tammi Newcomer

Chief Nursing Officer

Tammi Newcomer joined Riverview Health in 1988 as a critical care nurse and served as the executive director of nursing operations at Riverview Health before becoming the vice president of outpatient services and then Chief Nursing Officer. In her role, Tammi is responsible for overseeing both strategic and operational initiatives that impact nursing practice to ensure patients receive safe, compassionate, high-quality care. She also serves as the administrator of Riverview Health Westfield Hospital as well as leading the strategic and operational initiatives for cardiovascular, cancer, imaging and surgical services for Riverview Health. Tammi earned her BSN from Purdue University and her MBA from Indiana Wesleyan University. Tammi holds a certification in executive nursing practice.

Michael Mover

Chief Information Officer

Prior to joining the team at Riverview Health in 2022, Mike Mover was the CIO at Corizon Health in Brentwood, TN. He also served as the CIO and Senior Vice President of Information Systems at Saint Thomas Health in Nashville, TN, and as the CIO of Riverview Health from 2004-2012. Mike grew up in the Indianapolis area, and after nearly 10 years in Tennessee, he is excited to be back in Indiana and at Riverview Health once again. Mike earned a Bachelor of Science in Business Administration from Indiana Institute of Technology and an MBA with a health care concentration from Indiana Wesleyan.

Megan G. Wiles

Vice President, Foundation and Community Affairs

As vice president of Riverview Health Foundation, Megan Wiles leads the efforts to raise charitable dollars for the benefit of Riverview Health. Through generous donations, Riverview Health Foundation is able to contribute financial resources for critical equipment, projects and services at Riverview Health. Megan’s responsibilities include working with Riverview Health Foundation Board of Directors, departments at Riverview Health and local community members.