News Releases

GRAND RAPIDS, Mich., May 16, 2025 – Corewell Health™ announced today that it has named Josh Kooistra, D.O., as president of Corewell Health in West Michigan. Kooistra, who formerly served as senior vice president and chief medical officer of Corewell Health in West Michigan, has been interim president since December 2024.

“With decades of hands-on experience garnered through 20 years as an emergency physician, and 15 years of health care executive leadership, Josh has an innate understanding of what it means to be on the frontlines of health care as we aim for a future where health is simple, affordable, equitable and exceptional,” said Chad Tuttle, chief operating officer. “Josh leads with heart and humility. He has a deep connection to our teams and the communities we serve in West Michigan — it was clear he was the right person for this role.”

Dr. Kooistra, who joined Corewell Health in 2002, received his undergraduate degree from Hope College and his medical degree from Michigan State University’s College of Osteopathic Medicine. He completed a residency in emergency medicine at Spectrum Health/Michigan State University.

Dr. Kooistra serves as an associate dean for the College of Human Medicine at MSU. He also is president of the Jason Kinzler Family First Foundation, a non-profit organization providing financial assistance to families with children who have experienced the unexpected loss of a primary caregiver.

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About Corewell Health™

People are at the heart of everything we do, and the inspiration for our legacy of outstanding outcomes, innovation, strong community partnerships, philanthropy and transparency. Corewell Health is a not-for-profit health system that provides health care and coverage with an exceptional team of 65,000+ dedicated people—including more than 12,000 physicians and advanced practice providers and more than 16,000 nurses providing care and services in 21 hospitals, 300+ outpatient locations and several post-acute facilities—and Priority Health, a provider-sponsored health plan serving more than 1.3 million members. Through experience and collaboration, we are reimagining a better, more equitable model of health and wellness. For more information, visit corewellhealth.org. 

Contact: 

Beth Cranson                                   
616.540.0813                                               
elizabeth.cranson@corewellhealth.org