Welcome to the Corewell Health Pennock Hospital Multispecialty Center - Ionia. This campus offers convenient access to coordinated health care, right in your community. Multiple Corewell Health services are available in one location. It is home to a range of coordinated health services from diagnostics to primary and specialty care. Working around your schedule and in your neighborhood, here you'll find the compassionate and skilled care you've come to trust, delivered to your whole family, right in your community.