High-quality health care that's easier on your schedule. Trinity IHA Urgent Care is just what the patient ordered. No more waiting for hours in an emergency room, now you have a quicker, more cost-effective alternative that fits your schedule... and your budget. As always, no appointment is required. Trinity IHA Urgent Care Howell offers extended hours, seven days a week, and is conveniently located in Howell on Highland Road, between Byron Road and Michigan Avenue. You can expect personalized care given by IHA doctors, nurse practitioners and physician assistants. If the matter is life-threatening, go to the nearest hospital or call 911 immediately. We offer a wide range of services from pediatric to adult Care.