Laboratory Services

The Clinical Laboratory at Covenant HealthCare is the largest lab in East Central Michigan, performing more than 650 different types of tests and providing area physicians with more than two million diagnostic results annually. Our laboratory utilizes leading-edge technology that is fully integrated with medical information, allowing Covenant HealthCare to provide rapid, high-quality test results.

Our missions is to deliver the highest level possible in laboratory quality, service and patient care. No matter what type of laboratory testing you may need, Covenant HealthCare has convenient locations throughout the Great Lakes Bay Region. Lab services like routine blood and urine testing and other necessary diagnostic tests may be done at any of our Patient Service Centers (see below).

We also offer a blood bank, as well as coagulation, hematology, microbiology, cytology, chemistry, anatomic pathology and immunology services.

COVID-19 “SEARS” Testing Site is Closed

After many months of service, the Covenant COVID-19 Testing Site, located in the former Sears building at Bay and Tittabawassee Roads, will have its final day on Friday, March 4. After the Omicron peak, we have seen a steady decline in the number of people seeking testing. COVID-19 testing will now be available at select laboratory locations (excluding Alma and Hemlock. Mackinaw will only perform COVID tests on asymptomatic patients for pre-admission testing), and a physician’s order is still required. Thank you to the dedicated testing center team who for many months assisted hundreds of patients in our community!

All COVID-19 testing performed at Covenant requires a physician order.

If you believe you need a test, please call your physician for an order for testing or call our Covenant Care Connect hotline at 989.583.3135 to be screened for an order.

Laboratory Services Patient Service Centers

Bay City
2919 East Wilder, Suite 220
Monday – Friday: 6:00 am – 4:00 pm
Tel: 989.583.6742

600 North Main
Monday – Friday: 6:00 am – 4:00 pm
Tel: 989.583.6742


*800 Cooper location has moved to 600 Irving.

600 Irving
Monday – Friday: 6:00 am – 4:00 pm
Tel: 989.583.6742

8767 Gratiot (M-46)
Monday – Friday: 6:00 am – 3:30 pm
Tel: 989.583.6742

5400 Mackinaw
Monday – Friday: 6:00 am – 5:00 pm
Tel: 989.583.6742
*Note: Limited COVID-19 testing for asymptomatic, pre-admission testing only.

5570 State Street
Monday – Friday: 6:00 am – 5:00 pm
Saturday: 6:00 am – 2:30 pm
Tel: 989.583.6742