Mackinac Straits Health Systems

Mackinac Straits Health System provides Oncology Services in St. Ignace and Cheboygan. The Oncology Clinic in St. Ignace is located on the first floor of the Hospital. This includes an infusion center that offers six patient chairs, a private treatment room, onsite Lab, onsite Pharmacy, private entrance with Reserved Parking, and Food Service.

The Rivertown Medical Clinic in Cheboygan has four patient chairs for Oncology infusion services, and are available Tuesday thru Friday by appointment. Call (231) 597-9740.

Dr. Jensen sees patients in St. Ignace. Dr. Bolmer sees patients in St. Ignace and Cheboygan. Deborah Griffin sees patients in clinic on Wednesday in St. Ignace.

Oncology Providers

Amy Bolmer, D.O.

Debbie Griffin, AOCNP


Phone: Receptionist  (906) 643-0405

Infusion Nurses (906) 643-0446

After Hours – (231) 487-4000 *Patients can have the Oncologist on call paged