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Thumb MRI Center LLC.
  • Clinic Director: Diane Ruhlman - druhlman@thumbmri.com

  • Hours of Operation: Currently our regular hours are 5:00am to 11:00pm Monday through Friday, weekend hours vary.

  • Address: 6320 Van Dyke Road Cass City, MI 48726

Patient Assistance and Support
Toll Free Phone Assistance:
Our Patient Care Specialists are here to help you from 5:00am to 11:00pm Monday throughFriday.

  • 888-399-9469 is answered from 5:00am to 11:00pm Monday through Friday.

  • Fax Number: 989-872-5734 24 hours, seven days a week


General Issues
Frequently Asked Questions
This page answers many of the most frequently asked questions about Magnetic Resonance Imaging. If you have other questions or would like more information, please call us at 888-399-9469.