3011 W. Grand Blvd., Suite 1600, Detroit, MI 48202
(313) 871-2000 or (800) 826-2862
thc@thc-online.com

Office Hours
Monday - Friday
8:30 AM - 5 PM

Emergency Service
We have an after hours service to take your calls. This service will answer your calls whenever our office is closed. There is no additional number to remember. Simply call our main number, listed above.