Contact us

How to get in touch

If you have any questions or concerns, you can contact our Member Services Call Center, Monday through Friday, 8:30 a.m. to 5:45 p.m.


(313) 964-2400

Toll Free
(800) 572-7687

Alternate Outage Number
(800) 482-2219

Fax Number: (313) 964-2442


All correspondence must include the participant’s contract number and addressed or faxed to:

2700 Trumbull Avenue
Detroit, Michigan 48216

Fax Number: (313) 964-2442

Fraud Contact

If in reviewing any Explanation of Benefits provided to you from MCTWF, or any of its vendors, you identify possible fraud, please contact the appropriate toll free Anti-Fraud Hotline as follows:

For Medical Professional or Vision Claims: (800) 637-6907

For Dental Claims: (800) 524-0147

For Hospital Claims: (800) 482-3787

Send us a secure email

You may also send us a secure (encrypted) e-mail with your questions, comments, or requests, by clicking on SEND SECURE EMAIL.

Please provide identifying information in your email, including your name, phone number, and MCTWF contract number, and, if you are not the participant, his or her full name. You will receive a response by phone or email within 48 hours.

Call Center Schedule

The MCTWF Call Center Hours are Monday through Friday 8:30 a.m. to 5:45 p.m. with the exception of the following holiday closings:

Monday, January 16, 2023 – Martin Luther King Jr. Day
Friday, April 7, 2023 – Good Friday
Monday, May 29, 2023 – Memorial Day
Tuesday, July 4, 2023 – Independence Day
Monday, September 4, 2023 – Labor Day
Thursday, November 23, 2023 – Thanksgiving Day
Friday, November 24, 2023 – Thanksgiving Break
Monday, December 25, 2023 – Christmas Eve Observed
Tuesday, December 26, 2023 – Christmas Day Observed
Monday, January 1, 2024 – New Year’s Eve Observed
Tuesday, January 2, 2024 – New Year’s Day Observed