Coordination of Benefits

All EHP members are required to complete the Coordination of Benefits (COB) process, when they enroll for the first time and in January each year. Failure to complete the COB process will result in denial of claims for your participating dependents.
You can complete the annual process in one of three ways:

1.       Update your information electronically at the Mutual Health Services’ website.* (MHS is the health plan’s third-party administrator.)   
2.       Complete a hard copy of COB form and send it to MHS using the fax number or mailing address on the form.

3.       If you had no other insurance coverage 2017 or for 2018, you can call MHS Customer Service at 1-800-451-7929. An automated phone system is available 24/7, or representatives are available Monday-Friday, 8 a.m.-5 p.m. ET. 
If you have questions about the annual COB process, please contact MHS at 1-800-451-7929.