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Cooperative Health Insurance Fund of CNY Contact Information

Excellus Dedicated Customer Service Line

Contact Excellus Customer Service by telephone: 1- 877-253-4797

Call center professionals are available:  Monday – Thursday 8 AM - 5 PM    Friday 9 AM - 5 PM

Mailing Address

Excellus BlueCross BlueShield
P.O. Box 22999
Rochester, NY 14692


Visit ExcellusBCBS.com and follow instructions on the website for a secure email process.

Customer Service

Questions specific to an individual member’s claims or benefits should be directed to the Excellus Customer Service Department using the telephone number listed on the member’s identification card.

Hours of Operation

Monday – Thursday 8AM – 7PM, Friday 9AM – 7PM
Saturday 9AM – 1PM

For assistance in setting up member online accounts, call the Excellus Web Help Desk at 1-800-278-1247.  Web Help Desk hours are: Monday through Friday 9 AM to 4:30 PM EST.

Specific Plan Information (Visit Employee/Retiree Info Page)

The Cooperative Health Insurance Fund Of CNY
6820 Thompson Road
PO BOX 4754
Syracuse, NY 13221


A Proactive Partnership for Cost-Effective Health Care