Corporate Headquarters

Mailing Address:

Members

Please contact Costco Health Solutions Customer Care toll- free at the number listed on your pharmacy benefit member ID card.

TTY (Toll- Free): 1-877-908-6024
Hours: 24 hours a day, 7 days a week

Member Feedback

To provide any member feedback, please contact CHSMemberFeedback@costco.com.

Sales

General Sales Inquires:

1-425-416-4115

Proposal Requests: CHSSales@costco.com