Contact us


It’s always our pleasure to serve Costco members. Please use the contact information below for questions or assistance related to Costco Personal Health Insurance, insured by Aetna.

By Phone:

Monday through Friday, 8 a.m. to 8 p.m. ET 
1-866-286-3155 (Sales)
1-866-456-7823 (Member Services)
or Click here.
We’ll call you.

By Live Online Chat:

Monday through Friday, 8 a.m. to 8 p.m. ET 
Click to Chat.

By E-Mail:

By Fax:


By Mail:

Costco Personal Health Insurance
2 South Pointe Drive, Suite 245
Lake Forest, CA 92630

Eligible for Medicare?

Costco and Aetna offer a Medicare Part D prescription plan.
Call for details: 1-877-313-4349

Costco Personal Health Insurance is the name of the program provided to members of Costco Wholesale through health benefits and health insurance plans underwritten by Aetna Life Insurance Company or, in Florida, by Aetna Health Inc. (Aetna). In some states, individuals may qualify as a business group of one and may be eligible for guaranteed issue, small-group health plans. Aetna small-group plans are not associated with Costco.