Claims & Benefits

New Members

After signing up please watch your mail for a letter containing a My-Chart Activation code. You will need this activation code to create an account. If you have not received this letter please call customer service at 844-262-1560.

Viewing your claims

Claims information and benefit usage are available to view online through My-Chart.

Looking for your card?

Looking for a way to access your ID card?  You can get your ID card on any mobile devices through our partner University of Utah Health Plans, who will be processing our claims in 2020.

Just search for the University of Utah Health Plans or UUHP in your app store.  The login is your ID number.  The pin is the last four digits of your ID number.

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Pay my bill

You choose! Online, Phone, Or Mail

Send it by mail

Please make checks payable to Mountain Health CO-OP, and mail to the address below:

LB 410035

Mountain Health Cooperative

PO Box 35145

Seattle WA 98124-5145

Express Mail payments:

Lockbox Services-#410035

18035 Sperry Dr

Tukwila, WA 98188-4750

Report Changes to Your Plan

Life moves quickly—make sure your insurance is keeping up. Examples of life event changes include marriage, divorce, birth, adoption, a change in salary or a change of address.

Your Health Idaho

Email Portal

  • You receive a premium tax credit, to report any household changes please call YHI: 1-855-944-3246

  • If you need to terminate your coverage please call YHI: 1-855-944-3246

Use the email portal to securely return the change form.  If you haven’t used the Email Portal before, you will need to register your email address in order to send encrypted emails to Mountain Health CO-OP. Click on the “Email Portal” button to begin.

If you signed up through please call

1-800-318-2596 or log in at to make changes to your plan.

If you enrolled directly through Mountain Health CO-OP

You can log into your online account to process changes:


Download the change form and email, mail or fax in

Member email disclaimer:

Please keep in mind that communications via email over the internet are not secure. Although it is unlikely, there is a possibility that information you include in an email to Mountain Health CO-OP can be intercepted and read by other parties besides the person to whom it is addressed. 


Company Fax disclaimer:

This fax and any attachment(s) is/are for authorized use by the intended recipient(s) only and must not be read, distributed, disclosed, used or copied by or to anyone else. If you are not the intended recipient, please notify the sender immediately and securely and permanently destroy this fax and any attachment(s). Thank you.