Customer service

Call 800-971-1491, 8 a.m. to 5 p.m., PST, Monday through Friday, for help with:

  • Member benefits and eligibility verification
  • Claims payment, payment vouchers, or remittance assistance
  • Provider network status confirmation

Be sure to have the subscriber or member identification number available when calling.

Availity secure tools

For Availity technical support or registration information, call 800-282-4548,  8 a.m. to 8 p.m., Eastern Time, Monday - Friday.

Physician and Provider Relations

If you have questions, you can reach us by email. See the Join Our Network page for credentialing information.

Credentialing application for new providers

Mailing address:
PO Box 327 - MS 453
Seattle, WA 98111-0327
Fax: 425-918-4937

Find out how to join our network.

Clinical Review

Fax inpatient admission notification forms and related medical records to 888-742-1487.

Fax prior authorization request forms to 800-843-1114.


Call 800-971-1491

Mail billing and claims submissions to:

LifeWise Assurance Company
PO Box 91059
Seattle, WA 98111-9159

Electronic Data Interchange (EDI)

Call 800-435-2715 if you have questions about our electronic claims clearinghouse. To submit claims electronically, use 91049 as the payer ID.

Physician and provider appeals

To reach us by phone, call the LifeWise Customer Service number on the back of the member’s ID card.

Mail appeals to:

LifeWise Assurance Company
PO Box 91102
Seattle, WA 98111-9202

OneHealthPort user ID, password assistance

For issues with your OneHealthPort user ID or password, call OneHealthPort at 800-973-4797.