Customer service

Call 800-971-1491 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.

Physician and Provider Relations

Call Physician and Provider Relations at 877-342-5258, option 4, for help with:

  • Changing your billing, practice, or remittance address
  • Adding a practice location
  • Updating your tax identification number
  • Adding/deleting a provider at your office
  • Fulfilling application and contract requests
  • Verifying contract status
  • Requesting copies of past communications

Send address updates (with start date) by fax to:
ATTN: Provider Relations at 425-918-4937

Credentialing application for new providers

Call 877-342-5258, option 4, for credentialing assistance.

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

Find out how to join our network.

Clinical Review

Call Clinical Review at 877-342-5258, option 3, for help with:

  • Pre-admission screening and triage
  • Clinical review
  • Case management



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

2018 holiday closures

  • January 1
  • May 28
  • July 4
  • September 3
  • November 22
  • November 23
  • December 24
  • December 25

Technical website help

To report issues related to our website, send us an email, call our service desk at 800-722-9780, weekdays, 6 a.m. to 6 p.m. 

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