Contact us

Select from the following to get help answering your questions.

For Apple Health (Medicaid) providers
I need help with ... Contact ...
  • Billing and claims
  • Service Card requests
  • Apple Health (Medicaid) health plan enrollments
  • Benefit questions
  • Technical issues with ProviderOne (providers only)

Medical Assistance Customer Service Center (MACSC)

Important! If you need assistance on a claim close to the two-year timely filing deadline, please type "Urgent, timely issue." in the Other Comments box.

Phone: 1-800-562-3022 (choose "provider services")
Long waits are sometimes required, but self-service options are available using the web forms above.

TRS: 711 through Washington Relay.

For behavioral health providers
I need help with ... Contact ...
  • Apple Health behavioral health
  • Non-Apple Health behavioral health
  • Mental health
  • Substance use
  • Recovery support
  • Peer support
  • Employment support
  • Housing support
  • Prevention

In crisis? If you need immediate assistance, call 911. All people in Washington have access to the Washington Recovery Help Line at 1-866-789-1511 (24/7) and county mental health crisis lines

Have a question about a specific program within the Division of Behavioral Health and Recovery?

  • Behavioral health licensing and certification

Department of Health (DOH) Health Systems Quality Assurance Division (HSQA)
Phone: 1-360-236-4700

For complaints, reporting fraud, and access to ProviderOne
I need help with ... Contact ...
  • Comments
  • Complaints
  • Legislative and government inquiries


Note: This is not a secure communication and should not include any personal health information. Please include a Services Card number for identification purposes and faster service.

  • Reporting suspected Medicaid fraud

Phone: 1-833-794-2345 (toll free)

  • Being locked out of ProviderOne

ProviderOne Security

Users can unlock their own accounts by using the password reset functionality in ProviderOne.

If you are still having issues, you must contact your organization/office's system administrator for assistance. If you are a system administrator, email to regain system access.

For rates and fee schedules
I need help with ... Contact ...
  • Professional rates and fee schedules

Professional rates

  • Hospital rates, payments, and fee schedules

Office of Hospital Finance

Regular mail — send to:
Office of Hospital Finance

Health Care Authority
PO Box 45510
Olympia, WA 98504-5510

Certified and FedEx mail:
The sender cannot send this type of mail to a post office box. Refer to the USPS or FedEx mailing forms for their specific format.

Office of Hospital Finance
Health Care Authority (optional)
Cherry Street Plaza 5th Floor (MS:45510)
626 8th Avenue SE
Olympia, WA 98501