ProviderOne Discovery Log

The ProviderOne system will be unavailable from 5:30 a.m. Saturday, March 14 until 8 a.m. Sunday, March 15 (26.5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

Effective for claims with dates of service in January 2026, the Health Care Authority (HCA) experienced a system error with patient participation causing HCA to put a temporary hold on all nursing home claims.

Unfortunately, approximately 20 claims were denied before HCA realized the system error and halted all remaining claims.

The larger system error has been resolved and all held claims have been released and scheduled to be paid this week.

The remaining 20 claims that were denied will be reprocessed by HCA with payment expected to occur next week.

If you have any questions or concerns, contact the Medical Assistance Customer Service Center (MACSC) at 1-800-562-3022.

The ProviderOne system will be unavailable from 4:30 a.m. until 2:30 p.m. on Saturday, January 24, 2026 (10 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

The ProviderOne system will be unavailable from 5 a.m. until 10 a.m. on Saturday, January 17, 2026 (5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

For Provider Log:  Some tribal claims processed after 12/5/2025 are not pricing correctly when the non-encounter line services are billed at less than the allowed amount.

For Staff Log:  Some tribal claims processed after 12/5/2025 are not pricing correctly when the non-encounter line services are billed at less than the allowed amount or are manually priced.

There will be a Mass adjustment of affected claims.

The ProviderOne system will be unavailable from 4 p.m. until 9 p.m. on Saturday, January 10, 2026 (5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

The ProviderOne system will be unavailable from 5:00 a.m. Saturday, December 20 until 7 a.m. Sunday, December 21 (26 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

Due to the observance of Christmas and New Years holidays, ProviderOne claims submission deadlines have been moved up to ensure that providers are able to receive payment and Remittance Advices (RA’s and HIPAA 835 files) on Friday of each impacted week. The following table details the updated claims submission deadlines for both ProviderOne and the Pharmacy POS systems.

ProviderOne Claims Submission Deadline Changes – Christmas and New Years

Please report any issues to: mmishelp@hca.wa.gov.

When trying to add billing provider details in a servicing provider’s application, ProviderOne gives an error when using the NPI.

If workaround can’t be used, might not be able to progress in applications or modifications.

In observance of Thanksgiving, state offices will be closed Thursday, November 27, 2025 and Friday, November 28, 2025. As a result, provider payments for the week of November 24, 2025 will be made on Wednesday, November 26, 2025, including the delivery of Remittance Advices (RAs) and HIPAA 835 remittance files.

Claim submission deadlines have been moved up to ensure that providers are able to receive payment and RA documents on November 26, 2025.

The deadline for submission of claims to ProviderOne for payment during the week of Thanksgiving will be Sunday, November 23, 2025 by 5 p.m..

The deadline for submission of pharmacy claims to the Point of Sale (POS) during the week of Thanksgiving will be Saturday, November 22, 2025, by 5 p.m.

Please report any issues to: mmishelp@hca.wa.gov.

Thank you.

In observance of Thanksgiving, state offices will be closed Thursday, November 27, 2025 and Friday, November 28, 2025. As a result, provider payments for the week of November 24, 2025 will be made on Wednesday, November 26, 2025, including the delivery of Remittance Advices (RAs) and HIPAA 835 remittance files.

Claim submission deadlines have been moved up to ensure that providers are able to receive payment and RA documents on November 26, 2025.

The deadline for submission of claims to ProviderOne for payment during the week of Thanksgiving will be Sunday, November 23, 2025, by 5 p.m.

The deadline for submission of pharmacy claims to the Point of Sale (POS) during the week of Thanksgiving will be Saturday, November 22, 2025, by 5 p.m.

Please report any issues to: mmishelp@hca.wa.gov.

Thank you.

The ProviderOne system will be unavailable from 11 a.m. until 8 p.m. on Saturday, November 8, 2025 (9 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

The ProviderOne system will be unavailable from 7 a.m. until 12 p.m. on Saturday, October 25, 2025 (5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you,

Provider access to ProviderOne has been restored.  The issue that was preventing access to ProviderOne (waproviderone.org) via both the ProviderOne Provider Portal and OneHealthPort have been resolved.  Users are now able to access the system as expected.

If you continue to experience an access issues please submit a ticket to mmishelp@hca.wa.gov

Thank you for your patience as we worked to resolve this issue.

The roster error “70087 The Billing Provider does not have an Administration” generates when using the ALL value in roster excel template for locations.

Using ALL value prevents roster data getting into ProviderOne

After new updates made to EFT account information is approved, the EFT status immediately switches to Failed when it should say In-Process.

Incorrect information displayed

HCA’s ProviderOne will be making an SFTP port change for ftp.waproviderone.org from 22 to 1025 effective October 13, 2025, at 6:00 p.m. (Pacific).

Action Required:

Update all EDI file submission and download scripts to use port 1025 on October 13, 2025, at 6:00 p.m. (Pacific) to avoid any disruptions. Do not change your port to 1025 prior to the change on October 13, 2025, at 6:00 p.m. (Pacific).

If you have any questions or need assistance, please reach out to hipaa-help@hca.wa.gov

Thank you for your attention to this update.

Provider Impact: Providers that currently access ftp.waproviderone.org

To all ProviderOne users

ProviderOne outage planned for Saturday, September 13, 2025, through Sunday, September 14, 2025

The ProviderOne system will be unavailable from 5:30 a.m. Saturday, September 13 until 8 a.m. Sunday, September 14 (26.5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

The ProviderOne system will be unavailable from 5:30 a.m. Saturday, July 12 until 8 a.m. Sunday, July 13 (25.5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

Please report any issues to:  mmishelp@hca.wa.gov.

Thank you.

In observance of Juneteenth, state offices will be closed Thursday, June 19, 2025.  As a result, provider payments for the week June 16, 2025, will be made on Saturday, June 21, 2025, including the delivery of Remittance Advices (RAs) and HIPAA 835 remittance files.

Thank you.

Due to the timing of the State Biennium End and the observance of Independence Day, payments to providers for the week of June 30, 2025, will be delayed and made the following week on Tuesday, July 8, 2025. Remittance Advices (RAs) and HIPAA 835 files will also be made available on Tuesday, July 8, 2025.  Normally payments and remittance advice documents would be available for providers on Friday, July 4, 2025 but must be moved due to the Biennium end and the holiday.

Claim submission deadlines have been updated as reflected below to ensure that providers are able to receive payment and Remittance Advice documents on July 8, 2025.

The deadline for submission of claims to ProviderOne in order to receive payment on July 8, 2025 will be extended to 5 p.m. on Wednesday, July 02, 2025.

The deadline for submission of pharmacy claims to the Point of Sale (POS) in order to receive payment on July 8, 2025 will be extended to 5 p.m. on Tuesday, July 1, 2025.

Payment and claims submission deadlines for the week of July 7, 2025 will not be impacted.  Two payments will be made during this week.

Due to the timing of the State Biennium End and the observance of Independence Day, payments to providers for the week of June 30, 2025, will be delayed and made the following week on Tuesday, July 8, 2025. Remittance Advices (RAs) and HIPAA 835 files will also be made available on Tuesday, July 8, 2025.  Normally payments and remittance advice documents would be available for providers on Friday, July 4, 2025, but must be moved due to the Biennium end and the holiday.

Claim submission deadlines have been updated as reflected below to ensure that providers are able to receive payment and Remittance Advice documents on July 8, 2025.

The deadline for submission of claims to ProviderOne in order to receive payment on July 8, 2025, will be extended to 5 p.m. on Wednesday, July 02, 2025.

The deadline for submission of pharmacy claims to the Point of Sale (POS) in order to receive payment on July 8, 2025 will be extended to 5 p.m. on Tuesday, July 1, 2025.

Payment and claims submission deadlines for the week of July 7, 2025 will not be impacted.  Two payments will be made during this week.

The ProviderOne system outage planned for 5:30 a.m. Saturday, June 14 until 8 a.m. Sunday, June 15 (25.5 hours), has been cancelled and will be rescheduled for a future date.  The ProviderOne system will be available and fully operational on Saturday, June 14, 2025 and Sunday, June 15, 2025.

To all ProviderOne users

ProviderOne outage planned for Saturday, June 14, 2025, through Sunday, June 15, 2025

The ProviderOne system will be unavailable from 5:30 a.m. Saturday, June 14 until 8 a.m. Sunday, June 15 (25.5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete.

ProviderOne Portal is returning error “Exception in fetching multiple list record” when the Client’s last name is submitted with an apostrophe from Page ID: dlgCreateBatchFromTemplate(Claims).

When navigating in the ProviderOne Provider portal some providers are receiving error messages when attempting to select certain hyperlinks, or when attempting to submit a claim.

The error message received can be one of many:

• A blank screen with a close button in the upper left corner
• A warning message at the top of page: 'The service code or modifier submitted is invalid'

All error messages may not be identified yet. These error messages may not be a ProviderOne issue. Many times, this indicates the Provider needs to allow the ProviderOne URL to their allowed sites under pop-ups and redirects in their browser settings. 

Instructions to provide for the provider

Open your browser, Google Chrome, MS Edge, etc.

If using edge:

1. Go to settings.
2. On the left side of the screen, select ‘Cookies and site permissions’.
3. Under All Permissions, select ‘Pop-ups and redirects’.
4. Go to Allow.
   • Check if the ProviderOne URL https://www.waproviderone.org is listed.
5. If no, then select ‘ADD’.
6. Type in https://www.waproviderone.org.
   • (IMPORTANT: Make sure that the URL does not contain any typos, extra spaces, or extra characters.)
7. Close the browser and restart.

If using chrome:

1. Go to settings.
2. On the left side of the screen, select ‘Privacy and security’.
3. Under Privacy and Security select ‘Site settings’.
4. Select ‘Pop-ups and redirects’.
5. Go to Allow.
   • Check if the ProviderOne URL https://www.waproviderone.org is listed.
6. If no, then select ‘ADD’.
7. Type in https://www.waproviderone.org.
   • (IMPORTANT: Make sure that the URL does not contain any typos, extra spaces, or extra characters.)
8. Close the browser and restart.

If this does not fix the issue, the provider or staff can submit a ticket to MMIS. This will create a ticket for the ProviderOne Operations team to resolve.

The popup blocker will prevent the providers from submitting their claims to the ProviderOne system.

To all ProviderOne users

ProviderOne outage planned for Saturday, March 8, 2025, through Sunday, March 9, 2025

The ProviderOne system will be unavailable from 4:30 a.m. Saturday, March 8 until 8 a.m. Sunday, March 9 (26.5 hours) due to scheduled maintenance.

This outage does not affect the Pharmacy POS

Pharmacies will still be able to submit claims for processing and faxes can be sent during the outage. Faxes will be processed after the outage is complete

We have become aware of a Remittance Advice reconciliation issue that occurred during last week’s payment and remittance cycle on January 1-3, 2025.  To be clear, this is a remittance issue, not a payment issue.  While we are still diagnosing the root cause and remediation, we want to provide assurance that payments made last week on January 3, were accurate.  Impacted providers received a Remittance Advice showing a lower payment amount than the actual payment amount received by the providers.  Once remediation activities have been defined, specific outreach will be conducted with impacted providers.

Please submit additional questions to MMISHelp@hca.wa.gov

When OHP subscriber is accessing ProviderOne from OHP, OHP sends to ProviderOne the OHP role the OHP subscriber has associated.  When the ProviderOne security domain does not have ProviderOne profiles associated for ProviderOne profiles to OHP role, the incorrect message is displayed "No User Profiles assigned to the User. Please contact HCA ProviderOne Security”. 

The correct message is "Error: Please contact System Administrator. There are no ProviderOne profiles associated with your roles".