Provider Resources

InterWest offers a fair and reasonable level of payment to all participating providers that compares favorably to other payors in the local marketplace. There are no dues or fees that participating providers must pay to participate in InterWest.

InterWest is endorsed by the Montana Medical Association.

How to Join InterWest

To join InterWest Health, providers need to complete a Provider Application form and send it to InterWest, along with a signed Participating Provider Agreement for the applicable state. The application will be reviewed to make sure the provider is in compliance with the company’s credentialing standards. Once this review is completed, the Agreement will be executed, with a copy returned to the provider.

Participating providers are credentialed according to standards based on NCQA and URAC guidelines. Providers are credentialed initially at the time of enrollment and every 3 years thereafter.

Providers who practice in a group setting may participate in InterWest under one Agreement, as long as they are covered under the same Tax ID. A completed application will need to be submitted for each participating provider for credentialing purposes.

Providers interested in joining InterWest can obtain copies of InterWest’s Provider Application form and Participating Provider Agreement from this website or by contacting InterWest at (406) 542-1912 or toll free at (877) 542-1912. Providers practicing in Idaho, Washington and other states that utilize standard application forms are welcome to use those standard forms in place of the InterWest Provider Application.

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