# InterWest Health Preferred Provider Organization Montana Payer ID

- **Payer ID:** 84137
- **Other payer IDs:** 3451
- **Coverage types:** Medical
- **Programs:** Commercial
- **Where it operates:** Idaho, Montana, North Dakota, Nebraska, South Dakota, Utah, Washington, Wyoming
- **Payer website:** https://www.interwesthealth.com

## Other names

- InterWest Health
- Prime Health Services

## What You Can Check With InterWest Health Preferred Provider Organization Montana

- Eligibility and benefits for any service type InterWest Health Preferred Provider Organization Montana returns
- Instant results, 24/7, with no phone calls or portals

What a check returns is up to the payer: some return more detail than others.

Payer details updated Oct 18, 2026. Payers change IDs and plan names; when in doubt, use the ID on the member's card.

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Canonical: https://www.verifytx.com/payers/interwest-health-preferred-provider-organization-montana/