ProviderOne vs CAQH in Washington

Last verified: July 14, 2026.

If Washington credentialing search results send you to ProviderOne, CAQH, DataSpring, OneHealthPort, and ProviderSource, the issue is not you. These are different systems from different eras and workflows.

A therapy practice needs the right system for the right job.

Short version: Use ProviderOne for the HCA Medicaid provider record and operations; use CAQH/DataSpring for credentialing data; use OneHealthPort as an access layer where applicable; treat ProviderSource as a retired Washington credentialing workflow.

Comparison table in plain English

• ProviderOne: HCA enrollment, provider file, eligibility, fee-for-service claims, prior authorization, and payment operations.

• CAQH/DataSpring: provider credentialing data, attestations, documents, and payer-authorized access.

• OneHealthPort: single sign-on/access to participating sites, including ProviderOne.

• ProviderSource: historical Washington credentialing database access that is no longer the current statewide route.

What changed in 2024

Foundation for Health Care Quality says CAQH is the chosen vendor for Washington providers and plans to submit and retrieve credentialing applications as of January 1, 2024. Its transition FAQ says ProviderSource access through OneHealthPort was disabled on December 31, 2023.

DataSpring is the current CAQH-facing brand providers may see for provider data. The site still links clinician users to the Provider Data Portal at proview.caqh.org.

What ProviderOne still does

The CAQH transition did not replace ProviderOne. ProviderOne remains the HCA system for enrollment applications and the operational portal for many Apple Health eligibility, claim, prior-authorization, and payment tasks.

How to delegate access safely

For ProviderOne, delegate by creating named users and profiles through the System Administrator workflow. For CAQH/DataSpring, delegate through CAQH’s own authorization and account controls. Do not share an owner’s password in either system.

Mismatch checks before submitting to an MCO

• NPPES legal name, taxonomy, Type 1 and Type 2 NPIs.

• ProviderOne provider file, locations, group relationships, and specialties.

• CAQH/DataSpring license, work history, disclosure, malpractice, and documents.

• W-9, contract entity name, roster rows, and payer effective dates.

Where Bomi Fits

Bomi helps therapy practices keep the operational layers aligned: HCA/ProviderOne enrollment, CAQH/DataSpring profile maintenance, MCO applications, portal access, eligibility checks, claim routing, denials, revalidation reminders, and first-paid-claim verification. The goal is not just an approval letter; it is billable access for the Apple Health members you actually see.

Operational note: This is general billing and credentialing education for Washington therapy practices, not legal, compliance, or payer-specific billing advice. Confirm current HCA, ProviderOne, CAQH/DataSpring, OneHealthPort, MCO, provider-manual, authorization, telehealth, and contract requirements before submitting enrollment, claims, or portal requests.

Related Washington Guides

• How to enroll in Washington Apple Health

• Set up ProviderOne access

• Give your biller ProviderOne access

• Apple Health enrollment vs MCO credentialing

Frequently Asked Questions

Is ProviderSource still the current Washington credentialing database?

No. Official Washington credentialing guidance says CAQH became the state credentialing vendor in 2024 and ProviderSource access through OneHealthPort ended December 31, 2023.

Does OneHealthPort decide credentialing?

No. OneHealthPort is an access/single-sign-on layer for participating sites. It is not the HCA enrollment application and does not make plan network decisions.

Sources

• HCA — Enroll as a provider

• HCA — Setup ProviderOne access

• FHCQ — Washington credentialing

• FHCQ — FAQ for CAQH transition

• DataSpring, powered by CAQH

• OneHealthPort — ProviderOne