A guide for independent practices

How Provider Credentialing Works

Understand credentialing, payer enrollment, CAQH, documentation, and follow-up before your independent practice joins an insurance network.

By Minds Unraveled · Sources reviewed October 16, 2026

Start with the provider, practice, and payer

Joining an insurance network involves several related steps. The requirements can change with the clinician’s license, practice location, group arrangement, and payer. Before starting, list the providers and locations involved, the plans you want to join, and any existing applications. Keep a new provider joining a group separate from a new practice joining a network.

Four terms that describe different work

These terms help you ask a more precise question when checking an application’s status.

Credentialing: the payer reviews and verifies professional qualifications, including education, training, and licensure.
Enrollment: the provider or practice applies to register with a payer or public program. Medicare has its own enrollment process through PECOS or an applicable paper application.
Contracting: the practice and payer address network participation terms. Receiving a contract does not confirm credentialing approval or active participation.
Revalidation: an existing enrollment record is renewed when the program requires it. This is separate from reviewing professional credentials again, called recredentialing.

UnitedHealthcare: Credentialing and recredentialing FAQ CMS: Become a Medicare Provider or Supplier UnitedHealthcare: Medical provider network participation CMS: Revalidations — Renewing Your Enrollment

Prepare the information the payer actually requests

Start with the current checklist for your provider type. Requested information may include licenses, professional education and work history, liability coverage, provider identifiers, and practice details. Requirements vary, so a generic checklist should not replace the payer’s instructions.

Check that names, locations, and supporting documents agree. Assign someone to obtain missing items and someone to review the application before submission. Keep sensitive provider and business documents in an authorized system; a public website inquiry is not the place to send them.

UnitedHealthcare: Credentialing and recredentialing FAQ

Understand where CAQH fits

The CAQH Provider Data Portal lets clinicians enter professional information, upload supporting documents, attest to accuracy, and authorize participating organizations to access the profile. Providers should check their profile and reminders regularly. Current CAQH guidance specifies re-attestation every 120 days, or 180 days for Illinois providers; directory confirmation can follow a different schedule.

Completing a profile does not establish participation with every payer. Confirm which application route each plan requires and whether it needs access to your profile. These are provider responsibilities to plan for, regardless of who assists with the paperwork.

DataSpring, powered by CAQH: Provider Data Portal FAQs UnitedHealthcare: Medical provider network participation

Follow each program’s application process

For Medicare, the Medicare Administrative Contractor can request further information and answer enrollment-status questions. State Medicaid enrollment and managed-care participation also need separate attention.

In Indiana, an enrolled IHCP provider applies directly to the managed care organizations it wants to join. Kentucky’s enrollment guidance likewise explains that selecting an MCO in the state portal does not create an MCO contract; the provider must apply to that organization separately.

CMS: Become a Medicare Provider or Supplier Indiana Medicaid: Enrolling as a Managed Care Program Provider Kentucky Medicaid: How to Apply for a Medicaid Provider ID

Track status and the next action

Use a simple application log in an appropriate business system. Record the submission date, reference number, current status, outstanding requirement, person responsible, and next follow-up date. Save confirmations and payer responses so another team member can understand what happened.

When following up, ask whether the application is complete, what remains under review, and whether anything is needed from the practice. A useful update identifies an action or a confirmed waiting point. It should not turn an estimated date into a promise.

Confirm participation and keep records current

Before relying on in-network status, obtain the payer’s confirmation of the applicable provider, location, plan, and effective date. Credentialing, contracting, and loading the provider into payer systems can be separate stages. Application submission alone does not establish network participation or assure claim payment.

After approval, keep a calendar for required updates, attestations, and renewals. Follow the program’s actual notices and due dates: CMS can request off-cycle revalidation, and Indiana has announced accelerated revalidation for certain providers beginning in 2026. Do not assume every enrollment can wait five years.

UnitedHealthcare: Medical provider network participation CMS: Revalidations — Renewing Your Enrollment Indiana Medicaid: Revalidate Your Provider Enrollment

Sources and further reading

Requirements can change. Use the payer or program’s current instructions for your provider type and location.

All practice resources