How Long Does Credentialing Take for an ABA Practice?

Credentialing is the part of starting (or growing) an ABA practice that surprises everyone. You hire a BCBA on Monday. You think they'll be billable in a couple of weeks. Three months later, you're still waiting on one payer.

Realistic timelines

These are the ranges we see most often, assuming a clean application:

• Medicaid (state-by-state): 60–120 days
• Commercial payers (BCBS, Aetna, Cigna, UHC): 60–150 days
• Tricare: 90–180 days
• Re-credentialing (existing provider, new group): 30–90 days

The slow payer in your mix sets the timeline. If even one big payer takes 5 months, that's when your new BCBA becomes fully billable across your panel.

What slows credentialing down

It's almost never the payer's processing time. It's the back-and-forth:

• CAQH not attested or out of date
• License or NPI mismatch on the application
• Missing W-9 or group disclosure forms
• Payer requesting clarification and the email sitting in someone's inbox

Every round trip adds 2–4 weeks. The practices that get credentialed fastest are the ones with a single owner of the process who responds to payer requests within 24 hours.

How to start sooner than you think

You can start credentialing before a BCBA's start date — once you have their license, NPI, and signed authorization to submit on their behalf. Starting two months before their first day is normal. Starting four months before is smart.

The earlier you submit, the sooner they're billable. That's the entire credentialing strategy in one sentence.