Industry average for credentialing a new provider is 90–120 days. Some hospital systems quote 180. Our average across 60+ provider onboardings last year was 38 days. The methods aren't secret. They're just inconvenient.
Here's the actual playbook we run. It's mostly about doing five things in parallel that most practices do in sequence — and one specific CAQH habit that saves about three weeks all by itself.
Day 1: kick off three workflows simultaneously
Most practices wait for the provider's first day, then start credentialing. By then you've already lost a month of billing. Start the day the offer is signed.
On day one we open: (1) the CAQH ProView profile, (2) PECOS enrollment for Medicare, (3) state Medicaid enrollment. These each take different lengths of time and don't depend on each other. Running them in parallel saves 30–45 days vs sequencing them.
The CAQH attestation trap
CAQH ProView requires re-attestation every 120 days. If a provider has an old account from a previous job and they haven't logged in for over 120 days, the profile is "expired" — meaning every payer that pulls from CAQH gets stale data, which they reject.
Step one: log into the existing CAQH account before doing anything else. Update every section. Re-attest. Then upload all current documents. Most credentialing delays we see for experienced providers come from this single step being skipped — payers pull stale CAQH, request new info, the cycle eats 4–6 weeks.
Days 5–10: payer applications go out in waves
Group payers by complexity. Wave 1 (day 5): Medicare, state Medicaid, BCBS — these are the slowest, start them first. Wave 2 (day 8): big nationals — United, Aetna, Cigna, Humana. Wave 3 (day 10): regional and specialty plans.
Each application includes a cover letter with the practice tax ID, NPI Type 2, expected effective date, and a primary contact. That cover letter cuts about 5 days off average response time because credentialers don't have to chase basic info.
Days 10–25: weekly status calls — no exceptions
Once a week, every payer in process gets a status call. Not an email. A call. We document the rep's name, the date, and the next expected action. This sounds excessive. It works because credentialing departments triage based on follow-up frequency, not application order.
Practices that don't do weekly calls average 90+ day timelines. Practices that do average 35–45.
Days 25–38: effective dates land in waves
Medicare usually issues the effective date around day 28. State Medicaid around day 30. Commercials trail by 3–10 days. Some payers will backdate the effective date to the application date if you ask in writing — about 60% of the time, which is more than people assume.
Hospital privileging runs parallel, not after
If the provider needs hospital privileges, start the application on day 1 too. Hospital credentialing committees meet monthly, sometimes every six weeks. Missing one cycle adds 30–45 days. Most practices don't start hospital privileging until payer credentialing is done — that single sequencing decision is why hospital-affiliated providers often take 4+ months to onboard.