Plan 90 to 150 days from first submission to first paid insured session if you run credentialing yourself, and 60 to 120 days with someone who does it daily. Commercial payers take 60 to 150 days each and run in parallel. Medicare processes 90 percent of online PECOS applications within 45 days and 99 percent within 60. Medicaid is per state and ranges from a few weeks to several months, with managed Medicaid plans adding a second cycle on top.
Three clocks keep running after approval: CAQH must be re-attested every 120 days or every application drawing from it freezes; Medicare revalidates every five years and deactivates billing if you miss it; commercial payers re-credential roughly every three years. Medicare permits a retroactive effective date of up to 30 days. Most commercial payers no longer permit any.
How long does each payer type take?
Commercial payers are the slowest and the most variable; Medicare is the most predictable because CMS publishes its processing standard; Medicaid depends entirely on the state. The figures below assume a complete first submission.
| Payer type | Typical time to effective date | What drives the variance | Source of the figure |
|---|---|---|---|
| Commercial (Aetna, BCBS, Cigna, UnitedHealthcare, Anthem) | 60 to 150 days | Panel status, CAQH completeness, speed of your replies to queries; committee meets monthly at most payers | Market experience; payers do not publish standards |
| Behavioural health carve-outs (Optum Behavioral, Magellan) | 90 to 180 days | Application routes through a specialty vendor, adding a hand-off | Market experience |
| Medicare (PECOS, online) | 45 to 60 days | CMS requires MACs to process 90% within 45 days and 99% within 60 days of the signed certification statement | CMS roadmap |
| Medicare (paper CMS-855) | About 65 days | Paper adds mail and keying time; use PECOS | CMS roadmap |
| State Medicaid (fee-for-service) | Weeks to several months | Entirely state-dependent; requires that state's licence first | State Medicaid agencies publish individually |
| Managed Medicaid plans | Add 60 to 120 days | A second credentialing cycle after state enrollment, on commercial rules | Market experience |
The timeline assumes you answer. Payers quote processing time for a complete file. Most first submissions are not complete, and a query that sits unanswered in a portal for three weeks adds three weeks. The biggest single lever on credentialing time is response time to document requests, not the payer.
What happens before the clock even starts?
Three prerequisites, each with its own timeline: an NPI (same day), a state licence in the state you will bill (weeks to months) and a complete CAQH profile (a day to build, then maintained every 120 days). Credentialing time is counted from a complete submission, not from the day you decide to join a panel.
NPI: same day to a few days
Type 1 for you, Type 2 for the practice entity, both free through NPPES.
State licence: weeks to months
Required before any payer in that state will look at you. Compacts shorten this for eligible clinicians; see which compacts are live.
CAQH profile: one day, then every 120 days
Most commercial payers pull from CAQH ProView rather than asking you. Build it once, completely, with every document current.
Submit everything in parallel
Payers do not wait for each other. Five applications on the same day finish in roughly the time of the slowest one, not the sum.
What is the CAQH 120-day rule?
CAQH requires providers to re-attest their profile every 120 days (180 in Illinois). Miss it and the profile status changes to Expired, and every payer application drawing from it stalls, silently.
This is the most common cause of a credentialing delay that nobody can explain. The payer sees an expired profile and waits. You see nothing, because the payer does not tell you. Set a 100-day reminder and treat it as non-negotiable. Details in the CAQH ProView FAQs.
How often do I have to do this again?
Medicare revalidates every five years (three for DMEPOS suppliers). Commercial payers re-credential roughly every three years. CAQH every 120 days. A group of ten clinicians across six payers is re-credentialing continuously.
Medicare: 5 years
Your MAC sends notice two to three months before the due date, and CMS posts due dates six to seven months ahead. Miss it and billing is deactivated; you resubmit a full application and Medicare pays nothing for the gap. CMS revalidations.
Commercial: about 3 years
Most plans follow the NCQA 36-month cycle. Notices go to the address on file; a stale address is the usual reason a re-credentialing is missed and a contract terminated.
CAQH: 120 days
Not a re-credentialing, but the input every commercial re-credentialing depends on. Keep it current and re-credentialing is 30 to 90 days; let it lapse and it becomes a fresh application.
State licence: 1 to 3 years
A lapsed licence terminates every payer contract in that state and, for compact practice, every privilege attached to it.
Can I bill for sessions before my effective date?
Medicare: up to 30 days before the application was received, in defined circumstances, under 42 CFR 424.520. Medicaid: varies by state, often some retroactivity. Most commercial payers: no.
Where retroactivity exists it usually runs from the application date, not from when you started seeing patients. Sessions before that are generally unpayable. Hold claims until the effective date is confirmed in writing, then file inside the timely-filing window. The regulation is at eCFR 424.520.
The fastest route to insured patients is not faster credentialing. It is joining a group that already holds the contracts, or a platform that lets you bill under its own. Both put you in front of insured clients in weeks rather than months; both cost you rate and control. Independent paneling is 90 to 150 days, but the contract is yours. The FAQ covers the trade-off.
What is a realistic plan for a launch date?
Six months before opening for a new state plus payers. Three to four months if you already hold the licence. Longer for a group. Work backwards from the first insured session.
| Weeks before launch | Milestone |
|---|---|
| 24 | State licence application in (or compact privilege purchased) |
| 20 | NPI confirmed, CAQH profile complete and attested, malpractice bound |
| 16 | Every commercial and Medicaid application submitted the same week; Medicare via PECOS |
| 12 to 8 | Answer every payer query within 48 hours; chase silent applications every two weeks |
| 6 | Medicare effective date typically confirmed |
| 4 to 0 | Commercial effective dates arrive; schedule insured patients only after each one is in writing |
What each of these steps costs is in what licensing and credentialing actually cost.
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Every regulatory figure on this page is taken from the issuing state board, compact commission or CMS and was verified on 18 September 2026. Fees and compact status change; confirm with the relevant board before relying on them.
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