Insurance Credentialing: Timeline, Cost and Steps (2026)
Insurance credentialing usually takes 60 to 180 days from a complete application to approval, and the payer controls the clock (Carepatron, citing Verisys, 2026). Until a provider is credentialed, you generally cannot bill that payer in network, which is why credentialing delays hit revenue so hard.
Here is how long each step takes, what it costs, and how to keep it from stalling.
How long credentialing takes by payer type
Medicare: commonly 60 to 90 days (Carepatron, citing Verisys).
Commercial payers: commonly 90 to 120 days, sometimes longer (Carepatron, citing Verisys).
Medicaid: anywhere from 30 to 180 or more days, depending on the state (Practice EHR, 2026).
Therapists: often four to six months, even with a clean application (Carepatron, citing SimplePractice).
The steps, in order
Get your NPI. Every provider needs a National Provider Identifier before applying anywhere.
Build your CAQH profile. CAQH ProView (CAQH now operates as DataSpring) is the database most commercial payers pull from. It is free for individual providers (Carepatron).
Gather your documents. License, DEA if needed, board certification, malpractice insurance, work history, W-9 and practice details.
Apply to each payer. Each insurer has its own application and its own pace.
Follow up. Applications stall quietly. Call the payer's provider enrollment department and keep notes.
Sign the contract and confirm your effective date. You can only bill in network from that date. Ask whether the payer allows a retroactive effective date.
Why credentialing gets stuck
An incomplete or expired CAQH profile. This is one of the most common causes of delay, and it holds up every payer that pulls from it (Carepatron).
Missed re-attestation. CAQH profiles must be re-attested at least every 120 days (180 in Illinois), or payers lose access to them (Carepatron, citing CAQH/DataSpring).
Missing documents or expired licenses and insurance.
Closed panels. Some payers are not accepting new providers for a specialty in a given area.
No follow-up. Applications that nobody checks on can sit for weeks.
What credentialing costs
Doing it yourself costs little in fees, but a lot of time. Professional credentialing services commonly charge about $1,500 to $3,000 per provider (Medwave), and full initial credentialing packages can run $2,500 to $5,000 per provider (Carepatron). The bigger cost is usually the revenue you cannot bill while you wait.
How to speed it up
Start the moment a provider signs, not on their first day.
Get the CAQH profile complete and attested before applying anywhere.
Apply to all payers at once, not one at a time.
Set calendar reminders for CAQH re-attestation and license renewals.
Follow up with every payer on a set schedule.
How Korps helps
Korps builds and maintains CAQH profiles, submits payer and Medicaid applications, follows up until approval, and tracks re-attestation and renewal dates.
Frequently asked questions
How long does insurance credentialing take?
Usually 60 to 180 days. Medicare is often faster; commercial payers and Medicaid can take longer.
How often do I need to re-attest CAQH?
At least every 120 days (180 in Illinois).
Can I see patients before I am credentialed?
You can, but you generally cannot bill that payer in network until your effective date. Ask each payer about retroactive effective dates.
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