How long does insurance credentialing take?
Checked against our own applications on
Short answer
- Most plans take 60 to 120 days after they have a complete application. Some Medicaid plans quote 60 to 120 business days, which is closer to four or five months.
- The clock starts when the plan has everything, not when you first apply. Missing pages, mismatched names and unanswered emails restart it.
- Closed networks have no timeline at all: you go on a waiting list until they need your specialty.
Timelines we've seen in 2026
These come from applications we filed this year for a solo psychiatric nurse practitioner practice in the Richmond area. They are what each plan told us, or what actually happened.
- CAQH ProView: a few days to update and re-attest, if the practitioner does it promptly. Plans can't see the profile until it's attested and they're authorized.
- Optum Behavioral Health (UnitedHealthcare): a tax ID change was quoted at up to 45 days; adding networks to an existing contract, 30 to 45 days from when Optum logs the request.
- Carelon Behavioral Health (Anthem): application received, then a contract sent for e-signature five days later. Credentialing and contracting run in parallel after that.
- Aetna Better Health of Virginia (Medicaid): 60 to 120 business days once the contracting team forwards a complete packet to credentialing.
- Humana Healthy Horizons in Virginia (Medicaid): Humana quotes 60 to 90 days for a decision on a Request to Join. Ours was denied in two days (closed network) and the denial was overturned two days after we asked for reconsideration.
- TRICARE East: certification can take up to 90 days, and Humana Military asks you not to request updates before then.
- Sentara Health Plans: the behavioral health network is full, so new requests are reviewed in the order received with no date given.
What slows credentialing down
- A name that doesn't match the IRS. The legal name on your W-9 must match your IRS EIN letter (CP 575) exactly. An LLC's name goes on line 1. Aetna cancelled one tax ID change, and Aetna Better Health sent a W-9 back, over this.
- Email that never arrived. A rep may give you an email address, but if nothing confirms receipt, assume it's lost. Send documents while the rep is on the phone and ask for a case number.
- Contracts in spam. Plans send contracts through Adobe Acrobat Sign, DocuSign or OneSpan. One sat in a spam folder for days while the plan waited.
- CAQH not attested. Plans pull your data from CAQH. If it's out of date or the 120-day attestation lapsed, they stop.
- Blank pages. A single unsigned attestation page sent a 19-page Medicaid packet back to us.
- Calling too often. Some plans review in the order received and ask you not to request status. Calling doesn't move you up the list.
How to keep it moving
- Apply as a group first (your Type 2 NPI and EIN), then add yourself under the group, so you only do it once per plan.
- Keep one list of every application: what was sent, when, to whom, and the reference number.
- Check every open application on a schedule, but follow each plan's own rules on status requests.
- Answer document requests the same day. A plan that asks a question is usually waiting on you.
Specific plans: Aetna, Optum, Carelon, Humana Healthy Horizons, Sentara, Virginia Medicaid and CAQH.
More guides
- Virginia Medicaid credentialing for nurse practitioners
- Aetna credentialing: joining the network and changing your tax ID
- Humana Healthy Horizons in Virginia: how to join, and what to do if you're denied
- Sentara Health Plans credentialing for behavioral health
- Optum Behavioral Health credentialing: Provider Express, tax ID changes and adding networks
- Carelon Behavioral Health credentialing (Anthem's behavioral health network)
- CAQH ProView: what nurse practitioners need to do, and how often