Dental credentialing: how dentists join insurance networks

Where to apply for each dental network

Guardian, Humana, United Concordia, Principal and Ameritas run their own dental networks with their own applications. Most ask for the same documents, and many read the same CAQH profile, so the profile is worth getting right once.

Before you start

• Dental license, and DEA if you prescribe controlled substances
• NPI, and the practice's group NPI if you bill as a group
• Tax ID and W-9 for the practice you'll bill under
• Malpractice declarations page
• Dental school diploma, plus residency and specialty certificates
• CV with work history by month and year

Keep them in one folder and check the expiry dates first. The ADA says missing or expired documents are a major cause of delays, and one new dentist it interviewed in 2026 had a start date pushed back nearly three months by credentialing.

Getting credentialed, step by step

Step 1: Build your CAQH profile through the ADA

The ADA Credentialing Service is free for every US-licensed dentist, ADA member or not. Sign in at ADA.org/godigital, complete the profile, authorize the plans you want (the ADA recommends the global option, so every participating plan can credential you), then attest. Plans can't see an incomplete or unattested profile, and you re-attest every 120 days. CAQH renamed itself DataSpring in June 2026, but your login and profile didn't change. Our CAQH guide walks through each section.

Step 2: Choose your networks

Start with the plans your patients already carry: ask the front desk which cards come in most. Each PPO pays from its own fee schedule, and joining means accepting it as payment in full for covered care, so ask for the fees on your 15 or 20 most common procedures before you apply. Delta Dental's PPO and Premier networks have separate fee schedules, and PPO's is usually the lower one.

Step 3: Apply to each plan

Each plan is a separate application. Where a plan reads CAQH, the application is short. Where it doesn't, it has its own form, and some states require a state application instead. Use the Tax ID, practice name and address you'll actually bill under, written exactly as they appear on your W-9 and NPI record.

Step 4: Verification

The plan checks your license, DEA, dental school and specialty training, malpractice coverage and claims history, and sanctions. Answer its questions quickly: a request that sits unanswered stalls the whole file.

Step 5: The contract, the fee schedule and leasing

Credentialing approves you; the contract sets what you're paid. Many dental contracts also let the plan lease its network to other payers, so you can end up in-network with plans you never signed with, at your contracted fees. The ADA's advice is to ask for a list of every payer that can use your fee schedule, look for leasing clauses, and ask whether you can opt out. MetLife and Guardian let dentists opt out of their leasing arrangements, and by 2024 the ADA's state associations had helped pass PPO leasing laws in 30 states. If a patient's explanation of benefits shows you in-network with a plan you don't recognize, the ADA's Third Party Payer Concierge can help at 1-800-621-8099.

Step 6: Your effective date

Cigna emails you an approval with your effective date, and Aetna Dental sends a welcome letter. Until you have that date in writing, treat the plan's patients as out-of-network.

Associates, practice buyers and Tax ID changes

Credentialing is tied to you as a dentist. In-network status is tied to the Tax ID you bill under. That has three consequences:

• New associates need to be credentialed with each plan under the practice's Tax ID before their claims pay in-network.
• Buying a practice doesn't give you the seller's contracts. Each plan has to update or re-contract under your Tax ID, and they often want the final bill of sale first. Start the day the sale is signed, and ask each plan before you bill anything under the seller's Tax ID.
• Changing jobs can change your network status. Before you accept a position, check which contracts you're signing and whether they follow you.

Medicaid and Medicare for dentists

Medicaid: enroll with your state's Medicaid program, then credential with the dental plans that run Medicaid dental benefits in your state. In Michigan, for example, you enroll in the state's CHAMPS system before DentaQuest can pay you. DentaQuest takes either its own application or CAQH, and some states require CAQH. Medicaid enrollment can take months, so start it first.

Medicare: traditional Medicare pays for dental care only when it's tied to covered medical treatment, such as clearing an infection before an organ transplant or heart valve replacement. To bill those services yourself, you enroll in Medicare through PECOS. Medicare Advantage dental benefits run through dental carriers' own networks, such as Delta Dental's Medicare Advantage networks, and you're credentialed for them like any other plan. You don't have to enroll in Medicare or opt out to treat Medicare Advantage patients: CMS dropped that requirement in 2018.

How long dental credentialing takes

Dental plans don't publish a standard turnaround. As a planning range, allow 60 to 120 days per plan from a complete application with an attested CAQH profile. Aetna Dental says a network representative contacts you within 30 days of applying, and Medicaid enrollment often takes longer. Start 90 to 120 days before your first day or before a practice purchase closes.

After you're in: recredentialing

Dental plans recredential every three years under NCQA standards. Delta Dental, DentaQuest and Guardian all work on that cycle. Delta sends a notice 90 to 180 days ahead and says the review should take no more than 60 days. If your credentials lapse, Delta's contract ends and you reapply under its current agreement. Keep your CAQH attestation current every 120 days and update it whenever your license, DEA or malpractice policy renews. Our recredentialing guide covers every cycle.

Common mistakes

• CAQH profile not attested, or the plan not authorized, so the plan can't see it.
• Applying to the wrong Delta Dental company for the state where you practice.
• Signing without reading the fee schedule or the leasing clause.
• Billing as in-network before the effective date is in writing.
• A new associate or new owner billing under the wrong Tax ID.
• Missing a recredentialing notice, which can end the contract.

Common questions