How to confirm a doctor is in-network (and keep proof)

You found a doctor, and the office says they take your insurance. But "taking your insurance" isn't the same as being in your plan's network. If the doctor turns out to be out-of-network, you could owe much more.

This checklist shows how to confirm a doctor's network status before your visit, and how to keep proof in case a bill comes in wrong. It's part of our guide on how to avoid surprise medical bills. If you're still picking a plan, see how to choose a health insurance plan first.

Why check more than once?

Your plan's network is the group of providers it has contracts with. Those contracts change, and directories can lag behind. A doctor may also be in-network at 1 office but not another.

So check 2 ways, the directory and a phone call, and save proof of both. It takes about 15 minutes per provider.

Your checklist

How do you check the directory?

Log in to your insurer's website or app and find the provider search. Pick your exact plan name from your insurance card. Insurers often run several networks, and a doctor can be in 1 but not another.

Search for the doctor by name. Then check the listing for:

• The office address where you'll be seen
• The specialty
• A note that says "in-network" for your plan

Take a screenshot that shows the date, your plan name, and the address. Save it in a folder for that visit. Networks change, so check again before each new course of care, and at least once a year.

What should you ask when you call?

Call the member services number on your insurance card. Have the doctor's full name and office address ready. If you can, also have the practice name and the doctor's National Provider Identifier (NPI) number. The office can give you both.

Ask:

1. Is this doctor in-network with my plan, at this address?
2. Is the practice or group they bill through also in-network?
3. Does my plan need prior approval or a referral for this visit?
4. Can you send me this answer in writing, by email or mail?

The No Surprises Act requires your plan to answer questions about a provider's network status within 1 business day. When you ask by phone, the answer must also come in writing, by email or mail, whichever you choose. Your plan must keep a record of it for at least 2 years.

Then call the doctor's office. Ask if the doctor is in-network with your exact plan name. Ask which practice name and tax ID number the office will bill under. A doctor who works for 2 groups or at 2 locations may be in-network through only 1 of them.

How do you document the call?

Your notes are your proof if a bill comes in wrong. Write down the same details every time.

Keep the notes with your screenshots, estimates, and approvals. A note on your phone works, as long as it has the date.

What does the law say if the directory is wrong?

The No Surprises Act has rules for provider directories in private health plans. These include employer, Marketplace, and individual plans. Plans must:

• Verify their directory information at least every 90 days
• Update the directory within 2 business days after a provider sends changes
• Remove providers they can't verify
• Answer your questions about network status within 1 business day

If your plan's directory, or its answer to your question, wrongly said a provider was in-network, you're protected. Your plan can't charge you more than your in-network cost sharing. That's your usual copay, coinsurance, and deductible. What you pay must count toward your in-network deductible and out-of-pocket limit.

If you already paid the provider more than your in-network share, the provider must refund the extra, plus interest.

As of September 2026, federal agencies haven't issued detailed rules for the directory requirements. The protection is still in effect. CMS says plans must follow it in the meantime, using a good faith, reasonable reading of the law. State rules may add more protections.

Say Priya's plan's online directory lists a dermatologist as in-network. She takes a dated screenshot and books a visit. Her in-network specialist copay is $50.

After the visit, the claim comes back out-of-network. The doctor left the network 4 months earlier, but the directory wasn't updated.

Item	Amount
The dermatologist's charge	$400
What her plan paid at first	$120
The bill the office sent Priya ($400 − $120)	$280
What Priya owes under the directory rule	$50
The amount she shouldn't have to pay ($280 − $50)	$230

Priya sends her screenshot to her plan and asks it to reprocess the claim with in-network cost sharing. She asks the office to hold the bill while the plan reviews it. If she had already paid the $280, the office would owe her a $230 refund, plus interest.

What if you're billed out-of-network anyway?

Don't pay the extra amount right away. Take these steps:

1. Compare the bill with your EOB. Our guide to comparing your medical bill vs. EOB shows how.
2. Call your plan. Say the directory or a member services call told you the provider was in-network. Give the date and reference number, and ask it to reprocess the claim.
3. Call the provider's billing office. Ask them to hold the bill while your plan reviews it.
4. Put it in writing. Our surprise bill dispute letter gives you the words. Attach your screenshot and notes.
5. Appeal if your plan says no. Our guide on how to appeal an insurance denial explains the steps.

If the provider was out-of-network at an in-network hospital or surgery center, a different protection may also apply. See whether the No Surprises Act applies to your bill.

When to get help

You can usually fix a network mistake with your proof and a few calls. It's worth getting help when:

• Your plan won't reprocess the claim, even with your screenshot or call notes.
• The provider keeps billing you or sends the bill to collections.
• You don't have proof and aren't sure what you relied on.

The No Surprises Help Desk answers questions and takes complaints at 1-800-985-3059. Your state insurance department or consumer assistance program can also help. A medical bill advocate can make the calls for you.