In-Network vs. Out-of-Network: How Much More Will You Pay?

A provider network is a group of hospitals, doctors, labs, and other healthcare providers that have agreed to accept negotiated rates from a specific insurance company. These negotiated rates are typically 40-60% below the provider's list price ¹, which is why in-network care costs patients so much less.

When you visit an in-network provider, three things happen that protect your wallet:

• —The provider charges the negotiated rate, not their full chargemaster price
• —Your insurer pays its share based on this lower rate
• —Your cost-sharing (copay, coinsurance, deductible) is calculated on the negotiated rate

When you visit an out-of-network provider, none of these protections apply by default:

• —The provider charges their full list price, which can be 2-5x the negotiated rate
• —Your insurer may pay a smaller share — or nothing at all, depending on your plan
• —Your cost-sharing is calculated on the provider's higher charges, or your insurer may apply an "allowed amount" that is far below the actual bill, leaving you responsible for the rest

The fundamental issue is that you do not choose your network — your employer or plan does. And network compositions change every year, meaning a provider who was in-network last year may not be this year.

The cost difference between in-network and out-of-network care varies by service, but the pattern is consistent: out-of-network costs dramatically more.

Emergency room visit:

• —In-network: $150 – $600 copay (patient responsibility)
• —Out-of-network: $1,500 – $4,000+ before No Surprises Act protections

Inpatient surgery (e.g., appendectomy):

• —In-network: $2,000 – $5,000 (after deductible, with coinsurance)
• —Out-of-network: $15,000 – $40,000+ (if balance billed)

MRI scan:

• —In-network: $250 – $700 (patient share)
• —Out-of-network: $1,100 – $3,000+

Specialist consultation:

• —In-network: $30 – $75 copay
• —Out-of-network: $200 – $500+

Anesthesia (per surgical hour):

• —In-network: $150 – $400 (patient share)
• —Out-of-network: $1,000 – $3,000+ per hour

These differences exist because in-network rates reflect negotiated discounts of 40-60% off list prices ¹. Out-of-network providers have no obligation to offer any discount at all.

Balance billing is the practice where an out-of-network provider bills you for the difference between their full charge and whatever your insurance paid. This is historically the most financially devastating aspect of out-of-network care.

Here is how it works: A surgeon charges $20,000 for a procedure. Your insurer considers the "allowed amount" to be $8,000 and pays 80% of that ($6,400). The surgeon then bills you for the remaining $13,600 — the $1,600 your insurer did not cover plus the $12,000 difference between the surgeon's charge and the allowed amount.

Before the No Surprises Act, patients had little recourse. Research by the Commonwealth Fund found that 18% of ER visits and 16% of in-network hospital stays involved at least one out-of-network charge — often from a provider the patient never chose, like an anesthesiologist or radiologist ².

Balance billing turned routine hospital visits into financial catastrophes. A patient could do everything right — choose an in-network hospital, verify coverage beforehand — and still receive a five-figure surprise bill from an out-of-network specialist who happened to be on call that day.

The No Surprises Act ³, effective since January 2022, fundamentally changed the rules for out-of-network billing. It does not solve every problem, but it provides critical protections in the most common surprise billing scenarios.

What the No Surprises Act covers:

• —Emergency services at any facility — in-network or out-of-network. You cannot be balance billed for ER care. Your cost-sharing must be calculated as if the provider were in-network.
• —Out-of-network providers at in-network facilities — if you receive care at an in-network hospital but are treated by an out-of-network doctor (anesthesiologist, radiologist, pathologist, etc.), you are protected from balance billing for that provider's charges.
• —Air ambulance services from out-of-network providers.

What it does NOT cover:

• —Non-emergency care at out-of-network facilities that you chose to visit
• —Ground ambulance services (a notable gap in the law)
• —Situations where you give written consent to waive your protections and accept out-of-network rates (providers can ask you to sign this, but you have the right to refuse)

How to use it: If you receive a balance bill that you believe violates the No Surprises Act, contact your insurer and the provider's billing department. Reference the No Surprises Act by name. If the issue is not resolved, file a complaint with CMS at cms.gov/nosurprises or call 1-800-985-3059.

Verifying network status before receiving care is the single most effective way to avoid out-of-network costs — but it requires more diligence than most patients realize.

Steps to verify network status:

• —Check your insurer's online directory — this is the starting point, but directories are often outdated. A KFF analysis found significant inaccuracies in provider directories across major insurers ¹.
• —Call your insurer directly and ask them to confirm that the specific provider, at the specific facility, is in-network for your specific plan. Get a reference number for the call.
• —Call the provider's office and verify that they accept your insurance plan. Ask explicitly: "Are you in-network with [Plan Name], not just [Insurance Company]?" Some providers accept an insurer but are not in-network for every plan that insurer offers.
• —For hospital visits, verify all providers — not just the hospital. Ask whether the anesthesiologists, radiologists, pathologists, and any consulting specialists are also in-network. This is where surprise bills most commonly originate.
• —Get written confirmation if possible, especially for scheduled procedures. An email or message through the patient portal creates a record.

If you are told a provider is in-network and later receive an out-of-network bill, your documentation of the verification becomes powerful evidence for an appeal.

If you have already received care from an out-of-network provider — whether by accident, in an emergency, or because you were not informed — you still have options to reduce or eliminate the cost difference.

Immediate steps:

• —Determine whether the No Surprises Act applies. If the care was emergency services, or if the out-of-network provider treated you at an in-network facility, you are protected from balance billing. Contact your insurer and cite the law.
• —Request an itemized bill from the provider and an EOB from your insurer. Compare the provider's charges, the insurer's allowed amount, and what you are being asked to pay.
• —Upload your bill to ORVO to see whether the provider's charges are reasonable compared to what other providers in your area charge for the same services. Out-of-network providers frequently charge well above the regional average.

Negotiation strategies:

• —Ask the provider for their in-network rate or a self-pay discount. Many providers will reduce out-of-network bills by 30-50% when patients ask, especially if the alternative is a lengthy dispute.
• —Appeal with your insurer for an in-network exception, particularly if no in-network provider was available for the service you needed. Insurers are required to cover care at in-network rates when their network lacks adequate providers for a covered service.
• —File a complaint with your state insurance commissioner if you believe you were misled about network status or if your insurer is not applying No Surprises Act protections correctly.
• —If the bill is large and the provider will not negotiate, consider hiring a medical billing advocate who specializes in out-of-network disputes.