How CRNA Billing Works and What You'll Pay

What a CRNA is and why you see a separate bill

A CRNA is a Certified Registered Nurse Anesthetist — a nurse with advanced training who administers anesthesia during surgery, procedures, or childbirth. You will often see a separate bill from a CRNA even though you thought anesthesia was included in your hospital or surgical center bill. This happens because CRNAs are frequently independent contractors or work for anesthesia groups, not directly for the facility where your procedure took place.

The facility bills you for the room, equipment, and surgical team. The CRNA or their employer bills you separately for the anesthesia service itself. This split billing is standard across most U.S. hospitals and surgical centers, and it means you may receive two or more bills for what felt like one service.

Understanding how CRNA charges work — what they cover, why they vary, and what you can do if the bill seems wrong — helps you spot errors and know your options before you pay.

Key Takeaways

• CRNA bills arrive separately from your hospital or surgical center bill because anesthesia services are usually billed by an independent contractor or anesthesia group, not the facility.
• CRNA charges depend on the type of anesthesia, how long you were under, your medical history, and whether the CRNA worked alone or with an anesthesiologist — not on a flat fee per procedure.
• Your insurance may cover CRNA services at a different rate than the facility bill, and out-of-network CRNAs can result in balance bills even when your surgery was in-network.
• You can request an itemized bill, ask your surgeon's office which CRNA group will be involved before your procedure, and dispute charges that seem incorrect or were not disclosed in advance.

How CRNA charges are calculated

CRNA fees are not a flat rate. They are based on several factors: the type of anesthesia used (general, regional, or monitored sedation), how long the anesthesia was administered, your age and medical history, and whether the CRNA worked independently or under the supervision of an anesthesiologist. A 30-minute procedure under light sedation will cost less than a three-hour surgery under general anesthesia.

Insurance companies and Medicare have their own payment schedules for CRNA services. The amount your insurance pays depends on your plan, your deductible, and whether the CRNA is in-network with your insurance. The CRNA's billed amount (called the "charge") is often higher than what insurance actually pays. If you have not met your deductible, you may owe a portion of the CRNA's charge out of pocket.

Some anesthesia groups charge a base fee plus time-based fees. Others use a single bundled rate. Ask your surgeon's office or the facility's billing department which anesthesia group will handle your procedure and request their fee schedule before your surgery date. This gives you time to contact your insurance company and understand what you will owe.

In-network versus out-of-network CRNA bills

A CRNA can be out-of-network with your insurance even if your surgery happens at an in-network hospital. This is one of the most common sources of surprise medical bills. Your surgeon and the facility may be in-network, but the anesthesia group contracted to work there may not be.

When a CRNA is out-of-network, your insurance may pay less, and you may receive a balance bill — a bill for the difference between what the CRNA charged and what your insurance paid. Federal law (the No Surprises Act) limits balance bills in some situations, but it does not cover all anesthesia services, and the rules vary by state and insurance type.

Before your procedure, call your insurance company and ask: "Is the anesthesia provider in-network for my plan?" Get the name of the anesthesia group from your surgeon's office or the facility and verify their network status. If they are out-of-network and you have time before your surgery, ask your surgeon whether another in-network anesthesia group can be used instead.

What to do if you receive a CRNA bill you did not expect

If a CRNA bill arrives and you were not told in advance that you would receive a separate charge, or if the amount seems much higher than you were quoted, do not ignore it. Request an itemized bill from the CRNA's billing office or the anesthesia group. An itemized bill breaks down exactly what you are being charged for — the type of anesthesia, the time spent, any additional services — and makes it easier to spot errors.

Compare the itemized bill to your surgical records. Check that the anesthesia type, duration, and date match what actually happened. If the bill lists services you did not receive or charges that seem duplicated, contact the billing office in writing and explain the discrepancy. Keep copies of all correspondence.

If you believe the bill violates the No Surprises Act (because you received no advance notice of the out-of-network status, for example), you can file a complaint with your state's insurance commissioner or your state's attorney general's office. Your insurance company can also help you dispute an out-of-network balance bill if you notify them promptly.

Payment plans and financial hardship options

If you cannot pay the CRNA bill in full, contact the anesthesia group's billing office and ask whether they offer payment plans. Many do, and some will set up a plan with no interest if you pay within a certain timeframe (often 6 to 12 months). Get any payment plan agreement in writing before you make your first payment.

If you are experiencing financial hardship, ask whether the anesthesia group has a financial assistance program or charity care policy. Some do, though they are less common than hospital financial assistance programs. Be prepared to provide proof of income and household size if you apply.

If the CRNA bill goes unpaid and is sent to a collection agency, you have rights. You can request debt validation (proof that the debt is real and the amount is correct) and dispute inaccurate charges. Do not ignore collection notices; responding protects your credit and keeps your options open.

How insurance covers CRNA services

Your insurance plan covers CRNA services as part of your surgical or procedural benefit, but the coverage rules depend on your specific plan. Some plans cover anesthesia at 100 percent after you meet your deductible. Others require a copay or coinsurance (a percentage of the cost). Your plan documents or your insurance company's website should list anesthesia coverage under "surgical services" or "anesthesia."

Medicare covers CRNA services when they are medically necessary. Medicare pays the CRNA or the anesthesia group directly, and you are responsible for your deductible and coinsurance (usually 20 percent of the approved amount). If the CRNA is not enrolled in Medicare, they cannot bill Medicare patients directly; the facility must arrange for an enrolled provider.

Medicaid coverage of CRNA services varies by state. Some states cover CRNAs at the same rate as anesthesiologists; others pay less. Contact your state Medicaid program or your Medicaid managed care plan to confirm coverage before your procedure.

Questions to ask before your procedure

Before any surgery or procedure requiring anesthesia, ask your surgeon's office these questions in writing and request written answers: Who will be administering the anesthesia — a CRNA, an anesthesiologist, or both? Is that provider in-network with my insurance? What is the estimated CRNA charge? Will I receive a separate bill from the CRNA, or is it included in the facility bill?

Write down the answers and keep them with your surgical paperwork. If you later receive a bill that contradicts what you were told, you have documentation to support a dispute. If you are told the CRNA is out-of-network and you want to avoid a balance bill, ask whether an in-network anesthesia provider is available or whether the facility can negotiate the out-of-network charge.

Frequently Asked Questions

Can I choose my own CRNA or anesthesiologist?

In most cases, no. The facility or your surgeon's office contracts with specific anesthesia providers or groups. You can ask your surgeon whether alternatives are available, but you cannot usually select an individual CRNA. If you have concerns about a specific provider, discuss them with your surgeon before the procedure date.

What if the CRNA bill is much higher than my deductible?

Contact your insurance company and ask them to explain the charge. If the CRNA is out-of-network, your insurance may have paid less than the billed amount, leaving you responsible for the difference. Request an explanation of benefits (EOB) from your insurance, which shows what they paid and what you owe. If the amount still seems wrong, ask the CRNA's billing office for an itemized bill and compare it to your insurance company's records.

What happens if I do not pay a CRNA bill?

Unpaid CRNA bills can be sent to a collection agency, which will damage your credit score and may result in wage garnishment or a lawsuit. Contact the billing office as soon as you know you cannot pay and discuss a payment plan or financial hardship options. Responding to collection notices protects your rights.

Does the No Surprises Act protect me from CRNA balance bills?

The No Surprises Act limits balance bills for out-of-network providers in emergency situations and for non-emergency care at in-network facilities, but the rules are complex and do not cover all anesthesia scenarios. If you believe you received a surprise bill, contact your state insurance commissioner or your insurance company's appeals department for guidance.

Can I get a refund if I was overcharged?

Yes, if you can prove the charge was incorrect. Request an itemized bill, compare it to your surgical records, and if you find errors, submit a written dispute to the CRNA's billing office. Include copies of the itemized bill, your surgical records, and any communication showing what you were told the charge would be. Keep records of all correspondence.