General anesthesia for a US surgery typically costs $500 to $2,500 cash-pay for a 1 to 3 hour case, billed separately from the surgeon and the facility. The charge is calculated from procedure base units plus time units, multiplied by a conversion factor that varies by region and payer. In Colombia, anesthesia is almost always inside the bundled surgical quote, typically $400 to $1,200 of the total. Local anesthesia and IV sedation cost a fraction of general.
Anesthesia is the surgery bill people forget to ask about, and then get surprised by. It is billed by a different provider (the anesthesiologist, a nurse anesthetist, or a group practice) and until the 2022 No Surprises Act it was one of the most common sources of out-of-network balance billing in the US. This guide explains how the charge is built, what drives it up, and how it compares abroad.
How US anesthesia is priced
The formula is (base units + time units + modifying units) × conversion factor.
- Base units are assigned to each procedure by the American Society of Anesthesiologists' relative value guide and reflect complexity: roughly 3 to 5 units for minor procedures, 6 to 10 for abdominal and orthopedic cases, 15 to 20+ for cardiac and major vascular.
- Time units are one unit per 15 minutes from the start of anesthesia care to hand-off in recovery, not just the surgical time.
- Modifying units add for emergency status, extremes of age, and higher ASA physical status classes.
- The conversion factor is the dollar value per unit. Medicare's national factor is about $20 per unit in 2026; commercial insurers pay roughly $70 to $120 per unit; cash-pay rates typically land between those.
Typical anesthesia charges by procedure
Cash-pay, general anesthesia unless noted, 2026Anesthesia type changes the price more than anything else
Local anesthesia
Numbing the surgical site only. You are awake. Used for hair transplant, minor skin surgery, dental work, some hand surgery. Cost is usually built into the procedure fee; no anesthesia provider is billed separately.
IV sedation and monitored anesthesia care (MAC)
Sedative drugs through an IV with an anesthesia provider monitoring you. You breathe on your own. Used for endoscopy, many cosmetic procedures, cataract surgery, some orthopedic procedures. Typically 30 to 60 percent of the cost of general anesthesia for the same duration.
Regional anesthesia
Spinal, epidural, or nerve block numbing a region of the body, often combined with light sedation. Common for knee and hip replacement, C-section, and limb surgery. Priced similarly to general anesthesia per unit; often shortens recovery-room time.
General anesthesia
Fully unconscious with a protected airway and an anesthesiologist or CRNA managing you throughout. Required for most abdominal, thoracic, spinal, and longer cosmetic procedures. The most expensive option because it carries the most base units and requires the most provider time.
Where a real saving hides. For procedures where the surgeon offers a choice (closed rhinoplasty, small-area liposuction, some hernia repairs), IV sedation instead of general can cut the anesthesia bill by half and shorten recovery. Ask whether your case can safely be done without general anesthesia. Do not push a surgeon who says no.
Anesthesiologist vs CRNA
A physician anesthesiologist (MD or DO) and a certified registered nurse anesthetist (CRNA) can both deliver anesthesia. In many US surgery centers, a CRNA works under an anesthesiologist's supervision, and the bill may carry both names. CRNA-only billing is typically 10 to 30 percent cheaper. In Colombia, anesthesia is delivered by a physician anesthesiologist (anestesiólogo), a medical specialty, and their fee is inside the surgeon's bundle.
How to avoid an anesthesia surprise bill
- Ask for the anesthesia estimate separately. The surgeon's office often does not know it. Call the anesthesia group the facility uses.
- Confirm network status. If insured, confirm the anesthesia provider is in-network. The No Surprises Act protects you from most out-of-network anesthesia balance bills at in-network facilities, but confirming avoids the dispute.
- Get a Good Faith Estimate if uninsured or self-pay. Providers are required to give one for scheduled care, and it should include anesthesia.
- Ask about type and duration. Estimated anesthesia time (not surgical time) times the per-unit rate is your number.
- Abroad, ask what happens if the case runs long. Colombian bundles normally absorb this; confirm in writing.
Get a quote where anesthesia is already inside the number
Colombian surgical quotes bundle the anesthesiologist. Send your procedure and we return itemized quotes from credentialed surgeons within 48 hours.
Request quotesWhatsApp usFrequently Asked
How much does general anesthesia cost per hour?
In US cash-pay terms, roughly $300 to $600 per hour of anesthesia time once base units are accounted for, though the first hour is more expensive than subsequent hours because base units are fixed. Commercial insurer rates run higher; Medicare far lower.
Is anesthesia included in the surgery price?
In the US, almost never; it is a separate bill from a separate provider. In transparent-pricing surgery centers and in Colombian international-patient quotes, yes, it is inside the single all-inclusive price.
Why did I get a bill from a doctor I never met?
Anesthesia providers bill independently, and the anesthesiologist of record may have supervised a CRNA who was in the room. Under the No Surprises Act, if your facility was in-network you generally cannot be balance-billed for out-of-network anesthesia beyond your in-network cost share.
Is anesthesia cheaper in Colombia because it is lower quality?
No. Anesthesia in Colombia is a physician specialty with residency training, and accredited hospitals use the same monitoring standards and drug classes. The cost difference reflects physician labor cost and the absence of separate billing overhead.
Does insurance cover anesthesia for cosmetic surgery?
No. Cosmetic procedures are cash-pay end to end, including anesthesia. If part of a procedure is medically necessary (for example, septoplasty within a rhinoplasty), the anesthesia is sometimes split between covered and cosmetic portions.