Prostate cancer radiation treatment cost: per session, per course, and on Medicare in 2026

Why the same course shows up as $9,000, $30,000, and $110,000

Every published radiation price belongs to one of four price types, and the four are not interchangeable. A hospital chargemaster list price is the starting number before any discount. A negotiated rate is what a specific insurer has agreed to pay that specific hospital. The Medicare-approved amount is a national schedule adjusted for local wages. A self-pay or cash price is whatever the hospital offers to a person with no insurer in the middle. Searches mix all four, which is why one result says a session costs $564 and the next says it costs $3,300.

The spread is documented. When researchers pulled February 2019 chargemasters from 63 NCI-designated cancer centers, 52 listed a per-session IMRT price. The median was $3,300, the range was $656 to $14,252, and a 28-session course listed anywhere from $18,368 to $399,056 with a mean of $111,729. Medicare would have paid $11,091 for the same course. Private insurers typically pay 100 to 400 percent of the Medicare rate, and the delivery sessions make up 50 to 75 percent of the total price of a course.

Radiation is also one of the least-posted prostate services. In December 2021, of 58 NCI centers with a shoppable-services tool, 6 posted a price for external-beam radiation and 7 for brachytherapy, while 51 posted a price for prostatectomy. By May 2022 about 64 percent of 6,013 US hospitals had disclosed at least one prostate-service price, and self-pay prices were higher than negotiated rates for every service except biopsy. The practical consequence: assume a posted radiation price is a list price unless the file says otherwise, and treat Medicare's schedule as the only nationally comparable anchor.

2026 Medicare rates per session, by delivery type

Medicare rewrote the radiation delivery codes for 2026. The separate IMRT delivery codes 77385 and 77386 were deleted on January 1, 2026, and IMRT now bills through the revised codes 77402, 77407, and 77412 according to complexity. The technical part of image guidance is bundled into the delivery payment, and hospital outpatient payment rates rose 2.6 percent overall. That means a 2025 bill and a 2026 bill for the same treatment will not line up code for code.

The table combines two 2026 sources. The payment-group amounts are the hospital's facility payment for one session under the Hospital Outpatient Prospective Payment System. The Procedure Price Lookup amounts add the physician's fee and show the patient's share as Medicare calculates it for a hospital outpatient department. Where the lookup tool does not publish a combined figure, only the facility payment is shown and the physician fee is billed on top.

Freestanding radiation centers that are not part of a hospital are paid under the Medicare Physician Fee Schedule instead, and off-campus hospital departments that opened after November 2015 are generally paid at the physician-schedule technical rate. Those amounts differ from the hospital figures below, so ask which schedule the facility bills under before you multiply.

Worked course math at 2026 Medicare rates

Multiply the per-session rate by the number of sessions and you have the largest line on the bill. The table does that for the five schedules a prostate patient is most likely to be quoted. The facility column uses the 2026 payment-group rate for the delivery code; the combined column uses the Procedure Price Lookup average of $1,007 per Level 3 session, which includes the physician fee. SBRT has no combined figure in the lookup tool, so only its facility math is shown.

None of these totals include the one-time items: the planning simulation, dosimetry and treatment planning, immobilization devices, the professional fee for image guidance, or the weekly physician treatment-management visits. They also exclude anything ordered alongside radiation, such as hormone-therapy injections or a PSMA PET scan, which carry their own codes and their own coinsurance.

Hospital outpatient department versus freestanding center

The same session is paid under different Medicare schedules depending on the building. A hospital outpatient department bills under the Hospital Outpatient Prospective Payment System and the patient owes a copayment for each service, which by law cannot exceed the Part A inpatient deductible of $1,736 in 2026. A freestanding center bills under the Medicare Physician Fee Schedule, where the technical and professional payments are set separately and the patient owes 20 percent of each.

The Procedure Price Lookup shows the gap for one code. A Level 3 delivery session (77412) averages $1,007 in a hospital outpatient department with about $200 owed, and $680 in an ambulatory surgical center with about $135 owed. Off-campus hospital departments that were not billing before November 2015 are paid at the physician-schedule technical rate with a PN modifier, which lands them closer to the freestanding figure. Ask the billing office which of these three the facility is.

Does Medicare cover radiation for prostate cancer? Yes, Original Medicare Part B covers it

Yes, Original Medicare Part B covers outpatient radiation therapy for prostate cancer in a hospital outpatient department or a freestanding clinic, and Part A covers radiation given during a covered inpatient stay. Under Part B you pay the annual deductible of $283 in 2026 and then 20 percent of the Medicare-approved amount for each service; in a hospital outpatient department that 20 percent takes the form of a per-service copayment. Original Medicare generally does not require prior authorization for radiation.

The worked math for a 28-session Level 3 course: Medicare's combined approved amount is about $28,196, Medicare pays about $805 of each session, and the patient owes about $200 per session, or roughly $5,600 across the course, plus the $283 deductible if it has not already been met that year. With Medigap Plan G the patient's share of that course is the $283 deductible; Plan F also pays the deductible but is closed to people who became eligible for Medicare after January 1, 2020. Plans K and L pay 50 and 75 percent of the coinsurance, and the high-deductible versions of F and G pay nothing until you have spent $2,950 in 2026.

A Medicare Advantage plan replaces this arithmetic with its own copays, its own network, and usually a prior-authorization step. Under the federal prior-authorization rule that took effect for 2026, a Medicare Advantage plan must answer a standard request within 7 calendar days, an expedited request within 72 hours, and must state the specific reason for any denial. Ask the radiation oncology office to confirm the authorization number before the planning scan.

Commercial insurance: the same session at a different price

Employer and marketplace plans do not use Medicare's schedule. They pay a negotiated rate that in the NCI-center analysis typically ran 100 to 400 percent of Medicare, and what the patient owes depends on the plan's deductible, coinsurance percentage, and out-of-pocket maximum rather than on a fixed 20 percent. Because a radiation course spans weeks, it often crosses the deductible early and then runs at the coinsurance rate until the out-of-pocket maximum stops the meter.

Commercial claims data show the scale. In an analysis of MarketScan employer-plan claims from 2008 to 2015, expressed in 2015 dollars, a course of IMRT cost the payer $59,012 with $1,714 out of pocket for the patient, proton therapy cost $115,501 with $2,269 out of pocket, and in a separate matched comparison SBRT cost $49,504 against $57,244 for IMRT with $1,015 versus $1,560 out of pocket. The patient's own share was a small fraction of the payer's cost in every pairing because the out-of-pocket maximum did most of the work.

Two practical checks: confirm the facility and the radiation oncologist are both in network, since the professional and facility bills can carry different network status, and confirm the plan's prior-authorization decision in writing before simulation. Commercial plans commonly require authorization for radiation and can specify the technique they will pay for.

Without insurance: the Good Faith Estimate you are owed

If you have no insurance, or you choose not to use it, federal law requires the radiation facility to give you a written Good Faith Estimate before treatment. The estimate must list the expected charges for the main service and for every item and service reasonably expected to go with it, each with its billing code, the provider or facility that will bill it, and its price. For radiation that means the simulation, planning, devices, each delivery session, image guidance, and the physician's management visits, not just one session.

Timing is set by rule. If the course is scheduled at least 3 business days out, the estimate is due within 1 business day of scheduling; if it is scheduled 10 or more business days out, or you simply ask for one, it is due within 3 business days. Keep the estimate. If the final bill comes in $400 or more above it, you can open the federal patient-provider dispute process. The estimate rule does not apply to people using Medicare or Medicare Advantage, whose amounts are set by the schedules above.

Two more levers exist before you accept a list price. Hospitals must post a machine-readable file of their standard charges and a shoppable-services display, so the negotiated rates other payers receive are public, and the May 2022 disclosure analysis found self-pay prices above those negotiated rates for every prostate service except biopsy. Ask for a self-pay price at or below the lowest negotiated rate in that file, and ask for the hospital's financial-assistance application in the same conversation.

Billing questions to settle before the planning scan

Radiation billing is decided at the simulation appointment, not on the first treatment day, because the schedule, technique, and facility are fixed there. The questions below are administrative and can be answered by the radiation oncology office, the billing department, or the insurer without a clinical opinion. Ask them before the simulation is billed.

What this page does not decide

This is a billing explainer. It does not compare radiation techniques or schedules on outcomes or side effects, and it does not say which schedule a given patient should receive. Those are clinical decisions that belong to the radiation oncologist and, where surgery is also on the table, to the urologist, and they are covered on the radiation therapy guide rather than here.

Every dollar figure above is national and dated. Medicare rates are adjusted for local wages, commercial rates are private to each contract, and list prices change whenever a hospital updates its file. Use the numbers to recognize which price type you are looking at and to check an estimate against a schedule, then confirm the local figure with the facility that will bill you.