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Gamma Knife Radiosurgery, Complete Treatment

South Dakota rates for HCPCS 77371

A highly precise, single-session radiation treatment for a lesion in the brain, delivered using a specialized device that focuses many individual beams of radiation from a fixed radiation source onto the target. The entire course of treatment for the lesion is completed in this one session, unlike traditional radiation therapy that is spread across many daily visits. It is commonly used for brain tumors, some vascular abnormalities, and certain other brain lesions.

Rates data updated July 2026.

How much does Gamma Knife Radiosurgery, Complete Treatment cost?

$2,818

Typical negotiated rate. In South Dakota, July 2026.

Insurers have agreed to pay about $2,818 for this service. The price depends on where it is billed: about $2,818 from a physician practice, and about $1,950 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 7 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$2,818$2,399 to $3,548
FacilityA hospital or hospital-owned outpatient department$1,950$1,445 to $8,318

How much rates vary

Facilitymedian $1,950 · 10th to 90th $603 to $8,318Professionalmedian $2,818 · 10th to 90th $1,413 to $3,548
$1K$2K$5K$10Kfacility $1,950professional $2,818

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$8,317.64
Median
$8,317.64
Typical High
$8,317.64
Avera
Setting
Facility
Modifier
Global
Typical Low
$602.56
Median
$1,122.02
Typical High
$1,949.84
Cigna
Setting
Professional
Modifier
Global
Typical Low
$2,570.40
Median
$2,818.38
Typical High
$3,548.13
Medica
Setting
Facility
Modifier
Global
Typical Low
$1,445.44
Median
$1,698.24
Typical High
$2,818.38
Medica
Setting
Professional
Modifier
Global
Typical Low
$1,737.80
Median
$2,630.27
Typical High
$4,265.80
Sanford Health Plan
Setting
Professional
Modifier
Global
Typical Low
$1,380.38
Median
$1,380.38
Typical High
$1,380.38
United
Setting
Facility
Modifier
Global
Typical Low
$15,135.61
Median
$15,135.61
Typical High
$15,135.61
United
Setting
Professional
Modifier
Global
Typical Low
$1,071.52
Median
$2,398.83
Typical High
$4,073.80
Wellmark
Setting
Professional
Modifier
Global
Typical Low
$1,819.70
Median
$2,089.30
Typical High
$2,089.30

Where South Dakota sits

The same service costs 36.3 times more in West Virginia than in Kentucky. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

South Dakota· 23rd of 51

$2,818

WV $41,687KY $1,148

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.