Diagnostic mammogram, both breasts in Williston, ND
In Williston, ND, 1 hospital lists a cash price for Diagnostic mammogram, both breasts (both sides): from $102.66 to $470.38, with a median of $286.52.
Cash prices at 1 facility for code 77066, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Williston, ND.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Mercy Medical Center both sides lowest Williston, ND DIAGNOSTIC DIGITAL BI PF | $102.66 | $177.00 | 42% | Feb 28, 2026 source file |
| Mercy Medical Center both sides Williston, ND DIAGNOSTIC DIGITAL BI | $470.38 | $811.00 | 42% | Feb 28, 2026 source file |
Both sides : lowest $102.66, median $286.52, highest $470.38 — a 4.6× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $286.52. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
What it is
A diagnostic mammogram of both breasts is an X-ray exam done to look into symptoms or to follow up on something seen on an earlier mammogram. It uses more targeted views than a routine screening exam.
What the price covers
The hospital price usually covers the imaging of both breasts, including computer-aided detection when used. The radiologist's reading is often billed separately, and 3D mammography or a breast ultrasound is billed under other codes.