Diagnostic mammogram, both breasts in Ontario, CA — inpatient
In Ontario, CA, 1 hospital lists a cash price for Diagnostic mammogram, both breasts (both sides) as an inpatient: from $421.72 to $421.72, with a median of $421.72.
Cash prices at 1 facility for code 77066, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Kaiser Foundation Hospital - Ontario both sides Ontario, CA DIAGNOSTIC MAMMOGRAPHY COMPUTER-AIDED DETCJ BI | $421.72 | $811.00 | 48% | — source file |
Both sides : lowest $421.72, median $421.72, highest $421.72.
As an outpatient, the same code is billed by 1 facility here, median $421.72 — that is the price to compare if you are not being admitted.
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.