Diagnostic mammogram, both breasts in Santa Rosa-Petaluma, CA
In Santa Rosa-Petaluma, CA, 3 hospitals list a cash price for Diagnostic mammogram, both breasts: from $505.92 to $1,454.01, with a median of $612.00. The lowest listed price is at NorCal HealthConnect LLC.
Cash prices at 4 facilities across 3 cities 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 Apr 1, 2026 and Apr 1, 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 Santa Rosa-Petaluma, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| NorCal HealthConnect LLC lowest Petaluma, CA HC MAMMO DIAG BIL W CAD | $505.92 | $992.00 | 49% | Apr 1, 2026 source file |
| NorCal HealthConnect LLC Healdsburg, CA HC MAMMO DIAG BIL W CAD | $539.58 | $1,058.00 | 49% | Apr 1, 2026 source file |
| St Joseph Health Northern California LLC Santa Rosa, CA HC MAMMO DIAG BIL W CAD | $684.42 | $1,342.00 | 49% | Apr 1, 2026 source file |
| NorCal HealthConnect LLC Petaluma, CA HC MAMMO DIAG BIL W CAD | $1,454.01 | $2,851.00 | 49% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Santa Rosa both sides Santa Rosa, CA DIAGNOSTIC MAMMOGRAPHY COMPUTER-AIDED DETCJ BI | $504.00 | $900.00 | 44% | — source file |
Both sides : lowest $504.00, median $504.00, highest $504.00.
Outpatient: lowest $505.92, median $612.00, highest $1,454.01 — a 2.9× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $504.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
As an inpatient, the same code is billed by 3 facilities here, median $684.42. 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.