Skip to main content
PricedCare

Diagnostic mammogram (both breasts) in St. Louis, MO-IL costs $254 to $572. Here's every hospital's price.

16 hospitals in the St. Louis, MO-IL metro area publish a cash price for diagnostic mammogram (both breasts) (CPT 77066). We read their files every month so you don't have to.

Across the St. Louis, MO-IL metro area, 16 hospitals list a cash price for diagnostic mammogram (both breasts) (CPT 77066). The lowest is $254 at Ssm St Clare Health Center, the median is $358 and the highest is $572 at Hshs Holy Family Hospital INC. The most expensive hospital lists 2.2 times the cheapest for the same code.

The St. Louis, MO-IL median of $358 is 7% above the national median of $333 across 1377 US hospitals with a cash price for this code.

16 of these hospitals also publish the rates they negotiated with insurers, from $33 to $1,403. With insurance you pay a share of the negotiated rate, which is sometimes higher than the cash price; you may ask for the cash price instead.

The files behind these prices are dated between March 2026 and June 2026. 20 other hospitals in the metro area have no readable price for this code: some publish no file, some block automated reading, some leave the code out. They are listed below so you can call them.

$254
lowest cash price in St. Louis, MO-IL
Ssm St Clare Health Center · 16 mi
$103 below the median
$358
median cash price
16 hospitals
2.2×
highest ÷ lowest
same procedure, same metro
16/36
hospitals with a cash price
20 don't · see who

Sorted by cash price

Hospital facility fee only
1
Ssm St Clare Health Center

Fenton · 16 mi · File Apr 2026

$254
list $462 · lowest of 9 lines
2
Touchette Regional Hospital INC

Centreville · 17 mi · File Apr 2026

$268
list $433
3
Ssm Health Saint Louis University Hospital

Saint Louis · 10 mi · File Apr 2026

$319
list $580
4
Mercy Hospital Lincoln

Troy · 38 mi · File Jun 2026

$333
list $512
5
Ssm St Joseph Health Center

Saint Charles · 8 mi · File Apr 2026

$358
list $650 · lowest of 2 lines
6
Ssm Health St Mary's Hospital - St Louis

Saint Louis · 8 mi · File Apr 2026

$358
list $650 · lowest of 2 lines
7
Ssm Health Depaul Hospital St Louis

Bridgeton · 5 mi · File Apr 2026

$358
list $650
8
Ssm St Joseph Hospital West

Lake Saint Louis · 24 mi · File Apr 2026

$358
list $650 · lowest of 15 lines
9
Mercy Hospital St Louis

Saint Louis · 8 mi · File Jun 2026

$372
list $469 · lowest of 2 lines
10
Mercy Hospital Washington

Washington · 38 mi · File Jun 2026

$386
list $594
11
Mercy Hospital South

Saint Louis · 16 mi · File Jun 2026

$420
list $646 · lowest of 3 lines
12
Mercy Hospital Jefferson

Crystal City · 38 mi · File Jun 2026

$456
list $701
1

What's in the price

The hospital facility fee for CPT 77066. The doctor, anesthesia and lab work usually bill separately.

2

Cash vs. insured

Cash is what you pay without insurance. With insurance you pay a share of the negotiated rate, which can be higher than cash. You may ask for the cash price.

3

What to say on the phone

"I'd like the self-pay price for CPT 77066, in writing, and whether it covers facility, physician and anesthesia."

About diagnostic mammogram (both breasts)

CPT 77066 is a diagnostic mammogram of both breasts: extra views taken because of a symptom, a lump, or something seen on a screening mammogram. Unlike screening, it is not covered as free preventive care, and it is usually priced higher because a radiologist reviews the images while you wait and may add an ultrasound.

What the price covers

The hospital's price is the technical fee for the mammography unit, technologist and additional views. The radiologist's reading is billed separately. A breast ultrasound (76641 or 76642), often done in the same visit, is a separate code and charge.

Why prices vary

Diagnostic mammogram prices vary several times between hospitals in the same area. Breast centers attached to large systems tend to list the highest gross charges; community hospitals and outpatient imaging centers list lower. Cash prices are usually well below gross.

Questions to ask

  • What is the self-pay price for 77066, and does it include the radiologist reading?
  • Will an ultrasound be added, and what does it cost?
  • Does the hospital have a financial-assistance or breast-health program for uninsured patients?

Hospitals in St. Louis, MO-IL without a price for this procedure

Listed so you know who to call. The reason is what we found on their website.

Questions people ask