Diagnostic mammogram (both breasts) in St. Louis, MO-IL costs $268 to $1,116. Here's every hospital's price.
15 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, 15 hospitals list a cash price for diagnostic mammogram (both breasts) (CPT 77066). The lowest is $268 at Touchette Regional Hospital INC, the median is $386 and the highest is $1,116 at Mercy Hospital South. The most expensive hospital lists 4.2 times the cheapest for the same code.
The St. Louis, MO-IL median of $386 is 7% above the national median of $362 across 459 US hospitals with a cash price for this code.
16 of these hospitals also publish the rates they negotiated with insurers, from $33 to $1,116. 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.
Sorted by cash price
Hospital facility fee onlyCentreville · 17 mi · File Apr 2026
Saint Louis · 10 mi · File Apr 2026
Saint Charles · 8 mi · File Apr 2026
Fenton · 16 mi · File Apr 2026
Saint Louis · 8 mi · File Apr 2026
Bridgeton · 5 mi · File Apr 2026
Washington · 38 mi · File Jun 2026
Crystal City · 38 mi · File Jun 2026
Saint Louis · 8 mi · File Mar 2026
Alton · 15 mi · File Mar 2026
What's in the price
The hospital facility fee for CPT 77066. The doctor, anesthesia and lab work usually bill separately.
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.
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.
- Alton Memorial HospitalWebsite blocks automated reading
- Anderson HospitalFile could not be read
- Barnes Jewish HospitalWebsite blocks automated reading
- Barnes-Jewish St Peters HospitalWebsite blocks automated reading
- Barnes-Jewish West County HospitalWebsite blocks automated reading
- Carlinville Area HospitalNo website on record
- Christian Hospital NortheastWebsite blocks automated reading
- Community Hospital of StauntonNo website on record
- Gateway Regional Medical CenterWebsite blocks automated reading
- Jersey Community HospitalWebsite blocks automated reading
- Memorial HospitalWebsite blocks automated reading
- Missouri Baptist Medical CenterWebsite blocks automated reading
- Missouri Baptist Sullivan HospitalNo website on record
- Progress West HospitalWebsite blocks automated reading
- Ranken Jordan Pediatric Bridge Hospitalcode not in file
- Red Bud Regional HospitalNo website on record
- Shriners Hospitals for Childrencode not in file
- St Joseph's HospitalNo website on record
- St Louis Childrens HospitalWebsite blocks automated reading
- St Lukes HospitalNo price file found