Kidney ultrasound cost in San Antonio, TX
In San Antonio-New Braunfels, TX, 2 hospitals list a cash price for complete ultrasound of the back of the abdomen, such as both kidneys: from $156.09 to $212.50, with a median of $184.30. The lowest listed price is at Santa Rosa Hospital - Westover Hills — $28.21 less than the median here. Across Texas, the median is $691.73 at 97 hospitals.
Cash prices at 2 facilities for code 76770, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 24, 2026; the hospital files themselves were last updated between Oct 14, 2025 and Jan 13, 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 San Antonio-New Braunfels, TX.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Santa Rosa Hospital - Westover Hills lowest San Antonio, TX HC 76770 US RETROPERITONEAL R-T W/IMAGE COMPL | $156.09 | $473.00 | $49.93–$660.00 | 67% | Jan 13, 2026 source file |
| University Health System San Antonio, TX · (210) 358-2000 HC US,RETROPERIT, B-SCAN/REAL TIME,COMPLETE - US R | $212.50 | $850.00 | $99.85–$2,125.00 | 75% | Oct 14, 2025 source file |
| University Health System San Antonio, TX · (210) 358-2000 HC US,RETROPERIT, B-SCAN/REAL TIME,COMPLETE - US A | $212.50 | $850.00 | $99.85–$2,125.00 | 75% | Oct 14, 2025 source file |
Outpatient: lowest $156.09, median $184.30, highest $212.50 — a 1.4× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $212.50. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This ultrasound looks at organs at the back of the abdomen, most often both kidneys and the bladder, and sometimes the aorta. It is ordered for kidney stones, kidney infection, abnormal kidney tests or blood in the urine.
What the price covers
The hospital price usually covers the complete exam. The radiologist's reading is often billed separately.