Endometrial biopsy cost in Riverside, CA
In Riverside-San Bernardino-Ontario, CA, 11 hospitals list a cash price for endometrial biopsy (uterine lining sample) without dilating the cervix: from $88.40 to $987.00, with a median of $468.36. The lowest listed price is at Mountains Community Hospital — $379.96 less than the median here. Across California, the median is $546.00 at 103 hospitals.
- The median here, $468.36, is 54% above the US median of $303.68.
- That is 2.3× Medicare's 2026 national rate for the same service ($206.55).
- Riverside, CA has the lowest median of 3 metro areas in California with at least 10 hospitals pricing this code.
- 2 of 11 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 11 facilities across 9 cities for code 58100, as an outpatient — the setting a self-pay patient normally buys. Collected Oct 29, 2026; the hospital files themselves were last updated between Jan 14, 2026 and Sep 2, 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 Riverside-San Bernardino-Ontario, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Mountains Community Hospital lowest Lake Arrowhead, CA · (909) 336-3651 BIOPSY OF UTERUS LINING File of Jan 14, 2026 · source file | $88.40 | $221.00 | $99.45–$187.85 | 60% |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC ENDOMETRIAL BIOPSY File of Sep 2, 2026 · source file | $180.90 | $402.00 | $72.76–$9,616.00 | 55% |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC ED ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX CDM File of Apr 1, 2026 · source file | $259.68 | $541.00 | — | 52% |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC ENDOMETRIAL BIOPSY File of Sep 2, 2026 · source file | $300.60 | $668.00 | $77.98–$5,641.00 | 55% |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC ENDOMETRIAL BIOPSY File of Sep 2, 2026 · source file | $407.25 | $905.00 | $70.59–$27,467.00 | 55% |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Endometrial Biopsy+1 more line at this price File of Mar 30, 2026 · source file | $468.36 | $468.36 | $93.00–$468.36 | — |
| Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX File of Apr 1, 2026 · source file | $546.00 | $1,050.00 | $200.00–$594.00 | 48% |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX File of Apr 1, 2026 · source file | $546.00 | $1,050.00 | $200.00–$594.00 | 48% |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX File of Apr 1, 2026 · source file | $546.00 | $1,050.00 | $200.00–$594.00 | 48% |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX File of Apr 1, 2026 · source file | $546.00 | $1,050.00 | $200.00–$594.00 | 48% |
| San Bernardino County Colton, CA · (909) 580-1000 HC BIOPSY OF UTERUS LINING File of Feb 25, 2026 · source file | $987.00 | $987.00 | $93.00–$715.58 | — |
Outpatient: lowest $88.40, median $468.36, highest $987.00 — a 11.2× difference within the same market.
As an inpatient, the same code is billed by 10 facilities here, median $507.18. 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 8 of 10 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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 endometrial biopsy is, what the price covers and why prices differ: Endometrial biopsy explained.