Endometrial biopsy cost in Vallejo, CA — inpatient
In Vallejo, CA, 3 hospitals list a cash price for endometrial biopsy (uterine lining sample) without dilating the cervix as an inpatient: from $236.26 to $548.80, with a median of $548.80. The lowest listed price is at NorthBay Medical Center — $312.54 less than the median here. Across California, the median is $546.00 at 73 hospitals.
Cash prices at 3 facilities across 3 cities for code 58100, as an inpatient (admitted to hospital) . 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 Vallejo, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| NorthBay Medical Center lowest Fairfield, CA · (707) 646-5000 Endometrial Biopsy | $236.26 | $236.26 | — | — | Apr 1, 2026 source file |
| NorthBay Medical Center lowest Fairfield, CA · (707) 646-5000 Endometrial Biopsy | $236.26 | $236.26 | — | — | Apr 1, 2026 source file |
| Kaiser Foundation Hospital & Rehab Center - Vallejo Vallejo, CA · (707) 651-1000 ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX | $548.80 | $980.00 | $243.00–$761.00 | 44% | — source file |
| Kaiser Foundation Hospital - Vacaville Vacaville, CA · (707) 624-4000 ENDOMETRIAL BX W/WO ENDOCERVIX BX W/O DILAT SPX | $548.80 | $980.00 | $243.00–$761.00 | 44% | — source file |
Inpatient: lowest $236.26, median $548.80, highest $548.80 — a 2.3× difference within the same market.
As an outpatient, the same code is billed by 3 facilities here, median $548.80 — that is the price to compare if you are not being admitted.
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
An endometrial biopsy takes a small sample of the uterine lining with a thin tube passed through the cervix, without stretching the cervix open. It is used to investigate abnormal bleeding, such as bleeding after menopause.
What the price covers
The price covers taking the sample. The pathologist's exam and the office visit are usually billed separately.