Lab tests CPT 82088 Inpatient — admitted to hospital

Aldosterone test cost in San Francisco, CA — inpatient

In San Francisco-Oakland-Fremont, CA, 13 hospitals list a cash price for aldosterone blood test as an inpatient: from $12.61 to $70.56, with a median of $70.56. The lowest listed price is at St. Rose Hospital — $57.95 less than the median here. Across California, the median is $40.00 at 126 hospitals.

Cash prices at 13 facilities across 13 cities for code 82088, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 23, 2026 and Apr 1, 2026.

Lowest$12.61St. Rose Hospital
Median$70.56half of hospitals charge less
Highest$70.56in this market
Difference5.6×highest vs lowest

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 Francisco-Oakland-Fremont, CA.

median
Lowest $12.61Highest $70.56

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
St. Rose Hospital lowest Hayward, CA · (510) 782-6200 LC -ALDOSTERONE File of Feb 23, 2026 · source file $12.61 $42.03 $29.42–$32.36 70%
St. Rose Hospital Hayward, CA · (510) 782-6200 LC-ALDOSTERONRENINACTIVITYRATI File of Feb 23, 2026 · source file $14.72 $49.06 $34.34–$37.78 70%
Mills-Peninsula Medical Center Burlingame, CA · (650) 696-5400 HCHG ALDOSTERONE File of Apr 1, 2026 · source file $70.00 $70.00 — —
Mills Health Center San Mateo, CA · (650) 696-5400 HCHG ALDOSTERONE File of Apr 1, 2026 · source file $70.00 $70.00 — —
Kaiser Foundation Hospital - San Rafael San Rafael, CA · (415) 444-2000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - San Leandro San Leandro, CA · (510) 454-1000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - Walnut Creek Walnut Creek, CA · (925) 295-4000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - Antioch Antioch, CA · (925) 813-6500 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - San Francisco San Francisco, CA · (415) 833-2646 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - South San Francisco South San Francisco, CA · (650) 742-3200 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - Redwood City Redwood City, CA · (650) 299-2000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - Fremont Fremont, CA · (510) 784-4000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA · (510) 752-1000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Kaiser Fnd Hospital - Richmond Campus Richmond, CA · (510) 752-1000 ASSAY OF ALDOSTERONE source file $70.56 $126.00 $38.00–$120.00 44%
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More

Inpatient: lowest $12.61, median $70.56, highest $70.56 — a 5.6× difference within the same market.

As an outpatient, the same code is billed by 14 facilities here, median $70.56 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 11 of 11 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 it is

An aldosterone test measures an adrenal hormone that controls salt and blood pressure. It is ordered with renin for high blood pressure that is hard to control or low potassium.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

3 rows held back from this comparison

They are priced below $1 or below a tenth of the national median for code 82088 ($119.60). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

HospitalCash priceFile
Sequoia Hospital Redwood City, CARL-A-ALDOST 70015 $4.37 file
St. Rose Hospital Hayward, CAASSAY OF ALDOSTERONE $7.36 file
Stanford Health Care Tri-Valley Pleasanton, CAHC 6956 11070r Aldosterone $9.00 file
File Link to the hospital's own price file.