Lab tests CPT 84146 Inpatient — admitted to hospital

Prolactin test cost in Madison, WI — inpatient

In Madison, WI, 2 hospitals list a cash price for prolactin blood test as an inpatient: from $120.90 to $226.80, with a median of $173.85. The lowest listed price is at Aspirus Divine Savior Hospital — $52.95 less than the median here. Across Wisconsin, the median is $120.90 at 81 hospitals.

Cash prices at 2 facilities across 2 cities for code 84146, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 28, 2026 and Apr 1, 2026.

Lowest$120.90Aspirus Divine Savior Hospital
Median$173.85half pay less
Highest$226.80in this market
Difference1.9×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 Madison, WI.

median
Lowest $120.90Highest $229.60

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Aspirus Divine Savior Hospital lowest Portage, WI · (608) 742-4131 ASSAY OF PROLACTIN $120.90 $186.00 — 35% Apr 1, 2026
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Aspirus Divine Savior Hospital lowest Portage, WI · (608) 742-4131 Fac Assay of Prolactin $120.90 $186.00 — 35% Apr 1, 2026
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UnityPoint Health - Meriter Madison, WI · (608) 417-6210 HC PROLACTIN ASSAY $226.80 $283.49 $65.20–$269.32 20% Jan 28, 2026
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UnityPoint Health - Meriter Madison, WI · (608) 417-6210 ASSAY OF PROLACTIN $229.60 $287.00 $11.63–$272.65 20% Jan 28, 2026
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Inpatient: lowest $120.90, median $173.85, highest $226.80 — a 1.9× difference within the same market.

As an outpatient, the same code is billed by 2 facilities here, median $173.85 — that is the price to compare if you are not being admitted.

Cash or insurance?

At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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

Prolactin is a pituitary hormone that drives milk production. The test is ordered for irregular or absent periods, nipple discharge, infertility, low sex drive and suspected pituitary tumors.

What the price covers

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