GGT test cost in Milwaukee, WI — inpatient
In Milwaukee-Waukesha, WI, 12 hospitals list a cash price for gamma-glutamyl transferase (GGT) blood test as an inpatient: from $36.04 to $99.83, with a median of $75.00. The lowest listed price is at Ascension Columbia St. Mary's Hospital - Milwaukee Campus and 1 other hospital — $38.96 less than the median here. Across Wisconsin, the median is $53.30 at 96 hospitals.
Cash prices at 12 facilities across 9 cities for code 82977, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 21, 2025 and Mar 23, 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 Milwaukee-Waukesha, WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Ascension Columbia St. Mary's Hospital - Milwaukee Campus lowest Milwaukee, WI · (414) 585-1374 HC ASSAY OF GGT File of Jan 1, 2026 · source file | $36.04 | $68.00 | $7.56–$32.86 | 47% |
| Ascension Columbia St. Mary's Hospital - Ozaukee Campus lowest Mequon, WI HC ASSAY OF GGT File of Jan 1, 2026 · source file | $36.04 | $68.00 | $7.56–$32.86 | 47% |
| Orthopaedic Hospital of Wisconsin Glendale, WI GAMMA GLUTAMYLTRANSF(GGT)SERUM File of Jan 1, 2026 · source file | $37.63 | $71.00 | $6.98–$17.57 | 47% |
| Aurora West Allis Medical Center West Allis, WI · (414) 328-6000 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora St. Luke's South Shore of Aurora Health Care Metro Cudahy, WI · (414) 649-6000 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora Medical Center Summit Summit, WI · (262) 434-1600 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora St Lukes Medical Center of Aurora Health Care Metro Milwaukee, WI · (414) 649-6000 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora Medical Center Kenosha Kenosha, WI · (262) 948-5600 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora St Lukes Medical Center Milwaukee, WI · (414) 649-6000 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora Medical Center Washington County Hartford, WI · (262) 673-2300 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Aurora Medical Center Grafton Grafton, WI · (262) 329-1000 GGT File of Nov 21, 2025 · source file | $75.00 | $150.00 | $90.00–$127.50 | 50% |
| Children's Hospital of Wisconsin Milwaukee, WI · (414) 266-3954 HBC GGT GAMMA GLUTAMYLTRANSFERASE+1 more line at this price File of Mar 23, 2026 · source file | $99.83 | $181.50 | $127.05–$172.43 | 45% |
Inpatient: lowest $36.04, median $75.00, highest $99.83 — a 2.8× difference within the same market.
As an outpatient, the same code is billed by 16 facilities here, median $75.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 9 of 12 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 9 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
A GGT test measures a liver enzyme that rises with bile duct problems and heavy alcohol use. It helps tell whether a high alkaline phosphatase comes from the liver or bone.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.