Alkaline phosphatase test cost in Seattle, WA — inpatient
In Seattle-Tacoma-Bellevue, WA, 19 hospitals list a cash price for alkaline phosphatase (ALP) blood test as an inpatient: from $9.11 to $100.83, with a median of $37.73. The lowest listed price is at Overlake Medical Center & Clinics — $28.62 less than the median here. Across Washington, the median is $37.92 at 57 hospitals.
Cash prices at 19 facilities across 14 cities for code 84075, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 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 Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Overlake Medical Center & Clinics lowest Bellevue, WA · (425) 688-5000 Hc Assay Alkal Phosphatase Lab741 File of Apr 1, 2026 · source file | $9.11 | $18.22 | — | 50% |
| Saint Clare Hospital Lakewood, WA · (253) 588-1711 HC ALKALINE PHOSPHATASE SERUM File of Feb 28, 2026 · source file | $17.15 | $59.48 | $42.83–$44.61 | 71% |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC ALKALINE PHOSPHATASE SERUM File of Feb 28, 2026 · source file | $18.10 | $59.48 | $42.83–$44.61 | 70% |
| Highline Medical Center Burien, WA · (206) 431-5237 HC ALKALINE PHOSPHATASE SERUM File of Feb 28, 2026 · source file | $18.17 | $59.48 | $25.58–$53.54 | 69% |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC ALKALINE PHOSPHATASE SERUM File of Feb 28, 2026 · source file | $18.67 | $59.48 | $42.83–$44.61 | 69% |
| Valley Medical Center Renton, WA · (425) 228-3450 Assay of Phosphatase Alkaline source file | $18.90 | $27.00 | — | 30% |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC ALKALINE PHOSPHATASE SERUM File of Feb 28, 2026 · source file | $19.70 | $59.48 | $42.83–$44.61 | 67% |
| Saint Clare Hospital Lakewood, WA · (253) 588-1711 HC ALK PHOS ISO AKP File of Feb 28, 2026 · source file | $20.75 | $71.97 | $51.82–$53.98 | 71% |
| St Elizabeth Hospital Enumclaw, WA · (360) 825-2505 HC ALKALINE PHOSPHATASE SERUM File of Feb 28, 2026 · source file | $21.02 | $59.48 | $16.66–$53.54 | 65% |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC ALK PHOS ISO AKP File of Feb 28, 2026 · source file | $21.89 | $71.97 | $51.82–$53.98 | 70% |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 PHOSPHATASE, ALKALINE source file | $21.93 | $43.00 | $27.54–$34.40 | 49% |
| Highline Medical Center Burien, WA · (206) 431-5237 HC ALK PHOS ISO AKP File of Feb 28, 2026 · source file | $21.98 | $71.97 | $30.95–$64.78 | 69% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Assay Alkal Phosphatase File of Apr 1, 2026 · source file | $22.00 | $44.00 | — | 50% |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC ALK PHOS ISO AKP File of Feb 28, 2026 · source file | $22.59 | $71.97 | $51.82–$53.98 | 69% |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC ALK PHOS ISO AKP File of Feb 28, 2026 · source file | $23.84 | $71.97 | $51.82–$53.98 | 67% |
| St Elizabeth Hospital Enumclaw, WA · (360) 825-2505 HC ALK PHOS ISO AKP File of Feb 28, 2026 · source file | $25.44 | $71.97 | $20.16–$64.78 | 65% |
| Snoqualmie Valley Hospital Snoqualmie, WA · (425) 831-2300 Facility Fee HC ASSAY ALKAL PHOSPHATASE+1 more line at this price source file | $37.73 | $65.05 | $5.08–$59.85 | 42% |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC ASSAY OF PHOSPHATASE ALKALINE LAB+1 more line at this price File of Apr 1, 2026 · source file | $37.92 | $79.00 | — | 52% |
| Swedish Medical Center Seattle, WA · (206) 386-6000 HC ALKALINE PHOS+1 more line at this price File of Apr 1, 2026 · source file | $37.92 | $79.00 | — | 52% |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC ALKALINE PHOS+1 more line at this price File of Apr 1, 2026 · source file | $37.92 | $79.00 | — | 52% |
| Swedish Edmonds Edmonds, WA · (425) 640-4000 HC ALKALINE PHOS+1 more line at this price File of Apr 1, 2026 · source file | $37.92 | $79.00 | — | 52% |
| Kaiser Permanente Central Hospital Seattle, WA · (206) 326-3000 PHOSPATASE ALKALINE File of Apr 1, 2026 · source file | $40.80 | $51.00 | $4.00–$15.00 | 20% |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC ALKALINE PHOS+2 more lines at this price File of Apr 1, 2026 · source file | $41.08 | $79.00 | — | 48% |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Esrd Assay Alkaline Phosphatase source file | $42.90 | $42.90 | $10.81–$41.18 | — |
| Cascade Valley Hospital Arlington, WA · (360) 435-2133 HC ALK. PHOSPHATASE source file | $45.60 | $57.00 | $4.85–$51.30 | 20% |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Alkaline Phosphatase, Body Fluid source file | $59.00 | $59.00 | $14.87–$56.64 | — |
| Franciscan Specialty Care Tacoma, WA ALKALINE PHOSPHATASE, TOTAL File of Mar 16, 2026 · source file | $100.83 | $100.83 | $100.83 | — |
Inpatient: lowest $9.11, median $37.73, highest $100.83 — a 11.1× difference within the same market.
As an outpatient, the same code is billed by 18 facilities here, median $29.83 — 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 6 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 alkaline phosphatase test measures an enzyme from the liver, bile ducts and bones. High levels suggest a blocked bile duct, liver disease or bone disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.