Phosphorus test cost in Portland, OR — inpatient
In Portland-Vancouver-Hillsboro, OR-WA, 12 hospitals list a cash price for phosphorus (phosphate) blood test as an inpatient: from $19.55 to $39.65, with a median of $22.50. The lowest listed price is at Kaiser Foundation Hospital - Westside and 1 other hospital — $2.95 less than the median here. Across Oregon, the median is $29.25 at 47 hospitals.
Cash prices at 12 facilities across 9 cities for code 84100, 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 Portland-Vancouver-Hillsboro, OR-WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Kaiser Foundation Hospital - Westside lowest Hillsboro, OR · (971) 310-0100 ASSAY OF PHOSPHORUS INORGANIC source file | $19.55 | $23.00 | $6.00–$18.96 | 15% |
| Kaiser Sunnyside Medical Center lowest Clackamas, OR · (503) 652-2880 ASSAY OF PHOSPHORUS INORGANIC source file | $19.55 | $23.00 | $6.00–$18.96 | 15% |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $22.50 | $30.00 | — | 25% |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $22.50 | $30.00 | — | 25% |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $22.50 | $30.00 | — | 25% |
| Providence St Vincent Medical Center Portland, OR · (503) 216-1234 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $22.50 | $30.00 | — | 25% |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $22.50 | $30.00 | — | 25% |
| Legacy Mount Hood Medical Center Gresham, OR · (503) 674-1122 HC PHOSPHORUS File of Apr 1, 2026 · source file | $39.65 | $61.00 | — | 35% |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC PHOSPHORUS+1 more line at this price File of Apr 1, 2026 · source file | $39.65 | $61.00 | — | 35% |
| Legacy Meridian Park Medical Center Tualatin, OR · (503) 692-1212 HC PHOSPHORUS File of Apr 1, 2026 · source file | $39.65 | $61.00 | — | 35% |
| Legacy Salmon Creek Medical Center Vancouver, WA · (360) 487-1000 HC PHOSPHORUS File of Apr 1, 2026 · source file | $39.65 | $61.00 | — | 35% |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC PHOSPHORUS File of Apr 1, 2026 · source file | $39.65 | $61.00 | — | 35% |
Inpatient: lowest $19.55, median $22.50, highest $39.65 — a 2.0× difference within the same market.
As an outpatient, the same code is billed by 16 facilities here, median $22.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 0 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
A phosphorus test measures phosphate in the blood. It is used with calcium for kidney disease, bone disease and parathyroid problems.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.