Rheumatoid factor test cost in Portland, OR
In Portland-Vancouver-Hillsboro, OR-WA, 15 hospitals list a cash price for rheumatoid factor (RF) test: from $3.89 to $91.65, with a median of $56.90. The lowest listed price is at Legacy Emanuel Medical Center and 4 other hospitals — $53.01 less than the median here. Across Oregon, the median is $40.30 at 39 hospitals.
Cash prices at 15 facilities across 9 cities for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 23, 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 | File date |
|---|---|---|---|---|---|
| Legacy Emanuel Medical Center lowest Portland, OR · (503) 413-2200 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center lowest Tualatin, OR · (503) 692-1212 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center lowest Portland, OR · (503) 413-7682 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center lowest Vancouver, WA · (360) 487-1000 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center lowest Portland, OR · (503) 413-7682 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center lowest Gresham, OR · (503) 674-1122 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR · (503) 413-2200 HC ANA 86431 | $3.89 | $5.99 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR · (503) 674-1122 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR · (503) 692-1212 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA · (360) 487-1000 CHG RHEUMATOID FACTOR QUANTITATIVE | $4.01 | $6.17 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC ANA 86431 | $4.55 | $7.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA · (360) 487-1000 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR · (503) 692-1212 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR · (503) 674-1122 HC RHEUMATOID FACTOR QUANT | $11.86 | $18.24 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA · (360) 487-1000 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR · (503) 674-1122 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR · (503) 692-1212 HC BODY FLUID RHEUMATOID FACTOR | $21.78 | $33.50 | — | 35% | Apr 1, 2026 source file |
| Kaiser Sunnyside Medical Center Clackamas, OR · (503) 652-2880 RHEUMATOID FACTOR QUANTITATIVE | $22.95 | $27.00 | $7.00–$22.12 | 15% | — source file |
| Kaiser Foundation Hospital - Westside Hillsboro, OR · (971) 310-0100 RHEUMATOID FACTOR QUANTITATIVE | $22.95 | $27.00 | $7.00–$22.12 | 15% | — source file |
| Shriners Childrens - Portland Portland, OR · (541) 241-5090 RHEUMATOID FACTOR LEVEL | $56.90 | $56.90 | $4.54–$19.84 | — | — source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC BODY FLUID RHEUMATOID FACTOR | $61.75 | $95.00 | — | 35% | Apr 1, 2026 source file |
| Tuality Healthcare Hillsboro, OR · (503) 681-1111 Ra Factor-Body Fluid | $62.40 | $96.00 | $4.42–$96.00 | 35% | — source file |
| Oregon Health & Science University Portland, OR · (503) 494-9000 Ra Factor-Body Fluid | $62.40 | $96.00 | $4.54–$96.00 | 35% | Mar 23, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC RHEUMATOID FACTOR | $74.25 | $99.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC RHEUMATOID FACTOR | $74.25 | $99.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC RHEUMATOID FACTOR | $74.25 | $99.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC RHEUMATOID FACTOR | $74.25 | $99.00 | — | 25% | Apr 1, 2026 source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC RHEUMATOID FACTOR | $74.25 | $99.00 | — | 25% | Apr 1, 2026 source file |
| Oregon Health & Science University Portland, OR · (503) 494-9000 Rheumatoid Factor Quant | $83.85 | $129.00 | $4.54–$129.00 | 35% | Mar 23, 2026 source file |
| Tuality Healthcare Hillsboro, OR · (503) 681-1111 Rheumatoid Factor Quant | $83.85 | $129.00 | $4.42–$129.00 | 35% | — source file |
| PeaceHealth Southwest Medical Center Vancouver, WA · (360) 256-2000 RHEUMATOID FACTOR LEVEL | $91.65 | $141.00 | $2.27–$18.40 | 35% | — source file |
| PeaceHealth Southwest Medical Center Vancouver, WA · (360) 256-2000 RHEUMATOID FACTOR QUANT | $94.25 | $145.00 | $2.27–$18.40 | 35% | — source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC RHEUMATOID FACTOR QUANT | $113.10 | $174.00 | — | 35% | Apr 1, 2026 source file |
Outpatient: lowest $3.89, median $56.90, highest $91.65 — a 23.6× difference within the same market.
As an inpatient, the same code is billed by 11 facilities here, median $22.95. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 2 of 6 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
Rheumatoid factor is an antibody found in many people with rheumatoid arthritis. The test is part of the workup for joint pain and swelling.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
8 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 86431 ($38.07). 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.
| Legacy Good Samaritan Medical Center Portland, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Good Samaritan Medical Center Portland, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Emanuel Medical Center Portland, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Emanuel Medical Center Portland, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Emanuel Medical Center Portland, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Mount Hood Medical Center Gresham, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Meridian Park Medical Center Tualatin, ORHC RHEUMATOID FACTOR (RF) | $3.25 | file |
| Legacy Salmon Creek Medical Center Vancouver, WAHC RHEUMATOID FACTOR (RF) | $3.25 | file |