Rheumatoid factor test cost in Naples, FL — inpatient
In Naples-Marco Island, FL, 2 hospitals list a cash price for rheumatoid factor (RF) test as an inpatient: from $5.04 to $59.20, with a median of $32.12. The lowest listed price is at Naples HMA — $27.08 less than the median here. Across Florida, the median is $27.00 at 141 hospitals.
Cash prices at 2 facilities for code 86431, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Jul 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 Naples-Marco Island, FL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Naples HMA lowest Naples, FL Q4418 RHEUM FACT ITA | $5.04 | $21.00 | $5.04–$13.94 | 76% | Apr 1, 2026 source file |
| Naples HMA lowest Naples, FL Q4418 RHEUM FACT ITA | $5.04 | $21.00 | $5.04–$13.94 | 76% | Apr 1, 2026 source file |
| Naples HMA lowest Naples, FL Q4418 RHEUM FACT ITA | $5.04 | $21.00 | $5.04–$13.94 | 76% | Apr 1, 2026 source file |
| Naples HMA Naples, FL Q37491 RHEUMATOID FA | $6.35 | $26.45 | $6.35–$17.56 | 76% | Apr 1, 2026 source file |
| Naples HMA Naples, FL Q37491 RHEUMATOID FA | $6.35 | $26.45 | $6.35–$17.56 | 76% | Apr 1, 2026 source file |
| Naples HMA Naples, FL Q37491 RHEUMATOID FA | $6.35 | $26.45 | $6.35–$17.56 | 76% | Apr 1, 2026 source file |
| Naples HMA Naples, FL Q91472 RA FACT QT | $10.64 | $44.32 | $10.64–$29.43 | 76% | Apr 1, 2026 source file |
| Naples HMA Naples, FL Q91472 RA FACT QT | $10.64 | $44.32 | $10.64–$29.43 | 76% | Apr 1, 2026 source file |
| Naples HMA Naples, FL Q91472 RA FACT QT | $10.64 | $44.32 | $10.64–$29.43 | 76% | Apr 1, 2026 source file |
| Naples Community Hospital Naples, FL · (239) 624-5000 HC RHEUMATOID FACTOR QUANT - RHEUMATOID FACTOR | $59.20 | $148.00 | — | 60% | Jul 1, 2026 source file |
| Naples Community Hospital Naples, FL · (239) 624-5000 HC SO RHEUMATOID FACTOR QUANTITATIVE | $59.20 | $148.00 | — | 60% | Jul 1, 2026 source file |
Inpatient: lowest $5.04, median $32.12, highest $59.20 — a 11.7× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $31.81 — 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
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.