Rheumatoid factor test cost in Fresno, CA
In Fresno, CA, 4 hospitals list a cash price for rheumatoid factor (RF) test: from $13.20 to $45.36, with a median of $16.80. The lowest listed price is at Fresno Community Hospital and Medical Center and 1 other hospital — $3.60 less than the median here. Across California, the median is $13.20 at 93 hospitals.
Cash prices at 4 facilities across 3 cities for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 24, 2026; the hospital files themselves were last updated between Jun 15, 2026 and Jul 30, 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 Fresno, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Fresno Community Hospital and Medical Center lowest Clovis, CA · (559) 324-4000 RHEUMATIOD FACTOR QUANT;Q | $13.20 | $16.50 | $4.13–$18.15 | 20% | Jun 15, 2026 source file |
| Fresno Community Hospital and Medical Center lowest Fresno, CA · (559) 459-6000 RHEUMATIOD FACTOR QUANT;Q | $13.20 | $16.50 | $4.13–$18.15 | 20% | Jun 18, 2026 source file |
| Fresno Community Hospital and Medical Center lowest Fresno, CA · (559) 459-6000 RHEUMATIOD FACTOR QUANT;Q | $13.20 | $16.50 | $4.13–$18.15 | 20% | Jun 16, 2026 source file |
| Fresno Community Hospital and Medical Center lowest Fresno, CA · (559) 459-6000 RHEUMATIOD FACTOR QUANT;Q | $13.20 | $16.50 | $4.13–$18.15 | 20% | Jun 18, 2026 source file |
| Madera Community Hospital Madera, CA · (559) 706-8226 Rheumatoid factor level | $20.40 | $34.00 | $4.54–$6.50 | 40% | Jul 30, 2026 source file |
| Kaiser Foundation Hospital - Fresno Fresno, CA · (559) 448-4500 RHEUMATOID FACTOR QUANTITATIVE | $45.36 | $81.00 | $5.00–$15.00 | 44% | — source file |
Outpatient: lowest $13.20, median $16.80, highest $45.36 — a 3.4× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $13.20. 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 4 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.