Rheumatoid factor test cost in Missouri
In Missouri, 28 hospitals publish a cash price for rheumatoid factor (RF) test: from $5.00 to $104.65, with a median of $36.04. The lowest price is at St Joseph Medical Center (Kansas City). The highest price is 20.9× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 86431. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 25, 2026.
Lowest$5.00St Joseph Medical Center
Median$36.04half pay less
Highest$104.65in Missouri
Lowest saves$31.04vs the median
Hospitals in Missouri, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| St Joseph Medical Center lowest Kansas City · Kansas City, MO-KS Hc Rheumatoid Factor, Quant | $5.00 | $157.20 | Mar 17, 2026 source file |
| Western Missouri Medical Center Warrensburg · Warrensburg, MO Rheumatoid Factor 3 | $10.00 | $36.10 | Dec 1, 2024 source file |
| Mercy Perry Perryville · Perryville, MO Rheumatoid Factor Quantitative | $16.90 | $26.00 | — source file |
| Mercy Hospital Southeast Cape Girardeau · Cape Girardeau, MO-IL Rheumatoid Factor Quantitative | $17.25 | $23.00 | Jun 12, 2026 source file |
| Mercy Hospital Jefferson Festus · St. Louis, MO-IL Rheumatoid Factor Quantitative | $20.15 | $31.00 | — source file |
| Mercy Hospital South Saint Louis · St. Louis, MO-IL Rheumatoid Factor Quantitative | $20.15 | $31.00 | — source file |
| Mercy Hospital Southeast Cape Girardeau · Cape Girardeau, MO-IL Rheumatoid Factor Quantitative | $20.15 | $31.00 | — source file |
| Mercy Hospital St Louis Saint Louis · St. Louis, MO-IL Rheumatoid Factor Quantitative | $20.15 | $31.00 | — source file |
| Mercy Hospital Carthage Carthage · Joplin, MO-KS Rheumatoid Factor Quantitative | $24.05 | $37.00 | — source file |
| Mercy Hospital Stoddard Bernie · Bernie, MO Rheumatoid Factor Quantitative | $31.50 | $42.00 | Jun 12, 2026 source file |
| Mercy Hospital Stoddard Dexter · Dexter, MO Rheumatoid Factor Quantitative | $31.50 | $42.00 | Jun 12, 2026 source file |
| Children's Mercy Hospital Kansas City · Kansas City, MO-KS RHEUMATOID FACTOR QUANTITATIVE MAIN | $32.16 | $67.00 | — source file |
| Curators of the University of Missouri Columbia · Columbia, MO RHEUMATOID FACTOR QUANTITATIVE P28620813 | $33.45 | $55.75 | Dec 15, 2025 source file |
| Boone Hospital Center Columbia · Columbia, MO RHEUMATOID FACTOR QNT | $35.82 | $59.70 | Apr 1, 2026 source file |
| NKC Health North Kansas City · Kansas City, MO-KS RHEUMATOID FACTOR | $36.25 | $125.00 | Mar 6, 2026 source file |
| Mercy Hospital Stoddard Dexter · Dexter, MO Rheumatoid Factor Quantitative | $36.40 | $56.00 | — source file |
| Mercy Hospital Lebanon Lebanon · Lebanon, MO Rheumatoid Factor Quantitative | $37.05 | $57.00 | — source file |
| Shriners Childrens - St Louis Saint Louis · St. Louis, MO-IL RHEUMATOID FACTOR QUANT | $49.00 | $49.00 | — source file |
| Mercy Hospital Washington Washington · St. Louis, MO-IL Rheumatoid Factor Quantitative | $50.05 | $77.00 | — source file |
| Freeman Health System - Freeman West Joplin · Joplin, MO-KS RA TEST (JOPLIN) | $71.82 | $179.55 | Sep 1, 2026 source file |
| Mercy Hospital Lincoln Troy · St. Louis, MO-IL Rheumatoid Factor Quantitative | $74.75 | $115.00 | — source file |
| Mercy Hospital Aurora Aurora · Aurora, MO Rheumatoid Factor Quantitative | $83.20 | $128.00 | — source file |
| Mercy Hospital Cassville Cassville · Cassville, MO Rheumatoid Factor Quantitative | $83.20 | $128.00 | — source file |
| Mercy St. Francis Hospital Mountain View · West Plains, MO Rheumatoid Factor Quantitative | $83.20 | $128.00 | — source file |
| Fitzgibbon Hospital Marshall · Marshall, MO Rheumatoid factor level | $96.43 | $120.54 | Feb 2, 2026 source file |
| Mercy Hospital Joplin Joplin · Joplin, MO-KS Rheumatoid Factor Quantitative | $96.85 | $149.00 | — source file |
| Mercy Hospital Springfield Springfield · Springfield, MO Rheumatoid Factor Quantitative | $104.65 | $161.00 | — source file |
| Mercy Hospital Springfield Ozark · Springfield, MO Rheumatoid Factor Quantitative | $104.65 | $161.00 | — source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| St. Louis, MO-IL | 6 | $20.15 | $34.58 |
| Joplin, MO-KS | 3 | $24.05 | $71.82 |
| Kansas City, MO-KS | 3 | $5.00 | $32.16 |
| Cape Girardeau, MO-IL | 2 | $17.25 | $18.70 |
| Columbia, MO | 2 | $33.45 | $34.64 |
| Dexter, MO | 2 | $31.50 | $33.95 |
| Springfield, MO | 2 | $104.65 | $104.65 |
| Aurora, MO | 1 | $83.20 | $83.20 |
| Bernie, MO | 1 | $31.50 | $31.50 |
| Cassville, MO | 1 | $83.20 | $83.20 |
| Lebanon, MO | 1 | $37.05 | $37.05 |
| Marshall, MO | 1 | $96.43 | $96.43 |
| Perryville, MO | 1 | $16.90 | $16.90 |
| Warrensburg, MO | 1 | $10.00 | $10.00 |
| West Plains, MO | 1 | $83.20 | $83.20 |
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.
Rheumatoid factor (RF) test in other states
- Alabama$118.75
- Alaska$44.46
- Arizona$10.50
- Arkansas$41.89
- California$13.20
- Colorado$26.20
- Connecticut$38.53
- Delaware$54.98
- Florida$19.29
- Georgia$79.56
- Hawaii$18.60
- Idaho$13.84
- Illinois$37.50
- Indiana$33.60
- Iowa$41.78
- Kansas$26.48
- Kentucky$119.25
- Louisiana$20.07
- Maine$32.20
- Maryland$27.44
- Massachusetts$23.92
- Michigan$35.28
- Minnesota$40.55
- Mississippi$39.16
- Montana$36.80
- Nebraska$37.22
- Nevada$10.37
- New Hampshire$30.81
- New Jersey$6.52
- New Mexico$29.20
- New York$25.63
- North Carolina$67.50
- North Dakota$23.36
- Ohio$31.85
- Oklahoma$28.68
- Oregon$40.30
- Pennsylvania$39.20
- Rhode Island$45.00
- South Carolina$80.00
- South Dakota$43.10
- Tennessee$18.81
- Texas$20.70
- Utah$71.26
- Vermont$60.43
- Virginia$16.35
- Washington$31.95
- West Virginia$36.50
- Wisconsin$57.50
- Wyoming$21.29
Median cash price across the state's hospitals.