Rheumatoid factor test cost in Austin, TX
In Austin-Round Rock-San Marcos, TX, 28 hospitals list a cash price for rheumatoid factor (RF) test: from $6.24 to $423.00, with a median of $28.80. The lowest listed price is at The Hospital at Westlake Medical Center — $22.56 less than the median here. Across Texas, the median is $45.02 at 288 hospitals.
- The median here, $28.80, is 29% below the US median of $40.50.
- That is 5.1× Medicare's 2026 national rate for the same service ($5.67).
- Austin, TX ranks 2nd of 4 metro areas in Texas by median, cheapest first.
- 10 of 28 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 28 facilities across 14 cities for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 11, 2026; the hospital files themselves were last updated between Sep 2, 2024 and Oct 30, 2026.
Lowest$6.24The Hospital at Westlake Medical Center
Median$28.80half of hospitals charge less
Highest$423.00in this market
Difference67.8×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Austin-Round Rock-San Marcos, TX.
median
Lowest $6.24Highest $423.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| The Hospital at Westlake Medical Center lowest Austin, TX · (512) 327-0000 RHEUMATOID FACTOR QU File of Sep 2, 2024 · source file | $6.24 | $72.45 | $4.76–$50.72 | 91% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Jun 13, 2026 · source file | $13.50 | $22.50 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Oct 30, 2026 · source file | $13.50 | $22.50 | $4.28–$37.37 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Jun 13, 2026 · source file | $13.50 | $22.50 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Jun 13, 2026 · source file | $13.50 | $22.50 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Jun 13, 2026 · source file | $13.50 | $22.50 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Jun 13, 2026 · source file | $13.50 | $22.50 | $4.76–$35.78 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC REF ARUP 0050465 RHEUMATOID FACTOR File of Jun 3, 2026 · source file | $13.50 | $22.50 | $5.95–$14.62 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC REF ARUP COMP 0050119, CPT 86431 File of Jun 13, 2026 · source file | $14.03 | $23.38 | $4.76–$35.78 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC REF ARUP COMP 0050119, CPT 86431 File of Jun 3, 2026 · source file | $14.03 | $23.38 | $5.95–$15.20 | 40% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC REF ARUP COMP 0050119, CPT 86431 File of Jun 13, 2026 · source file | $14.03 | $23.38 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC REF ARUP COMP 0050119, CPT 86431 File of Jun 13, 2026 · source file | $14.03 | $23.38 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC REF ARUP COMP 0050119, CPT 86431 File of Jun 13, 2026 · source file | $14.03 | $23.38 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC REF ARUP COMP 0050119, CPT 86431 File of Jun 13, 2026 · source file | $14.03 | $23.38 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF ARUP COMP 0050119, CPT 86431 File of Oct 30, 2026 · source file | $14.03 | $23.38 | $4.44–$37.37 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Oct 30, 2026 · source file | $15.00 | $25.00 | $4.75–$37.37 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Jun 13, 2026 · source file | $15.00 | $25.00 | $4.76–$35.78 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Jun 3, 2026 · source file | $15.00 | $25.00 | $5.95–$16.25 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Jun 13, 2026 · source file | $15.00 | $25.00 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Jun 13, 2026 · source file | $15.00 | $25.00 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Jun 13, 2026 · source file | $15.00 | $25.00 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC REF ARUP, 2003347 RHEUMATOID FACTOR BF File of Jun 13, 2026 · source file | $15.00 | $25.00 | $4.76–$35.78 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Jun 3, 2026 · source file | $24.11 | $40.18 | $5.95–$26.12 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Jun 13, 2026 · source file | $24.11 | $40.18 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Jun 13, 2026 · source file | $24.11 | $40.18 | $4.76–$36.16 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Jun 13, 2026 · source file | $24.11 | $40.18 | $4.76–$36.16 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Jun 13, 2026 · source file | $24.11 | $40.18 | $4.76–$35.78 | 40% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Jun 13, 2026 · source file | $24.11 | $40.18 | $4.76–$36.16 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF MAYO RHUT RHEUMATOID FACTOR, SERUM File of Oct 30, 2026 · source file | $24.11 | $40.18 | $7.63–$37.37 | 40% |
| Ascension Seton Hays Kyle, TX · (512) 324-5000 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $27.72 | $77.00 | $4.76–$42.18 | 64% |
| Ascension Seton Edgar B Davis Luling, TX · (830) 875-7000 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $27.99 | $77.75 | $4.76–$42.18 | 64% |
| Ascension Seton Medical Center Austin Austin, TX · (512) 324-1000 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $28.80 | $80.00 | $4.76–$42.18 | 64% |
| Ascension Seton Southwest Austin, TX · (512) 324-9000 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $28.80 | $80.00 | $4.76–$42.18 | 64% |
| Ascension Seton Northwest Austin, TX · (512) 324-6000 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $28.80 | $80.00 | $4.76–$42.18 | 64% |
| Ascension Seton Smithville Smithville, TX · (512) 237-3214 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $28.80 | $80.00 | $4.76–$42.18 | 64% |
| Dell Seton Medical Center at the University of Tx Austin, TX · (512) 324-7000 LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $28.80 | $80.00 | $4.76–$42.18 | 64% |
| Ascension Seton Hays Kyle, TX · (512) 324-5000 C3+C4+ANA+RF - 86431+1 more line at this price File of Jan 1, 2026 · source file | $30.51 | $84.75 | $4.76–$42.18 | 64% |
| Ascension Seton Edgar B Davis Luling, TX · (830) 875-7000 C3+C4+ANA+RF - 86431+1 more line at this price File of Jan 1, 2026 · source file | $30.51 | $84.75 | $4.76–$42.18 | 64% |
| Ascension Seton Northwest Austin, TX · (512) 324-6000 C3+C4+ANA+RF-86431+1 more line at this price File of Jan 1, 2026 · source file | $31.68 | $88.00 | $4.76–$42.18 | 64% |
| Ascension Seton Medical Center Austin Austin, TX · (512) 324-1000 C3+C4+ANA+RF-86431+1 more line at this price File of Jan 1, 2026 · source file | $31.68 | $88.00 | $4.76–$42.18 | 64% |
| Ascension Seton Southwest Austin, TX · (512) 324-9000 C3+C4+ANA+RF-86431+1 more line at this price File of Jan 1, 2026 · source file | $31.68 | $88.00 | $4.76–$42.18 | 64% |
| Dell Seton Medical Center at the University of Tx Austin, TX · (512) 324-7000 C3+C4+ANA+RF - 86431+1 more line at this price File of Jan 1, 2026 · source file | $31.68 | $88.00 | $4.76–$42.18 | 64% |
| Ascension Seton Smithville Smithville, TX · (512) 237-3214 C3+C4+ANA+RF - 86431+1 more line at this price File of Jan 1, 2026 · source file | $31.68 | $88.00 | $4.76–$42.18 | 64% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF ARUP 3016634 COMP CPT 86431 File of Oct 30, 2026 · source file | $37.50 | $62.50 | $8.31–$50.00 | 40% |
| Ascension Seton Smithville Smithville, TX · (512) 237-3214 RHEUMATOID FACTOR QUANT+1 more line at this price File of Jan 1, 2026 · source file | $42.75 | $118.75 | $4.76–$53.44 | 64% |
| Ascension Seton Edgar B Davis Luling, TX · (830) 875-7000 RHEUMATOID FACTOR QN+7 more lines at this price File of Jan 1, 2026 · source file | $44.73 | $124.25 | $4.76–$55.91 | 64% |
| Ascension Seton Austin, TX LUPUS COMPREHENSIVE PNL-86431+1 more line at this price File of Jan 1, 2026 · source file | $56.00 | $80.00 | $4.76–$42.18 | 30% |
| Ascension Seton Austin, TX C3+C4+ANA+RF - 86431+1 more line at this price File of Jan 1, 2026 · source file | $61.60 | $88.00 | $4.76–$42.18 | 30% |
| Ascension Seton Hays Kyle, TX · (512) 324-5000 RHEUMATOID FACTOR QN+7 more lines at this price File of Jan 1, 2026 · source file | $68.58 | $190.50 | $4.76–$85.72 | 64% |
| Ascension Seton Northwest Austin, TX · (512) 324-6000 RHEUMATOID FACTOR BF+5 more lines at this price File of Jan 1, 2026 · source file | $71.37 | $198.25 | $4.76–$89.21 | 64% |
| Ascension Seton Medical Center Austin Austin, TX · (512) 324-1000 RHEUMATOID FACTOR,QUANT+5 more lines at this price File of Jan 1, 2026 · source file | $71.37 | $198.25 | $4.76–$89.21 | 64% |
| Ascension Seton Hays Kyle, TX · (512) 324-5000 RHEUMATOID FACTOR QUANT+3 more lines at this price File of Jan 1, 2026 · source file | $71.37 | $198.25 | $4.76–$89.21 | 64% |
| Dell Seton Medical Center at the University of Tx Austin, TX · (512) 324-7000 RHEUMATOID FACTOR,QUANT+7 more lines at this price File of Jan 1, 2026 · source file | $71.37 | $198.25 | $4.76–$89.21 | 64% |
| Ascension Seton Southwest Austin, TX · (512) 324-9000 RHEUMATOID FACTOR,QUANT+5 more lines at this price File of Jan 1, 2026 · source file | $71.37 | $198.25 | $4.76–$89.21 | 64% |
| Ascension Seton Smithville Smithville, TX · (512) 237-3214 RHEUMATOID FACTOR,QUANT+7 more lines at this price File of Jan 1, 2026 · source file | $71.37 | $198.25 | $4.76–$89.21 | 64% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC RHEUMATOID FACTOR - QUANTITATIV+1 more line at this price File of Jun 3, 2026 · source file | $72.58 | $120.96 | $5.95–$78.62 | 40% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC RHEUMATOID FACTOR QUANT - IGA/IGM+1 more line at this price File of Jun 13, 2026 · source file | $72.58 | $120.96 | $4.76–$108.86 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC RHEUMATOID FACTOR QUANT - IGA/IGM+1 more line at this price File of Jun 13, 2026 · source file | $72.58 | $120.96 | $4.76–$90.72 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC RHEUMATOID FACTOR - QUANTITATIV+1 more line at this price File of Jun 13, 2026 · source file | $72.58 | $120.96 | $4.76–$90.72 | 40% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC RHEUMATOID FACTOR QUANT - IGA/IGM+1 more line at this price File of Jun 13, 2026 · source file | $72.58 | $120.96 | $4.76–$108.86 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC RHEUMATOID FACTOR QUANT - IGA/IGM+1 more line at this price File of Jun 13, 2026 · source file | $72.58 | $120.96 | $4.76–$108.86 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC RHEUMATOID FACTOR - QUANTITATIV+1 more line at this price File of Oct 30, 2026 · source file | $75.48 | $125.80 | $8.31–$100.64 | 40% |
| Ascension Seton Southwest Austin, TX · (512) 324-9000 RHEUMATOID FAC.BF+3 more lines at this price File of Jan 1, 2026 · source file | $79.20 | $220.00 | $4.76–$99.00 | 64% |
| Ascension Seton Northwest Austin, TX · (512) 324-6000 RHEUMATOID FAC.BF+3 more lines at this price File of Jan 1, 2026 · source file | $79.20 | $220.00 | $4.76–$99.00 | 64% |
| Ascension Seton Medical Center Austin Austin, TX · (512) 324-1000 RHEUMATOID FAC.BF+3 more lines at this price File of Jan 1, 2026 · source file | $79.20 | $220.00 | $4.76–$99.00 | 64% |
| Ascension Seton Austin, TX RHEUMATOID FACTOR QUANT+1 more line at this price File of Jan 1, 2026 · source file | $83.13 | $118.75 | $4.76–$53.44 | 30% |
| St. David's South Austin Medical Center Bastrop, TX · (512) 448-7107 Rheumatoid factor; quantitative +1 more line at this price File of Sep 1, 2026 · source file | $106.00 | $106.00 | $4.86–$71.44 | — |
| Ascension Cedar Park Cedar Park, TX · (512) 528-7000 RHEUMATOID FACT QUAN+1 more line at this price File of Jan 1, 2026 · source file | $108.08 | $300.21 | $4.76–$135.09 | 64% |
| Texas Children's Hospital - Austin Austin, TX · (832) 824-1100 TC RA TITRATION File of Mar 5, 2026 · source file | $119.26 | $178.00 | $5.67–$169.10 | 33% |
| Ascension Seton Austin, TX RHF BODY FLUID+7 more lines at this price File of Jan 1, 2026 · source file | $138.78 | $198.25 | $4.76–$89.21 | 30% |
| Pam Specialty Hospital of Luling Luling, TX Rheumatoid Factor Quant File of Aug 6, 2026 · source file | $188.15 | $188.15 | $4.25–$169.34 | — |
| St. David's Medical Center Manor, TX · (512) 476-7111 RA QN File of Sep 1, 2026 · source file | $195.00 | $195.00 | $9.75–$175.50 | — |
| Heart Hosp of Austin at St. David's Round Rock Round Rock, TX RA QN File of Sep 1, 2026 · source file | $195.00 | $195.00 | $136.31 | — |
| Heart Hosp of Austin Austin, TX RA QN File of Sep 1, 2026 · source file | $195.00 | $195.00 | $136.31 | — |
| St. David's Georgetown Hospital Georgetown, TX · (512) 476-7111 RA QN File of Sep 1, 2026 · source file | $195.00 | $195.00 | $9.75–$165.75 | — |
| St. David's Round Rock Medical Center Leander, TX · (512) 341-1000 RA QN+1 more line at this price File of Sep 1, 2026 · source file | $237.00 | $237.00 | $4.86–$159.74 | — |
| Cornerstone Specialty Hospitals Round Rock Round Rock, TX RHEUMATOID FACTOR, QUANT File of Apr 1, 2026 · source file | $311.00 | $311.00 | — | — |
| St.davids Surgical Hospital Austin, TX RA QN+1 more line at this price File of Sep 1, 2026 · source file | $423.00 | $423.00 | $5.67–$281.30 | — |
| St. David's North Austin Medical Center Austin, TX · (512) 901-1000 Rheumatoid factor; quantitative +1 more line at this price File of Sep 1, 2026 · source file | $423.00 | $423.00 | $4.86–$281.30 | — |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
Outpatient: lowest $6.24, median $28.80, highest $423.00 — a 67.8× difference within the same market.
As an inpatient, the same code is billed by 19 facilities here, median $28.80. 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 17 of 27 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 rheumatoid factor test is, what the price covers and why prices differ: Rheumatoid factor test explained.