C-peptide test cost in Austin, TX — inpatient
In Austin-Round Rock-San Marcos, TX, 18 hospitals list a cash price for C-peptide blood test as an inpatient: from $16.50 to $396.14, with a median of $87.65. The lowest listed price is at Baylor Scott & White Medical Center - Round Rock and 6 other hospitals — $71.15 less than the median here. Across Texas, the median is $81.30 at 284 hospitals.
Cash prices at 18 facilities across 10 cities for code 84681, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 5, 2026 and Aug 6, 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 Austin-Round Rock-San Marcos, TX.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Baylor Scott & White Medical Center - Round Rock lowest Round Rock, TX · (512) 509-0401 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 13, 2026 · source file | $16.50 | $27.50 | $15.12–$24.75 | 40% |
| Baylor Scott & White Medical Center - Pflugerville lowest Pflugerville, TX · (512) 654-6100 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 13, 2026 · source file | $16.50 | $27.50 | $15.12–$24.75 | 40% |
| Baylor Scott & White Medical Center - Taylor lowest Taylor, TX · (512) 352-7611 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 12, 2026 · source file | $16.50 | $27.50 | $15.12–$22.00 | 40% |
| Baylor Scott & White Medical Center - Lakeway lowest Lakeway, TX · (512) 509-0401 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 13, 2026 · source file | $16.50 | $27.50 | $15.12–$24.75 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park lowest Cedar Park, TX · (512) 509-0401 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 3, 2026 · source file | $16.50 | $27.50 | $15.12–$17.88 | 40% |
| Baylor Scott & White Medical Center - Austin lowest Austin, TX · (512) 654-2100 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 13, 2026 · source file | $16.50 | $27.50 | $15.12–$19.25 | 40% |
| Baylor Scott & White Medical Center - Buda lowest Buda, TX · (737) 999-6200 HC REF ARUP, 0070103 C PEPTIDE SERUM File of Jun 13, 2026 · source file | $16.50 | $27.50 | $15.12–$19.25 | 40% |
| Ascension Seton Edgar B Davis Luling, TX · (830) 875-7000 C-PEPTIDE source file | $75.51 | $209.75 | $10.84–$154.73 | 64% |
| Ascension Seton Hays Kyle, TX · (512) 324-5000 C-PEPTIDE source file | $86.85 | $241.25 | $10.84–$154.73 | 64% |
| Texas Children's Hospital - Austin Austin, TX · (832) 824-1100 TC C-PEPTIDE File of Mar 5, 2026 · source file | $88.44 | $132.00 | $52.80–$125.40 | 33% |
| Ascension Seton Smithville Smithville, TX · (512) 237-3214 C-PEPTIDE source file | $90.27 | $250.75 | $10.84–$154.73 | 64% |
| Ascension Seton Northwest Austin, TX · (512) 324-6000 C-PEPTIDE source file | $90.27 | $250.75 | $10.84–$154.73 | 64% |
| Dell Seton Medical Center at the University of Tx Austin, TX · (512) 324-7000 C-PEPTIDE source file | $90.27 | $250.75 | $10.84–$154.73 | 64% |
| Ascension Seton Southwest Austin, TX · (512) 324-9000 C-PEPTIDE source file | $90.27 | $250.75 | $10.84–$154.73 | 64% |
| Ascension Seton Medical Center Austin Austin, TX · (512) 324-1000 C-PEPTIDE source file | $90.27 | $250.75 | $10.84–$154.73 | 64% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 13, 2026 · source file | $102.96 | $171.60 | $94.38–$154.44 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 13, 2026 · source file | $102.96 | $171.60 | $94.38–$120.12 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 3, 2026 · source file | $102.96 | $171.60 | $94.38–$111.54 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 13, 2026 · source file | $102.96 | $171.60 | $94.38–$154.44 | 40% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 13, 2026 · source file | $102.96 | $171.60 | $94.38–$154.44 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 12, 2026 · source file | $102.96 | $171.60 | $94.38–$137.28 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC REF MEDFUSION COMP 36509 CPT 84681 File of Jun 13, 2026 · source file | $102.96 | $171.60 | $94.38–$120.12 | 40% |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC C-PEPTIDE File of Jun 13, 2026 · source file | $130.36 | $217.27 | $119.50–$152.09 | 40% |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC C-PEPTIDE File of Jun 13, 2026 · source file | $130.36 | $217.27 | $119.50–$195.54 | 40% |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC C-PEPTIDE File of Jun 13, 2026 · source file | $130.36 | $217.27 | $119.50–$152.09 | 40% |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC C-PEPTIDE File of Jun 12, 2026 · source file | $130.36 | $217.27 | $119.50–$173.82 | 40% |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX · (512) 509-0401 HC C-PEPTIDE File of Jun 3, 2026 · source file | $130.36 | $217.27 | $119.50–$141.23 | 40% |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX · (512) 509-0401 HC C-PEPTIDE File of Jun 13, 2026 · source file | $130.36 | $217.27 | $119.50–$195.54 | 40% |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC C-PEPTIDE File of Jun 13, 2026 · source file | $130.36 | $217.27 | $119.50–$195.54 | 40% |
| Ascension Seton Austin, TX C-PEPTIDE source file | $175.53 | $250.75 | $10.84–$154.73 | 30% |
| PAM Rehabilitation Hospital of Round Rock Round Rock, TX C-Peptide File of Aug 6, 2026 · source file | $249.35 | $249.35 | $174.55–$224.42 | — |
| Ascension Cedar Park Cedar Park, TX · (512) 528-7000 C-PEPTIDE source file | $396.14 | $1,100.40 | $10.84–$495.18 | 64% |
Inpatient: lowest $16.50, median $87.65, highest $396.14 — a 24.0× difference within the same market.
As an outpatient, the same code is billed by 28 facilities here, median $90.27 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 16 of 18 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
A C-peptide test shows how much insulin the pancreas is making. It helps tell type 1 from type 2 diabetes and find the cause of low blood sugar.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.