C-peptide test cost in Houston, TX
In Houston-Pasadena-The Woodlands, TX, 61 hospitals list a cash price for C-peptide blood test: from $11.00 to $1,358.99, with a median of $72.80. The lowest listed price is at Methodist Willowbrook Hospital and 8 other hospitals — $61.80 less than the median here. Across Texas, the median is $81.30 at 284 hospitals.
Cash prices at 61 facilities across 24 cities for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Sep 8, 2026.
Lowest$11.00Methodist Willowbrook Hospital + 8 more
Median$72.80half pay less
Highest$1,358.99in this market
Difference123.5×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 Houston-Pasadena-The Woodlands, TX.
median
Lowest $11.00Highest $1,358.99
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Methodist Willowbrook Hospital lowest Houston, TX · (281) 477-1000 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Clear Lake Hospital lowest Nassau Bay, TX · (281) 333-5503 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist The Woodlands Hospital lowest The Woodlands, TX · (936) 270-2000 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| The Methodist Hospital lowest Houston, TX · (713) 790-2221 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Baytown Hospital lowest Baytown, TX · (281) 420-8600 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Methodist West Houston Hospital lowest Houston, TX · (832) 522-1000 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Methodist Sugar Land Hospital lowest Sugar Land, TX · (281) 274-8000 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Continuing Care Hospital lowest Katy, TX HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Cypress Hospital lowest Cypress, TX · (346) 618-1506 HC C-PEPTIDE ULTRASENSITIVE | $11.00 | $22.00 | — | 50% | Apr 1, 2026 source file |
| Hsa St. Joseph Houston, TX · (713) 757-1000 C-PEPTIDE | $20.39 | $327.00 | $10.94–$327.00 | 94% | Sep 1, 2026 source file |
| Hsa St. Joseph Houston, TX · (713) 757-1000 RL C-PEPTIDE | $20.39 | $327.00 | $10.94–$327.00 | 94% | Sep 1, 2026 source file |
| Harris Health Taub Loop Houston, TX · (713) 873-2000 C-PEPTIDE | $20.81 | $293.00 | $17.48–$190.45 | 93% | — source file |
| Harris Health Houston, TX · (713) 873-2000 C-PEPTIDE | $20.81 | $293.00 | $17.48–$190.45 | 93% | — source file |
| St Luke's Patients Medical Center Pasadena, TX · (281) 487-0700 C-PEPTIDE | $41.58 | $118.80 | $16.61–$106.76 | 65% | Feb 28, 2026 source file |
| The Community Hospital of Brazosport Lake Jackson, TX · (979) 297-4411 C-PEPTIDE | $63.70 | $182.00 | $17.48–$146.33 | 65% | Feb 28, 2026 source file |
| Memorial Hermann Northeast Hospital Humble, TX · (281) 540-7700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Katy Hospital Katy, TX · (281) 392-1111 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Greater Heights Hospital Houston, TX · (713) 448-6796 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Rehabilitation Hospital Katy Katy, TX HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Pearland Hospital Pearland, TX · (713) 448-6796 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Sugar Land Hospital Sugar Land, TX · (281) 725-5000 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Memorial City Medical Center Houston, TX · (713) 242-3000 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Southeast Hospital Houston, TX · (713) 448-6796 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann The Woodlands Medical Center The Woodlands, TX · (713) 448-6796 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Tirr Memorial Hermann Houston, TX HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Southwest Hospital Houston, TX · (713) 448-6796 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $70.40 | $220.00 | — | 68% | Apr 1, 2026 source file |
| The Womans Hospital of Texas Houston, TX · (713) 790-1234 C-PEPTIDE | $70.77 | $70.77 | $4.25–$60.15 | — | Sep 1, 2026 source file |
| The Womans Hospital of Texas Houston, TX · (713) 790-1234 C-peptide | $70.77 | $70.77 | $85.04–$109.59 | — | Sep 1, 2026 source file |
| St. Lukes Hospital at the Vintage Houston, TX · (832) 534-5000 HC LAB C-PEPTIDE | $72.80 | $208.00 | $14.98–$208.00 | 65% | Feb 28, 2026 source file |
| CHI St. Luke's Health Springwood Village Spring, TX · (936) 266-4050 HC LAB C-PEPTIDE | $72.80 | $208.00 | $14.98–$208.00 | 65% | Feb 28, 2026 source file |
| St Luke's Lakeside Hospital The Woodlands, TX · (936) 266-4055 HC LAB C-PEPTIDE | $72.80 | $208.00 | $14.98–$208.00 | 65% | Feb 28, 2026 source file |
| St Luke's the Woodlands Hospital The Woodlands, TX · (936) 266-4050 HC LAB C-PEPTIDE | $72.80 | $208.00 | $14.98–$208.00 | 65% | Feb 28, 2026 source file |
| St Luke's Sugar Land Hospital Sugar Land, TX · (281) 637-7000 HC LAB C-PEPTIDE | $72.80 | $208.00 | $14.98–$208.00 | 65% | Feb 28, 2026 source file |
| CHI St. Luke's Health Baylor College of Medicine Medical Center Houston, TX · (832) 355-1000 HC LAB C-PEPTIDE | $72.80 | $208.00 | $14.98–$208.00 | 65% | Feb 28, 2026 source file |
| Texas Children's Hospital Houston, TX · (832) 824-1000 TC C-PEPTIDE | $88.44 | $132.00 | $20.81–$125.40 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital Houston, TX · (832) 824-1000 TC C-PEPTIDE | $88.44 | $132.00 | $20.81–$125.40 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital Houston, TX · (832) 824-1000 TC C-PEPTIDE | $88.44 | $132.00 | $20.81–$125.40 | 33% | Mar 5, 2026 source file |
| Sweeny Community Hospital Sweeny, TX · (979) 548-3311 C-peptide (protein) level | $89.58 | $149.30 | $31.07–$149.30 | 40% | Sep 8, 2026 source file |
| Memorial Hermann-Texas Medical Center Houston, TX · (713) 704-3700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Children's Memorial Hermann Hospital Houston, TX HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Rockets Orthopedic Hospital Bellaire, TX HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Imaging Center (Upper Kirby) Houston, TX · (713) 704-3700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Imaging Center (Texas Medical Center) Houston, TX · (713) 704-3700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Imaging Center (Bellaire) Bellaire, TX · (713) 704-3700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Imaging Center (Cypress) Cypress, TX · (713) 704-3700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| Memorial Hermann Cypress Hospital Cypress, TX · (713) 704-3700 HC RL ASSAY OF C-PEPTIDE - C-PEPTIDE | $92.56 | $289.25 | — | 68% | Apr 1, 2026 source file |
| PAM Health Rehabilitation Hospital of Sugar Land Sugar Land, TX C-Peptide | $105.00 | $105.00 | $15.61–$89.25 | — | Aug 6, 2026 source file |
| Shriners Childrens Texas Galveston, TX · (409) 770-6600 ASSAY OF C-PEPTIDE | $128.30 | $128.30 | $17.69–$39.96 | — | — source file |
| Liberty Dayton Regional Medical Center Liberty, TX · (936) 336-7316 C-peptide, Lc/ms/ms Qst | $139.00 | $199.00 | $119.00–$189.00 | 30% | — source file |
| Liberty Dayton Regional Medical Center Liberty, TX · (936) 336-7316 C-peptide Qst | $141.00 | $201.00 | $121.00–$191.00 | 30% | — source file |
| Liberty Dayton Regional Medical Center Liberty, TX · (936) 336-7316 C-peptide. | $141.00 | $201.00 | $121.00–$191.00 | 30% | — source file |
| The Methodist Hospital Houston, TX · (713) 790-2221 HC C-PEPTIDE | $160.00 | $320.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Baytown Hospital Baytown, TX · (281) 420-8600 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Clear Lake Hospital Nassau Bay, TX · (281) 333-5503 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Continuing Care Hospital Katy, TX HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist The Woodlands Hospital The Woodlands, TX · (936) 270-2000 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Methodist West Houston Hospital Houston, TX · (832) 522-1000 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Methodist Sugar Land Hospital Sugar Land, TX · (281) 274-8000 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Houston Methodist Cypress Hospital Cypress, TX · (346) 618-1506 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| Methodist Willowbrook Hospital Houston, TX · (281) 477-1000 HC C-PEPTIDE | $187.00 | $374.00 | — | 50% | Apr 1, 2026 source file |
| HCA Houston Healthcare Conroe Conroe, TX · (936) 539-1111 C-peptide | $197.88 | $197.88 | $17.83–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Conroe Conroe, TX · (936) 539-1111 C-PEPTIDE | $197.88 | $197.88 | $11.87–$178.09 | — | Sep 1, 2026 source file |
| Pam Rehabilitation Hospital of Clear Lake Webster, TX C-Peptide | $199.50 | $199.50 | $15.61–$179.55 | — | Aug 6, 2026 source file |
| Voyages of Sugar Land South Sugar Land, TX C-Peptide | $208.10 | $208.10 | $52.03–$156.08 | — | Aug 6, 2026 source file |
| Voyages Behavioral Health of Conroe West Conroe, TX C-Peptide | $208.10 | $208.10 | $52.03–$156.08 | — | Aug 6, 2026 source file |
| PAM Health Rehabilitation Hospital of Houston Heights Houston, TX C-Peptide | $219.32 | $219.32 | — | — | Aug 6, 2026 source file |
| HCA Houston Healthcare West Houston, TX · (281) 588-8080 C-peptide | $455.00 | $455.00 | $17.13–$143.17 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare West Houston, TX · (281) 588-8080 C-PEPTIDE | $455.00 | $455.00 | $27.30–$409.50 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Tomball Houston, TX · (281) 351-7500 C-peptide | $579.21 | $579.21 | $85.04–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Tomball Houston, TX · (281) 351-7500 C-PEPTIDE | $579.21 | $579.21 | $34.75–$492.33 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Northwest Spring, TX · (281) 440-1000 C-PEPTIDE | $579.76 | $579.76 | $34.79–$492.80 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Northwest Spring, TX · (281) 440-1000 C-peptide | $579.76 | $579.76 | $17.83–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Medical Center Houston, TX · (713) 527-5019 C-PEPTIDE | $673.00 | $673.00 | $40.38–$572.05 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Medical Center Houston, TX · (713) 527-5019 C-peptide | $673.00 | $673.00 | $17.83–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Kingwood Cleveland, TX · (281) 359-7500 C-peptide | $698.74 | $698.74 | $17.83–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Kingwood Cleveland, TX · (281) 359-7500 C-PEPTIDE | $698.74 | $698.74 | $41.92–$628.87 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare North Cypress Houston, TX · (281) 359-7500 C-PEPTIDE | $698.74 | $698.74 | $41.92–$593.93 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare North Cypress Houston, TX · (281) 359-7500 C-peptide | $698.74 | $698.74 | $85.04–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Rehabilitation Hospital Southeast Pasadena, TX C-peptide | $1,139.83 | $1,139.83 | $17.83–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Rehabilitation Hospital Southeast Pasadena, TX C-PEPTIDE | $1,139.83 | $1,139.83 | $68.39–$1,025.85 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Southeast Pasadena, TX · (713) 359-1000 C-PEPTIDE | $1,139.83 | $1,139.83 | $68.39–$1,025.85 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Southeast Pasadena, TX · (713) 359-1000 C-peptide | $1,139.83 | $1,139.83 | $17.83–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Pearland Houston, TX · (713) 770-7000 C-peptide | $1,181.75 | $1,181.75 | $85.04–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Pearland Houston, TX · (713) 770-7000 C-PEPTIDE | $1,181.75 | $1,181.75 | $70.91–$1,004.49 | — | Sep 1, 2026 source file |
| HCA Houston Mainland Texas City, TX · (281) 332-2511 C-PEPTIDE | $1,358.99 | $1,358.99 | $81.54–$1,223.09 | — | Sep 1, 2026 source file |
| HCA Houston Mainland Texas City, TX · (281) 332-2511 C-peptide | $1,358.99 | $1,358.99 | $85.04–$109.59 | — | Sep 1, 2026 source file |
| HCA Houston Healthcare Clear Lake Friendswood, TX · (281) 332-2511 C-PEPTIDE | $1,358.99 | $1,358.99 | $81.54–$1,223.09 | — | Sep 1, 2026 source file |
Outpatient: lowest $11.00, median $72.80, highest $1,358.99 — a 123.5× difference within the same market.
As an inpatient, the same code is billed by 44 facilities here, median $70.40. 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 14 of 32 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.