Lab tests CPT 84681 Outpatient

C-peptide test cost in Fort Wayne, IN

In Fort Wayne, IN, 8 hospitals list a cash price for C-peptide blood test: from $52.32 to $196.50, with a median of $112.00. The lowest listed price is at St. Joseph Health System — $59.68 less than the median here. Across Indiana, the median is $132.53 at 86 hospitals.

Cash prices at 8 facilities across 3 cities for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$52.32St. Joseph Health System
Median$112.00half pay less
Highest$196.50in this market
Difference3.8×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 Fort Wayne, IN.

median
Lowest $52.32Highest $196.50

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
St. Joseph Health System lowest Fort Wayne, IN · (260) 425-3000 C-Peptide Level LC $52.32 $218.00 $18.35–$218.00 76% Apr 1, 2026
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Dupont Hospital Fort Wayne, IN · (260) 416-3000 C Peptide Level (RL) $88.83 $329.00 $18.35–$296.10 73% Apr 1, 2026
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Dupont Hospital Fort Wayne, IN · (260) 416-3000 C Peptide $88.83 $329.00 $18.35–$296.10 73% Apr 1, 2026
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Parkview Whitley Hospital Columbia City, IN · (260) 248-9301 HC C-PEPTIDE $106.50 $213.00 — 50% —
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Parkview Regional Medical Center Fort Wayne, IN · (260) 266-1195 HC C-PEPTIDE $112.00 $224.00 — 50% —
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Parkview Ortho Hospital Fort Wayne, IN HC C-PEPTIDE $112.00 $224.00 — 50% —
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St. Joseph Health System Fort Wayne, IN · (260) 425-3000 C Peptide, Ultrasensitive, ES LC $157.20 $655.00 $18.35–$655.00 76% Apr 1, 2026
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St. Joseph Health System Fort Wayne, IN · (260) 425-3000 84681 L213660 C-PEPTIDE 889 $157.20 $655.00 $18.35–$655.00 76% Apr 1, 2026
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St. Joseph Health System Fort Wayne, IN · (260) 425-3000 C Peptide $157.20 $655.00 $18.35–$655.00 76% Apr 1, 2026
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St. Joseph Health System Fort Wayne, IN · (260) 425-3000 C Peptide Level (RL) $157.20 $655.00 $18.35–$655.00 76% Apr 1, 2026
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Lutheran Musculoskeletal Center – The Orthopedic Hospital Fort Wayne, IN C-Peptide Level LC $164.70 $610.00 $18.35–$610.00 73% Apr 1, 2026
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Bluffton Regional Medical Center Bluffton, IN · (260) 824-3210 C Peptide Level (RL) $168.24 $701.00 $18.35–$630.90 76% Apr 1, 2026
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Bluffton Regional Medical Center Bluffton, IN · (260) 824-3210 C Peptide $168.24 $701.00 $18.35–$630.90 76% Apr 1, 2026
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Bluffton Regional Medical Center Bluffton, IN · (260) 824-3210 84681 L213660 C-PEPTIDE 889 $168.24 $701.00 $18.35–$630.90 76% Apr 1, 2026
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Lutheran Musculoskeletal Center – The Orthopedic Hospital Fort Wayne, IN C Peptide $174.69 $647.00 $18.35–$647.00 73% Apr 1, 2026
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Lutheran Musculoskeletal Center – The Orthopedic Hospital Fort Wayne, IN C Peptide Level (RL) $174.69 $647.00 $18.35–$647.00 73% Apr 1, 2026
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Lutheran Hospital of Indiana Fort Wayne, IN · (260) 435-7001 C Peptide Level (RL) $196.50 $655.00 $18.35–$589.50 70% Apr 1, 2026
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Lutheran Hospital of Indiana Fort Wayne, IN · (260) 435-7001 C Peptide, Ultrasensitive, ES LC $196.50 $655.00 $18.35–$589.50 70% Apr 1, 2026
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Lutheran Hospital of Indiana Fort Wayne, IN · (260) 435-7001 84681 L213660 C-PEPTIDE 889 $196.50 $655.00 $18.35–$589.50 70% Apr 1, 2026
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Lutheran Hospital of Indiana Fort Wayne, IN · (260) 435-7001 C Peptide $196.50 $655.00 $18.35–$589.50 70% Apr 1, 2026
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Outpatient: lowest $52.32, median $112.00, highest $196.50 — a 3.8× difference within the same market.

As an inpatient, the same code is billed by 8 facilities here, median $133.98. 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 5 of 5 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.