Lab tests CPT 84100 Outpatient

Phosphorus test cost in Indianapolis, IN

In Indianapolis-Carmel-Greenwood, IN, 20 hospitals list a cash price for phosphorus (phosphate) blood test: from $11.09 to $118.34, with a median of $45.80. The lowest listed price is at Franciscan Health Indianapolis and 1 other hospital — $34.71 less than the median here. Across Indiana, the median is $29.79 at 86 hospitals.

Cash prices at 20 facilities across 12 cities for code 84100, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Sep 25, 2026.

Lowest$11.09Franciscan Health Indianapolis + 1 more
Median$45.80half pay less
Highest$118.34in this market
Difference10.7×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 Indianapolis-Carmel-Greenwood, IN.

median
Lowest $11.09Highest $1,207.80

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Franciscan Health Indianapolis lowest Indianapolis, IN · (317) 528-5000 Phosphate 345 $11.09 $48.00 $3.74–$43.20 77% —
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Franciscan St Francis Health - Carmel lowest Carmel, IN · (317) 528-5000 Phosphate 345 $11.09 $48.00 $3.74–$43.20 77% —
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Franciscan Health Mooresville Mooresville, IN · (317) 831-1160 Phosphate 345 $12.19 $48.00 $3.74–$43.20 75% —
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Ascension St. Vincent Anderson Hospital Anderson, IN · (765) 649-2511 #PHOSPHORUS INORGAN(PHOSPHATE) $13.20 $22.00 $2.24–$10.81 40% —
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Ascension St. Vincent Anderson Hospital Anderson, IN · (765) 649-2511 #PHOSPHORUS INORGAN(PHOSPHATE) $13.20 $22.00 $2.24–$10.81 40% —
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Major Hospital Shelbyville, IN · (317) 392-3211 Phosphate level $13.95 $45.00 $2.13–$44.55 69% Apr 7, 2026
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Hendricks Regional Health Danville, IN · (317) 745-4451 HB PHOSPHORUS $22.00 $55.00 $4.74–$52.80 60% —
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Ascension St Vincent Mercy Elwood, IN · (765) 552-4743 #PHOSPHORUS INORGAN(PHOSPHATE) $24.60 $41.00 $2.24–$10.81 40% —
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Ascension St Vincent Mercy Elwood, IN · (765) 552-4743 #PHOSPHORUS INORGAN(PHOSPHATE) $24.60 $41.00 $2.24–$10.81 40% —
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Rehabilitation Hospital Of Indiana Indianapolis, IN Phosphorus RHI $27.36 $48.00 $4.74 43% —
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Rehabilitation Hospital Of Indiana Indianapolis, IN Phosphorus RHI $27.36 $48.00 — 43% —
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Riverview Health Noblesville, IN · (317) 773-0760 PHOSPHORUS $28.80 $48.00 — 40% —
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Eskenazi Health Indianapolis, IN · (317) 880-4818 HC Assay of Phosphorus $39.60 $44.00 $4.00–$44.00 10% —
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Hancock Regional Hospital Greenfield, IN · (317) 462-5544 Phosphate level $52.00 $65.00 $4.74–$195.00 20% Sep 25, 2026
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Naab Road Surgery Center Indianapolis, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Carmel AmbSurg Carmel, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Ascension St. Vincent Seton Speciality Hospital Indianapolis, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Ascension St. Vincent Seton Speciality Hospital Indianapolis, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Carmel AmbSurg Carmel, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Endo Surgery Center Carmel, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Endo Surgery Center Carmel, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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St. Vincent Fishers Hospital Fishers, IN · (317) 415-9000 #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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St. Vincent Fishers Hospital Fishers, IN · (317) 415-9000 #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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St. Vincent Carmel Hospital Carmel, IN · (317) 582-7000 #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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St. Vincent Carmel Hospital Carmel, IN · (317) 582-7000 #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Naab Road Surgery Center Indianapolis, IN #PHOSPHORUS INORGAN(PHOSPHATE) $62.40 $104.00 $2.24–$10.81 40% —
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Johnson Memorial Hospital Franklin, IN · (317) 736-3300 Phosphate level $63.20 $79.00 $3.74–$76.63 20% May 5, 2026
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Ascension St Vincent Mercy Elwood, IN · (765) 552-4743 PHOSPHORUS INORGANIC-PHOSPHATE $90.60 $151.00 $2.24–$10.81 40% —
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Ascension St Vincent Mercy Elwood, IN · (765) 552-4743 PHOSPHORUS INORGANIC-PHOSPHATE $90.60 $151.00 $2.24–$10.81 40% —
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Carmel AmbSurg Carmel, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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St. Vincent Heart Center of Indiana Carmel, IN · (317) 583-5000 PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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St. Vincent Heart Center of Indiana Carmel, IN · (317) 583-5000 PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Endo Surgery Center Carmel, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Endo Surgery Center Carmel, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Naab Road Surgery Center Indianapolis, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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St. Vincent Fishers Hospital Fishers, IN · (317) 415-9000 PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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St. Vincent Fishers Hospital Fishers, IN · (317) 415-9000 PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Carmel AmbSurg Carmel, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Ascension St. Vincent Seton Speciality Hospital Indianapolis, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Ascension St. Vincent Seton Speciality Hospital Indianapolis, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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St. Vincent Carmel Hospital Carmel, IN · (317) 582-7000 PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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St. Vincent Carmel Hospital Carmel, IN · (317) 582-7000 PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Naab Road Surgery Center Indianapolis, IN PHOSPHORUS INORGANIC-PHOSPHATE $98.40 $164.00 $2.24–$10.81 40% —
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Ascension St. Vincent Anderson Hospital Anderson, IN · (765) 649-2511 PHOSPHORUS INORGANIC-PHOSPHATE $101.40 $169.00 $2.24–$10.81 40% —
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Ascension St. Vincent Anderson Hospital Anderson, IN · (765) 649-2511 PHOSPHORUS INORGANIC-PHOSPHATE $101.40 $169.00 $2.24–$10.81 40% —
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Witham Memorial Hospital Lebanon, IN · (765) 485-8000 Phosphate level $118.34 $169.05 $4.74–$422.63 30% Mar 31, 2026
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Eskenazi Health Indianapolis, IN · (317) 880-4818 HC Assay of Phosphorus $1,207.80 $1,342.00 $4.00–$1,342.00 10% —
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Outpatient: lowest $11.09, median $45.80, highest $118.34 — a 10.7× difference within the same market.

As an inpatient, the same code is billed by 15 facilities here, median $39.60. 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 9 of 19 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 phosphorus test measures phosphate in the blood. It is used with calcium for kidney disease, bone disease and parathyroid problems.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.