Lab tests CPT 84100 Wisconsin Outpatient

Phosphorus test cost in Wisconsin

In Wisconsin, 97 hospitals publish a cash price for phosphorus (phosphate) blood test: from $13.89 to $215.00, with a median of $41.60. The lowest price is at Bellin Memorial Health (Green Bay). The highest price is 15.5× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 84100. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 29, 2026. See them on a map

Lowest$13.89Bellin Memorial Health

Median$41.60half of hospitals charge less

Highest$215.00in Wisconsin

Lowest saves$27.71vs the median

Hospitals in Wisconsin, cheapest first

Hospital	Cash price	List price	File date
Bellin Memorial Health lowest Green Bay · Green Bay, WI PHOSPHOROUS INORGANIC (PHOSPHATE)	$13.89	$30.00	Jun 27, 2026 source file
Ascension NE Wisconsin - Mercy Campus Oshkosh · Oshkosh-Neenah, WI HC ASSAY OF PHOSPHORUS	$15.39	$27.00	— source file
Ascension NE Wisconsin - St Elizabeth Campus Appleton · Appleton, WI HC ASSAY OF PHOSPHORUS	$15.39	$27.00	— source file
River Falls Area Hospital River Falls · Minneapolis-St. Paul-Bloomington, MN-WI HCHG PHOSPHATE (AS PHOSPHORUS) QUEST	$15.96	$28.50	Jun 15, 2026 source file
Ascension SE Wisconsin Hospital Milwaukee · Milwaukee-Waukesha, WI HC ASSAY OF PHOSPHORUS	$19.08	$36.00	— source file
Ascension SE Wisconsin Hospital - Elmbrook Campus Brookfield · Brookfield, WI HC ASSAY OF PHOSPHORUS	$19.08	$36.00	— source file
Ascension SE Wisconsin Hospital - Franklin Campus Franklin · Milwaukee-Waukesha, WI HC ASSAY OF PHOSPHORUS	$19.08	$36.00	— source file
Ascension St. Francis Hospital Milwaukee · Milwaukee-Waukesha, WI HC ASSAY OF PHOSPHORUS	$19.08	$36.00	— source file
Midwest Orthopedic Specialty Hospital Franklin · Milwaukee-Waukesha, WI HC ASSAY OF PHOSPHORUS	$19.08	$36.00	— source file
ThedaCare Regional Medical Center-Berlin Berlin · Berlin, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-OSP Appleton · Appleton, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Appleton Appleton · Appleton, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Fond Du Lac Fond Du Lac · Fond du Lac, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Neenah Neenah · Oshkosh-Neenah, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-New London New London · New London, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Oshkosh Oshkosh · Oshkosh-Neenah, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Shawano Shawano · Shawano, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Waupaca Waupaca · Waupaca, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
ThedaCare Regional Medical Center-Wild Rose Wild Rose · Wild Rose, WI ASSAY PHOSPHORUS	$19.32	$34.50	— source file
Childrens Hospital of Wisconsin Fox Valley Neenah · Oshkosh-Neenah, WI HBC FV PHOSPHORUS	$19.66	$35.75	Mar 24, 2026 source file
Grant Regional Health Center Lancaster · Platteville, WI Phosphate level	$21.44	$32.98	Sep 18, 2026 source file
Tamarack Health Ashland Medical Center Ashland · Ashland, WI Po4 Inorganic (Phosphate) - Ref	$21.53	$22.66	— source file
Ascension Calumet Hospital Chilton · Appleton, WI HC ASSAY OF PHOSPHORUS	$22.80	$40.00	— source file
Memorial Hospital of Boscobel Boscobel · Platteville, WI PHOSPHOROUS INORGANIC (PHOSPHATE)	$23.18	$45.00	Jun 27, 2026 source file
Amery Hospital East Amery · East Amery, WI Chemistry	$23.46	$45.00	— source file
OakLeaf Surgical Hospital Altoona · Eau Claire, WI PHOSPHATE LEVEL	$24.39	$27.10	— source file
Gundersen Tri-County Hospital & Clinics Whitehall · Whitehall, WI PHOSPHOROUS INORGANIC (PHOSPHATE)	$24.73	$39.00	Jun 27, 2026 source file
Gundersen St Josephs Hospital and Clinics Hillsboro · La Crosse-Onalaska, WI-MN PHOSPHOROUS INORGANIC (PHOSPHATE)	$26.30	$50.00	Jun 27, 2026 source file
Gundersen Moundview Hospital and Clinics Friendship · Friendship, WI PHOSPHOROUS INORGANIC (PHOSPHATE)	$26.92	$53.00	Jun 27, 2026 source file
Westfields Hospital New Richmond · Minneapolis-St. Paul-Bloomington, MN-WI Chemistry	$28.40	$54.00	— source file
St Nicholas Hospital of the Hospital Sisters of the Third Order of St Francis Sheboygan · Sheboygan, WI HC PHOSPHORUS	$29.04	$44.00	— source file
St Vincent Hospital of the Hospital Sisters of the Third Order of St Francis Green Bay · Green Bay, WI HC PHOSPHORUS	$29.04	$44.00	— source file
St Clare Memorial Hospital Oconto Falls · Green Bay, WI HC PHOSPHORUS	$29.04	$44.00	— source file
St Marys Hospital Medical Center Green Bay · Green Bay, WI HC PHOSPHORUS	$29.04	$44.00	— source file
Orthopaedic Hospital of Wisconsin Glendale · Milwaukee-Waukesha, WI PHOSPHORUS SERUM	$29.68	$56.00	— source file
Ascension Columbia St. Mary's Hospital - Milwaukee Campus Milwaukee · Milwaukee-Waukesha, WI HC ASSAY OF PHOSPHORUS	$38.16	$72.00	— source file
Ascension Columbia St. Mary's Hospital - Ozaukee Campus Mequon · Milwaukee-Waukesha, WI HC ASSAY OF PHOSPHORUS	$38.16	$72.00	— source file
Aspirus Divine Savior Hospital Portage · Madison, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Eagle River Hospital Eagle River · Eagle River, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Langlade Hospital Antigo · Antigo, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Medford Hospital Medford · Medford, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Merrill Hospital Merrill · Merrill, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Plover Hospital Stevens Point · Stevens Point-Plover, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Rhinelander Hospital Rhinelander · Rhinelander, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Stanley Hospital Stanley · Eau Claire, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Stevens Point Hospital Stevens Point · Stevens Point-Plover, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Tomahawk Hospital Tomahawk · Tomahawk, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Wausau Hospital Wausau · Wausau, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Aspirus Wisconsin Rapids Hospital Wisconsin Rapids · Wisconsin Rapids-Marshfield, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Howard Young Medical Center Woodruff · Woodruff, WI Fac Assay of Phosphorus	$41.60	$64.00	Apr 1, 2026 source file
Marshfield Medical Center - Marshfield Marshfield · Wisconsin Rapids-Marshfield, WI PHOSPHORUS ASSAY-TECH	$44.65	$47.00	Feb 20, 2026 source file
Children's Hospital of Wisconsin Milwaukee · Milwaukee-Waukesha, WI HBC PHOSPHATE BLOOD	$45.51	$82.75	Mar 23, 2026 source file
Marshfield Medical Center - Eau Claire Eau Claire · Eau Claire, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - Ladysmith Ladysmith · Ladysmith, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - Minocqua Minocqua · Minocqua, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - Neillsville Neillsville · Neillsville, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - Park Falls Park Falls · Park Falls, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - Rice Lake Rice Lake · Rice Lake, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - River Region at Stevens Point Stevens Point · Stevens Point-Plover, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
Marshfield Medical Center - Weston Weston · Wausau, WI PHOSPHORUS ASSAY-TECH	$46.55	$49.00	Feb 20, 2026 source file
PAM Rehabilitation Hospital of Wausau Wausau · Wausau, WI Phosphorus	$47.40	$47.40	Aug 6, 2026 source file
Aurora BayCare Medical Center Green Bay · Green Bay, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Lakeland Medical Center Elkhorn · Whitewater-Elkhorn, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Bay Area Marinette · Marinette, WI-MI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Burlington Burlington · Racine-Mount Pleasant, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Fond du Lac Fond Du Lac · Fond du Lac, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Grafton Grafton · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Kenosha Kenosha · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Manitowoc Two Rivers · Manitowoc, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Mount Pleasant Mount Pleasant · Racine-Mount Pleasant, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Oshkosh Oshkosh · Oshkosh-Neenah, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Sheboygan County Sheboygan · Sheboygan, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Summit Summit · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Medical Center Washington County Hartford · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora Psychiatric Hospital Wauwatosa · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora St Lukes Medical Center Milwaukee · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora St Lukes Medical Center of Aurora Health Care Metro Milwaukee · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora St. Luke's South Shore of Aurora Health Care Metro Cudahy · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Aurora West Allis Medical Center West Allis · Milwaukee-Waukesha, WI PHOSPHORUS	$47.50	$95.00	Nov 21, 2025 source file
Stoughton Hospital Stoughton · Madison, WI Phosphate level	$49.10	$89.28	Jun 11, 2026 source file
Froedtert Pleasant Prairie Hospital Pleasant Prairie · Kenosha, WI Lab - Phosphate Level in Blood	$50.47	$67.29	— source file
Southwest Health Center Platteville · Platteville, WI LCHG PHOSPHORUS BLOOD	$51.00	$68.00	Mar 27, 2026 source file
Hudson Hospital Hudson · Minneapolis-St. Paul-Bloomington, MN-WI Chemistry	$52.33	$116.00	— source file
Mercyhealth Hospital & Medical Center - Walworth Lake Geneva · Whitewater-Elkhorn, WI CHG ASSAY OF PHOSPHORUS INORGANIC	$53.72	$71.62	Mar 1, 2026 source file
Tomah Memorial Hospital Tomah · Sparta, WI Phosphate level	$53.76	$93.50	Jun 30, 2026 source file
Essentia Health St Marys Hospital-Superior Superior · Duluth, MN-WI PHOSPHORUS	$53.95	$73.00	Jan 1, 2026 source file
Black River Memorial Hospital Black River Falls · Black River Falls, WI PHOSPHORUS	$59.40	$66.00	Jan 8, 2026 source file
Mercyhealth Hospital & Trauma Center Janesville · Janesville-Beloit, WI CHG ASSAY OF PHOSPHORUS INORGANIC	$63.42	$84.56	Mar 1, 2026 source file
UnityPoint Health - Meriter Madison · Madison, WI HC PHOSPHATE	$64.28	$80.35	Jan 28, 2026 source file
Marshfield Medical Center - Beaver Dam Beaver Dam · Beaver Dam, WI PHOSPHORUS ASSAY-TECH	$74.10	$78.00	Feb 20, 2026 source file
Spooner Health System Spooner · Spooner, WI PO4 INORGANIC (PHOSPHATE) - REF	$77.40	$86.00	— source file
Edgerton Hospital and Health Services Edgerton · Janesville-Beloit, WI LCHG PHOSPHORUS BLOOD	$83.22	$114.00	— source file
Crossing Rivers Health Medical Center Prairie Du Chien · Prairie Du Chien, WI Phosphate level	$89.00	$89.00	Jul 23, 2026 source file
Vernon Memorial Healthcare Viroqua · La Crosse-Onalaska, WI-MN PHOSPHOROUS INORGANIC (PHOSPHATE)	$95.00	$95.00	— source file
Cumberland Memorial Hospital Cumberland · Rice Lake, WI PHOSPHORUS	$104.05	$104.05	— source file
Tamarack Health Hayward Medical Center Hayward · Hayward, WI Assay of Phosphorus	$121.30	$127.68	— source file
AdventHealth Durand Durand · Durand, WI HC PHOSPHORUS	$215.00	$215.00	Apr 1, 2026 source file

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

File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.

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

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro area	Hospitals	Lowest	Median
Milwaukee-Waukesha, WI	17	$19.08	$47.50
Green Bay, WI	5	$13.89	$29.04
Oshkosh-Neenah, WI	5	$15.39	$19.32
Appleton, WI	4	$15.39	$19.32
Eau Claire, WI	3	$24.39	$41.60
Madison, WI	3	$41.60	$49.10
Minneapolis-St. Paul-Bloomington, MN-WI	3	$15.96	$28.40
Platteville, WI	3	$21.44	$23.18
Stevens Point-Plover, WI	3	$41.60	$41.60
Wausau, WI	3	$41.60	$46.55
Fond du Lac, WI	2	$19.32	$33.41
Janesville-Beloit, WI	2	$63.42	$73.32
La Crosse-Onalaska, WI-MN	2	$26.30	$60.65
Racine-Mount Pleasant, WI	2	$47.50	$47.50
Rice Lake, WI	2	$46.55	$75.30
Sheboygan, WI	2	$29.04	$38.27
Whitewater-Elkhorn, WI	2	$47.50	$50.61
Wisconsin Rapids-Marshfield, WI	2	$41.60	$43.12
Antigo, WI	1	$41.60	$41.60
Ashland, WI	1	$21.53	$21.53
Berlin, WI	1	$19.32	$19.32
Black River Falls, WI	1	$59.40	$59.40
Brookfield, WI	1	$19.08	$19.08
Beaver Dam, WI	1	$74.10	$74.10
Durand, WI	1	$215.00	$215.00
Duluth, MN-WI	1	$53.95	$53.95
Eagle River, WI	1	$41.60	$41.60
East Amery, WI	1	$23.46	$23.46
Friendship, WI	1	$26.92	$26.92
Hayward, WI	1	$121.30	$121.30
Kenosha, WI	1	$50.47	$50.47
Ladysmith, WI	1	$46.55	$46.55
Medford, WI	1	$41.60	$41.60
Merrill, WI	1	$41.60	$41.60
Minocqua, WI	1	$46.55	$46.55
Manitowoc, WI	1	$47.50	$47.50
Marinette, WI-MI	1	$47.50	$47.50
Neillsville, WI	1	$46.55	$46.55
New London, WI	1	$19.32	$19.32
Park Falls, WI	1	$46.55	$46.55
Prairie Du Chien, WI	1	$89.00	$89.00
Rhinelander, WI	1	$41.60	$41.60
Spooner, WI	1	$77.40	$77.40
Shawano, WI	1	$19.32	$19.32
Sparta, WI	1	$53.76	$53.76
Tomahawk, WI	1	$41.60	$41.60
Waupaca, WI	1	$19.32	$19.32
Whitehall, WI	1	$24.73	$24.73
Wild Rose, WI	1	$19.32	$19.32
Woodruff, WI	1	$41.60	$41.60

Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.

Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.

Lowest The lowest cash price among those hospitals.

Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More

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.

Phosphorus (phosphate) blood test in other states

Median cash price across the state's hospitals.