What does code 84591 cost?

Across the published hospital price files, the disclosed cash price for 84591 ranges from $15.96 to $220. This is public hospital price transparency data, not a guaranteed estimate of your bill.

Will this be my final bill?

Actual patient responsibility may vary based on your insurance plan, deductible, coinsurance, network status, diagnosis, setting, bundled services, clinical circumstances, and hospital billing practices.

84591 is the billing code hospitals use to identify "HC VITAMIN B3 (NIACIN)" on their published price files. We use it to line up the same service across different hospitals.

Why do prices for this code differ between hospitals?

Each hospital sets its own prices and negotiates separately with each insurer, so the disclosed price for the same code can vary widely from one hospital to another — and even between plans at a single hospital. Comparing the published figures is what this page is for; a difference does not by itself mean one hospital is better or worse.

What this page is not

It is not a quote, a guarantee, or medical advice. It shows what hospitals have published for this code, so you can compare and ask informed questions — your actual cost depends on your insurance, the exact services performed, and the care setting.

84591

HCPCS

HC VITAMIN B3 (NIACIN)

Verified from hospital fileNot a bill estimate

iDirect answer

Based on the latest published hospital price files, code 84591 (HC VITAMIN B3 (NIACIN)) appears at 44 hospitals with disclosed cash prices from $15.96 to $220. This is public hospital price transparency data, not a guaranteed estimate of your bill.

Published-price availability

hospitals publish a price

list this service without a published price

Cash

List

Negotiated

Allowed

A blank price (“—”) means a hospital names this service but did not publish a dollar amount — it is not a free service or a $0 price.

Compare 84591 prices

Filter by hospital, city, setting, or payer — the summary and charts update with your filters.

Based on hospital-published prices verified from each hospital’s own file. Coverage expands as data is verified.

Published cash prices for code 84591 vary by about 14× across the 41 hospitals with disclosed prices here — from $15.96 to $220. Shopping around can matter.

Hospitals

Prices shown

$15.96

Lowest cash

$220

Highest cash

code 84591 cash price73 disclosed · 41 hospitals

$15.96median ~$106$220

Lowest cash price by hospital

Deaconess Illinois Medical Center$15.96
Stanford Health Care$24.00
Stanford Health Care Tri-Valley$32.00
Elkhart General Hospital$36.40
Froedtert Holy Family Memorial Hospital$64.35
Advocate South Suburban Hospital$67.50

Cash price by city

Reflects your current filters.

Cash price by city$15.96 – $163

Marion · 1 hospital$15.96
Stanford · 1 hospital$24.00–$60.00
Pleasanton · 1 hospital$32.00–$39.20
Elkhart · 1 hospital$36.40
Manitowoc · 1 hospital$64.35
Hazel Crest · 1 hospital$67.50–$163

78 prices shown.

Service	Hospital	Code	List price	Cash price	Negotiated range	Allowed (median)
HC VITAMIN B3 (NIACIN) Inpatient & outpatient	Endeavor Health Edward Hospital	84591 HCPCS	$220	$220	—	—
Assay Of Nos Vitamin Outpatient	Endeavor Health Edward Hospital	84591 HCPCS	—	—	$17.06 – $28.91	—
Hc Vitamin B3 And Metabolites Inpatient & outpatient	University of Chicago Medical Center	84591 HCPCS	—	—	—	—
Assay Of Nos Vitamin Outpatient	University of Chicago Medical Center	84591 HCPCS	—	—	—	—
VITAMIN B5 PANTOTHENIC ACID Outpatient	Advocate South Suburban Hospital	84591 CPT	$135	$67.50	$17.06 – $131	—
VITAMIN, B7 (BIOTIN) Outpatient	Advocate South Suburban Hospital	84591 CPT	$325	$163	$17.06 – $317	—
VITAMIN B3 (NIACIN) Outpatient	Advocate South Suburban Hospital	84591 CPT	$325	$163	$17.06 – $317	—
Vitamin B3 (Niacin+Metabolite) Inpatient	Memorial Hospital of South Bend	84591 CPT	$215	$140	$43.00 – $176	—
Vitamin B3 (Niacin+Metabolite) Inpatient	Elkhart General Hospital	84591 CPT	$56.00	$36.40	$11.20 – $72.80	—
HC BIOTIN VITAMIN B7 ASSAY Outpatient	Froedtert Menomonee Falls Hospital	84591 CPT	$227	$125	$17.06 – $204	—
HC VITAMIN B3 ASSAY Outpatient	Froedtert Menomonee Falls Hospital	84591 CPT	$168	$92.40	$17.06 – $151	—
VITAMIN B3 (NIACIN) Inpatient	Aurora BayCare Medical Center	84591 CPT	$325	$163	$195 – $276	—
VITAMIN, B7 (BIOTIN) Inpatient	Aurora BayCare Medical Center	84591 CPT	$325	$163	$195 – $276	—
VITAMIN B5 PANTOTHENIC ACID Inpatient	Aurora BayCare Medical Center	84591 CPT	$160	$80.00	$96.00 – $136	—
VITAMIN B5 PANTOTHENIC ACID Inpatient	Aurora Medical Center Burlington	84591 CPT	$160	$80.00	$96.00 – $136	—
VITAMIN B3 (NIACIN) Inpatient	Aurora Medical Center Burlington	84591 CPT	$325	$163	$195 – $276	—
Biotin, Serum Inpatient	Munson Healthcare Charlevoix Hospital	84591 CPT	$169	$144	$135 – $169	—
Vitamin B3 and Metabolites, Plasma Inpatient	Munson Healthcare Charlevoix Hospital	84591 CPT	$160	$136	$128 – $160	—
Vitamin B5 (Pantothenic Acid) Bioassay Inpatient	Munson Healthcare Charlevoix Hospital	84591 CPT	$85.00	$72.25	$68.00 – $85.00	—
Vitamin B7, H (Biotin) Inpatient	Munson Healthcare Charlevoix Hospital	84591 CPT	$110	$93.50	$88.00 – $110	—
Vitamin B3 and Metabolites, Plasma Inpatient	Munson Healthcare Manistee Hospital	84591 CPT	$160	$136	$80.15 – $852	—
Vitamin B5 (Pantothenic Acid) Bioassay Inpatient	Munson Healthcare Manistee Hospital	84591 CPT	$85.00	$72.25	$42.64 – $852	—
VITAMIN, B7 (BIOTIN) Inpatient	Aurora Medical Center Bay Area	84591 CPT	$325	$163	$195 – $275	—
VITAMIN B3 (NIACIN) Inpatient	Aurora Medical Center Bay Area	84591 CPT	$325	$163	$195 – $275	—
VITAMIN B3 (NIACIN) Inpatient	Aurora Medical Center Fond du Lac	84591 CPT	$325	$163	$195 – $276	—

How to read these prices

Cash price: The discounted self-pay price for paying directly, without insurance.
List price: The hospital’s full undiscounted charge — rarely what anyone pays.
Negotiated rate: A rate for a specific insurer and plan; your share depends on your benefits.
Allowed amount: A historical reference for what was actually allowed, where disclosed.

Hospitals that publish 84591 prices

Open a hospital to see this code in the context of its full published prices.

Endeavor Health Edward Hospital University of Chicago Medical Center Advocate South Suburban Hospital Memorial Hospital of South Bend Elkhart General Hospital Froedtert Menomonee Falls Hospital Aurora BayCare Medical Center Aurora Medical Center Burlington Munson Healthcare Charlevoix Hospital Munson Healthcare Manistee Hospital Aurora Medical Center Bay Area Aurora Medical Center Fond du Lac Aurora Medical Center Grafton Aurora Medical Center Kenosha Aurora Lakeland Medical Center Froedtert West Bend Hospital Froedtert Holy Family Memorial Hospital Froedtert Community Hospital - Mequon Froedtert Community Hospital - New Berlin Froedtert Community Hospital - Oak Creek Kalkaska Memorial Health Center Paul Oliver Memorial Hospital Munson Healthcare Grayling Munson Healthcare Cadillac Munson Medical Center The Women's Hospital Deaconess Illinois Medical Center Providence Alaska Medical Center Providence Kodiak Island Medical Center Stanford Health Care Stanford Health Care Tri-Valley Providence Seward Hospital Providence Valdez Medical Center Petaluma Valley Hospital Queen of The Valley Medical Center Redwood Memorial Hospital Providence St Joseph Hospital Eureka Santa Rosa Memorial Hospital Texas Health Center for Diagnostics and Surgery Plano Providence Mission Hospital - Mission Viejo Providence St Joseph Hospital Orange St Jude Medical Center St Mary Medical Center Providence St Joseph Medical Center

Code 84591: frequently asked

What does code 84591 cost?: Across the published hospital price files, the disclosed cash price for 84591 ranges from $15.96 to $220. This is public hospital price transparency data, not a guaranteed estimate of your bill.
Will this be my final bill?: Actual patient responsibility may vary based on your insurance plan, deductible, coinsurance, network status, diagnosis, setting, bundled services, clinical circumstances, and hospital billing practices.
What is code 84591?: 84591 is the billing code hospitals use to identify "HC VITAMIN B3 (NIACIN)" on their published price files. We use it to line up the same service across different hospitals.
Why do prices for this code differ between hospitals?: Each hospital sets its own prices and negotiates separately with each insurer, so the disclosed price for the same code can vary widely from one hospital to another — and even between plans at a single hospital. Comparing the published figures is what this page is for; a difference does not by itself mean one hospital is better or worse.
What this page is not: It is not a quote, a guarantee, or medical advice. It shows what hospitals have published for this code, so you can compare and ask informed questions — your actual cost depends on your insurance, the exact services performed, and the care setting.

All CPT / HCPCS codes Browse hospitals How to read this data