BUN test cost in Chicago, IL
In Chicago-Naperville-Elgin, IL-IN, 58 hospitals list a cash price for blood urea nitrogen (BUN) test: from $3.50 to $156.00, with a median of $37.50. The lowest listed price is at Uchicago Medicine AdventHealth Bolingbrook and 3 other hospitals — $34.00 less than the median here. Across Illinois, the median is $52.00 at 110 hospitals.
Cash prices at 58 facilities across 42 cities for code 84520, as an outpatient — the setting a self-pay patient normally buys. Collected Oct 2, 2026; the hospital files themselves were last updated between Mar 17, 2025 and Sep 29, 2026.
Lowest$3.50Uchicago Medicine AdventHealth Bolingbrook + 3 more
Median$37.50half of hospitals charge less
Highest$156.00in this market
Difference44.6×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 Chicago-Naperville-Elgin, IL-IN.
median
Lowest $3.50Highest $158.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC BLOOD UREA NITROGEN - BUN+3 more lines at this price File of Apr 1, 2026 · source file | $3.50 | $14.00 | — | 75% |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC BLOOD UREA NITROGEN - BUN+3 more lines at this price File of Apr 1, 2026 · source file | $3.50 | $14.00 | — | 75% |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC UREA NITROGEN BODY FLUID+3 more lines at this price File of Apr 1, 2026 · source file | $3.50 | $14.00 | — | 75% |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC BUN - LIVER FIBROSIS CHRONIC VIRAL HEPATITIS FIBROMETER PANEL - ARUP+3 more lines at this price File of Apr 1, 2026 · source file | $3.50 | $14.00 | — | 75% |
| Roseland Community Hospital Chicago, IL · (773) 995-3000 Urea nitrogen level to assess kidney function, quantitative File of Jul 1, 2026 · source file | $5.50 | $66.00 | $3.67–$72.60 | 92% |
| John H. Stroger, Jr. Hospital Chicago, IL · (312) 864-6000 UREA NITROGEN QUANTITATIVE source file | $7.00 | $10.00 | $1.11–$10.63 | 30% |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC BUN-BLOOD UREA NITROGEN+3 more lines at this price source file | $10.89 | $33.00 | $1.08–$16.35 | 67% |
| Gottlieb Memorial Hospital Melrose Park, IL · (708) 681-3200 Urea Nitrogen, Qt (Bun) File of Mar 31, 2026 · source file | $12.54 | $66.00 | $28.12–$55.31 | 81% |
| MacNeal Hospital Berwyn, IL · (708) 783-9100 Urea Nitrogen, Qt (Bun) File of Mar 31, 2026 · source file | $12.54 | $66.00 | $12.54–$91.41 | 81% |
| Community First Medical Center Chicago, IL · (773) 282-7000 Urea nitrogen level to assess kidney function, quantitative File of Apr 1, 2026 · source file | $13.63 | $27.25 | $1.08–$33.00 | 50% |
| Humboldt Park Health Chicago, IL · (773) 292-8200 Urea nitrogen level to assess kidney function, quantitative File of Sep 29, 2026 · source file | $14.70 | $52.50 | $17.33–$55.13 | 72% |
| Loyola University Medical Center Maywood, IL · (708) 216-9000 Urea Nitrogen, Qt (Bun) File of Mar 31, 2026 · source file | $15.18 | $66.00 | $33.00–$69.56 | 77% |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Urea Nitrogen; Quan 414 source file | $17.47 | $82.00 | $3.12–$109.00 | 79% |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Urea Nitrogen; Quan 414 source file | $22.14 | $82.00 | $3.54–$109.00 | 73% |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Urea Nitrogen; Quan 413 source file | $23.64 | $111.00 | $3.12–$109.00 | 79% |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 Urea Nitrogen; Quan 414+1 more line at this price source file | $24.70 | $69.00 | $3.54–$55.20 | 64% |
| La Rabida Children's Hospital Chicago, IL · (773) 363-6700 AFT BUN - STAT+1 more line at this price File of Apr 1, 2026 · source file | $25.98 | $25.98 | — | — |
| Advocate South Suburban Hospital Hazel Crest, IL POC NITROGEN SERUM File of Nov 4, 2025 · source file | $27.50 | $55.00 | $3.95–$53.57 | 50% |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 POC NITROGEN SERUM File of Nov 4, 2025 · source file | $27.50 | $55.00 | $3.95–$44.77 | 50% |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Urea Nitrogen; Quan 413 source file | $29.97 | $111.00 | $3.54–$109.00 | 73% |
| Shriners Childrens - Chicago Chicago, IL · (773) 622-5400 ASSAY OF UREA NITROGEN source file | $33.90 | $33.90 | $3.51–$7.65 | — |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Urea Nitrogen; Quan 414+1 more line at this price source file | $35.86 | $139.00 | $139.00 | 74% |
| Morris Hospital Morris, IL · (815) 942-2932 Urea nitrogen level to assess kidney function, quantitative File of Jun 30, 2026 · source file | $36.33 | $151.00 | $3.95–$128.35 | 76% |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$60.00 | 50% |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$60.00 | 50% |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$60.00 | 50% |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$60.00 | 50% |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$66.75 | 50% |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$60.00 | 50% |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$60.00 | 50% |
| Advocate South Suburban Hospital Hazel Crest, IL BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$73.05 | 50% |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$66.75 | 50% |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$67.50 | 50% |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 BUN File of Nov 4, 2025 · source file | $37.50 | $75.00 | $3.95–$61.05 | 50% |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 Blood Urea Nitrogen+1 more line at this price File of Apr 1, 2026 · source file | $39.69 | $147.00 | $3.48–$123.48 | 73% |
| Northwestern Memorial Hospital Chicago, IL · (312) 926-2000 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $11.83–$61.00 | 30% |
| Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $4.21–$61.00 | 30% |
| Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $11.77–$61.00 | 30% |
| Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $10.13–$61.00 | 30% |
| Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $9.76–$61.00 | 30% |
| Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $9.09–$61.00 | 30% |
| Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $11.59–$61.00 | 30% |
| Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Metabolic Panel, Urea Nitrogen (Q) File of Apr 1, 2026 · source file | $42.70 | $61.00 | $11.16–$61.00 | 30% |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Urea Niitrogen, Quantitative-Laf File of Apr 1, 2026 · source file | $43.00 | $43.00 | — | — |
| Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $10.24–$64.00 | 30% |
| Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $12.35–$64.00 | 30% |
| Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $9.54–$64.00 | 30% |
| Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $12.16–$64.00 | 30% |
| Northwestern Memorial Hospital Chicago, IL · (312) 926-2000 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $12.42–$64.00 | 30% |
| Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $10.62–$64.00 | 30% |
| Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $4.42–$64.00 | 30% |
| Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Liver Fibrosis Panel, Urea Nitrogen (Arup) File of Apr 1, 2026 · source file | $44.80 | $64.00 | $11.71–$64.00 | 30% |
| Northwestern Memorial Hospital Chicago, IL · (312) 926-2000 HB Ref Preeclampsia Monitoring Profile, Urea Nitrogen (Lc) File of Apr 1, 2026 · source file | $45.50 | $65.00 | $15.21–$65.00 | 30% |
| Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Preeclampsia Monitoring Profile, Urea Nitrogen (Lc) File of Apr 1, 2026 · source file | $45.50 | $65.00 | $4.49–$65.00 | 30% |
| Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Preeclampsia Monitoring Profile, Urea Nitrogen (Lc) File of Apr 1, 2026 · source file | $45.50 | $65.00 | $9.69–$65.00 | 30% |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 Urea Nitrogen (Body Fluid) SO File of Mar 17, 2025 · source file | $47.41 | $139.43 | $3.83–$90.63 | 66% |
| Edward Hospital Naperville, IL · (630) 527-3000 HC UREA NITROGEN QUANTITATIVE File of Apr 1, 2026 · source file | $52.00 | $52.00 | — | — |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC UREA NITROGEN QUANTITATIVE+1 more line at this price File of Apr 1, 2026 · source file | $52.00 | $52.00 | — | — |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 Blood Urea Nitrogen+1 more line at this price File of Mar 17, 2025 · source file | $53.29 | $156.74 | $3.83–$101.88 | 66% |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 Blood Urea Nitrogen File of Mar 17, 2025 · source file | $53.29 | $156.74 | $3.83–$101.88 | 66% |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Urea Nitrogen (Bun)* (P)+1 more line at this price source file | $57.20 | $88.00 | $11.88–$48.05 | 35% |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Bun Post Dialysis*+1 more line at this price source file | $57.20 | $88.00 | $11.88–$48.05 | 35% |
| Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $12.52–$84.00 | 30% |
| Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $13.94–$84.00 | 30% |
| Northwestern Memorial Hospital Chicago, IL · (312) 926-2000 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $16.30–$84.00 | 30% |
| Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $5.80–$84.00 | 30% |
| Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $15.37–$84.00 | 30% |
| Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $13.44–$84.00 | 30% |
| Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $16.21–$84.00 | 30% |
| Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Urea Nitrogen Assay File of Apr 1, 2026 · source file | $58.80 | $84.00 | $15.96–$84.00 | 30% |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC UREA NITROGEN; QUANTITATIVE File of Apr 1, 2026 · source file | $60.00 | $60.00 | — | — |
| Edward Hospital Naperville, IL · (630) 527-3000 HC UREA NITROGEN; QUANTITATIVE File of Apr 1, 2026 · source file | $60.00 | $60.00 | — | — |
| Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $63.70 | $91.00 | $14.56–$91.00 | 30% |
| Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $66.50 | $95.00 | $14.16–$95.00 | 30% |
| Mercyhealth Crystal Lake Hospital & Medical Center Crystal Lake, IL · (792) 220-5500 CHG ASSAY OF UREA NITROGEN QUANTITATIVE File of Mar 1, 2026 · source file | $71.12 | $94.82 | — | 25% |
| Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $74.90 | $107.00 | $19.58–$107.00 | 30% |
| Mercyhealth Hospital & Medical Center - Harvard Harvard, IL · (815) 943-5431 CHG ASSAY OF UREA NITROGEN QUANTITATIVE File of Mar 1, 2026 · source file | $75.32 | $100.42 | — | 25% |
| Methodist Hospital-Southlake Merrillville, IN · (219) 886-4000 BUN source file | $79.10 | $113.00 | $3.95–$100.57 | 30% |
| The Methodist Hospitals Gary, IN · (219) 886-4000 BUN source file | $79.10 | $113.00 | $3.95–$100.57 | 30% |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Assay Of Urea Nitrogen File of Apr 1, 2026 · source file | $83.00 | $83.00 | — | — |
| Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $84.00 | $120.00 | $23.16–$120.00 | 30% |
| Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $84.00 | $120.00 | $19.92–$120.00 | 30% |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB BUN POST DIALYSIS*+1 more line at this price File of Apr 1, 2026 · source file | $88.00 | $88.00 | — | — |
| Endeavor Health Highland Park Hospital Highland Park, IL HB BUN POST DIALYSIS*+1 more line at this price File of Apr 1, 2026 · source file | $88.00 | $88.00 | — | — |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB UREA NITROGEN (BUN)* (P)+1 more line at this price File of Apr 1, 2026 · source file | $88.00 | $88.00 | — | — |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H ASSAY OF UREA NITROGEN QUANTITATIVE+2 more lines at this price source file | $96.60 | $138.00 | $23.46–$8,500.00 | 30% |
| Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $97.30 | $139.00 | $26.41–$139.00 | 30% |
| Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $109.20 | $156.00 | $10.76–$156.00 | 30% |
| Northwestern Memorial Hospital Chicago, IL · (312) 926-2000 HB Urea Nitrogen Assay File of Apr 1, 2026 · source file | $109.20 | $156.00 | $12.61–$156.00 | 30% |
| Jackson Park Hospital Foundation Chicago, IL · (773) 947-7500 BUN source file | $117.88 | $147.35 | — | 20% |
| Vista Medical Center East Waukegan, IL · (847) 360-3000 UREA NITROGEN,QUAN source file | $127.26 | $127.26 | $3.95–$17.94 | — |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Urea Nitrogen Quantiative, Urine+1 more line at this price File of Apr 1, 2026 · source file | $156.00 | $156.00 | — | — |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Urea Nitrogen Quantiative, Urine+1 more line at this price File of Apr 1, 2026 · source file | $158.00 | $158.00 | — | — |
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
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
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
Outpatient: lowest $3.50, median $37.50, highest $156.00 — a 44.6× difference within the same market.
As an inpatient, the same code is billed by 39 facilities here, median $37.50. 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 38 of 42 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 4 it is 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 BUN test measures urea nitrogen, a waste product removed by the kidneys. It is used with creatinine to check kidney function and hydration.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
7 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84520 ($33.60). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Hospital | Cash price | File |
|---|---|---|
| Loyola University Medical Center Maywood, ILEwc - Lab Bun | $0.01 | file |
| Gottlieb Memorial Hospital Melrose Park, ILEwc - Lab Bun | $0.01 | file |
| Saint Francis Hospital Evanston, ILHC ASSAY UREA NITROGEN, QUAN | $3.00 | file |
| Mercy Medical Center Aurora, ILBLOOD UREA NITROGEN | $3.00 | file |
| Mercy Medical Center Aurora, ILBLOOD UREA NITROGEN, BODY FLD | $3.00 | file |
| Saint Joseph Medical Center - Joliet Joliet, ILBLOOD UREA NITROGEN, BODY FLD | $3.00 | file |
| Saint Joseph Medical Center - Joliet Joliet, ILBLOOD UREA NITROGEN | $3.00 | file |
File Link to the hospital's own price file.