Magnesium test cost in Kansas City, MO
In Kansas City, MO-KS, 19 hospitals list a cash price for magnesium blood test: from $4.64 to $610.05, with a median of $62.30. The lowest listed price is at NKC Health — $57.66 less than the median here. Across Missouri, the median is $47.57 at 64 hospitals.
- The median here, $62.30, is 50% above the US median of $41.60.
- That is 9.3× Medicare's 2026 national rate for the same service ($6.70).
- Kansas City, MO ranks 2nd of 2 metro areas in Missouri by median, cheapest first.
- 9 of 19 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 19 facilities across 14 cities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Oct 23, 2026; the hospital files themselves were last updated between Mar 6, 2026 and Sep 1, 2026.
Lowest$4.64NKC Health
Median$62.30half of hospitals charge less
Highest$610.05in this market
Difference131.5×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 Kansas City, MO-KS.
median
Lowest $4.64Highest $646.26
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| NKC Health lowest North Kansas City, MO · (816) 691-2000 SR MG URINE File of Mar 6, 2026 · source file | $4.64 | $16.00 | $6.21–$17.75 | 71% |
| St Joseph Medical Center Kansas City, MO · (816) 942-4400 Hc Assay Of Magnesium File of Mar 17, 2026 · source file | $6.00 | $359.13 | $6.03–$359.13 | 98% |
| Providence Medical Center Kansas City, KS · (913) 596-4000 Hc Assay Of Magnesium File of Mar 17, 2026 · source file | $6.00 | $155.93 | $6.70–$144.08 | 96% |
| Saint John Hospital Leavenworth, KS · (913) 680-6000 Hc Assay Of Magnesium File of Mar 17, 2026 · source file | $6.00 | $122.78 | $6.70–$98.22 | 95% |
| Ascentist Hospital Leawood, KS · (913) 529-1801 MAGNESIUM File of Apr 26, 2026 · source file | $12.06 | $40.00 | $11.12–$14.41 | 70% |
| Liberty Hospital Liberty, MO · (816) 781-7200 RBC MAGNESIUM +3 more lines at this price File of Jul 9, 2026 · source file | $34.00 | $123.00 | $34.32–$100.37 | 72% |
| NKC Health North Kansas City, MO · (816) 691-2000 MAGNESIUM LEVEL File of Mar 6, 2026 · source file | $34.51 | $119.00 | $6.21–$97.34 | 71% |
| Children's Mercy Hospital Kansas Overland Park, KS · (913) 696-8000 MAGNESIUM URINE+2 more lines at this price File of Apr 1, 2026 · source file | $37.92 | $79.00 | $6.03–$71.10 | 52% |
| Children's Mercy Hospital Kansas City, MO · (816) 234-3000 URINE SAT PANEL MAGNESIUM+2 more lines at this price File of Apr 1, 2026 · source file | $37.92 | $79.00 | $7.04–$71.10 | 52% |
| NKC Health North Kansas City, MO · (816) 691-2000 MAGNESIUM OTHER File of Mar 6, 2026 · source file | $42.05 | $145.00 | $6.21–$118.61 | 71% |
| Research Medical Center Kansas City, MO · (816) 276-4000 MAGNESIUM RBC File of Sep 1, 2026 · source file | $55.20 | $55.20 | $7.18–$55.20 | — |
| Cass Regional Medical Center Harrisonville, MO · (816) 380-5888 Magnesium+4 more lines at this price File of Apr 7, 2026 · source file | $62.30 | $89.00 | $6.70–$86.24 | 30% |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 URINE MAGNESIUM File of Apr 20, 2026 · source file | $70.42 | $100.59 | $6.70–$85.50 | 30% |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 MAGNESIUM File of Apr 20, 2026 · source file | $107.52 | $153.59 | $6.70–$130.55 | 30% |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 MAGNESIUM RBC File of Apr 20, 2026 · source file | $113.54 | $162.20 | $6.70–$137.87 | 30% |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP+5 more lines at this price File of Apr 1, 2026 · source file | $185.01 | $185.01 | — | — |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC MAGNESIUM LEVEL+5 more lines at this price File of Apr 1, 2026 · source file | $185.01 | $185.01 | — | — |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC File of Apr 1, 2026 · source file | $222.26 | $222.26 | — | — |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC File of Apr 1, 2026 · source file | $222.26 | $222.26 | — | — |
| Menorah Medical Center Overland Park, KS · (913) 498-6000 MAGNESIUM BLD File of Sep 1, 2026 · source file | $240.63 | $240.63 | $31.28–$192.50 | — |
| Lafayette Regional Health Center Lexington, MO · (660) 259-2203 MAGNESIUM BLD File of Sep 1, 2026 · source file | $254.91 | $254.91 | $47.41–$254.91 | — |
| Lafayette Regional Health Center Lexington, MO · (660) 259-2203 MAGNESIUM URINE+1 more line at this price File of Sep 1, 2026 · source file | $267.28 | $267.28 | $49.71–$267.28 | — |
| Belton Regional Medical Center Kansas City, MO · (816) 348-1200 MAGNESIUM BLD File of Sep 1, 2026 · source file | $284.80 | $284.80 | $37.02–$256.32 | — |
| Research Medical Center Kansas City, MO · (816) 276-4000 MAGNESIUM URINE+1 more line at this price File of Sep 1, 2026 · source file | $390.80 | $390.80 | $50.80–$390.80 | — |
| Overland Park Regional Medical Center Olathe, KS · (913) 541-5000 MAGNESIUM BLD File of Sep 1, 2026 · source file | $395.87 | $395.87 | $51.46–$296.90 | — |
| Lee's Summit Medical Center Lee's Summit, MO · (816) 282-5000 MAGNESIUM OTHER+1 more line at this price File of Sep 1, 2026 · source file | $397.21 | $397.21 | $51.64–$337.63 | — |
| Belton Regional Medical Center Kansas City, MO · (816) 348-1200 MAGNESIUM OTHER+1 more line at this price File of Sep 1, 2026 · source file | $406.49 | $406.49 | $52.84–$365.84 | — |
| Research Medical Center Kansas City, MO · (816) 276-4000 MAGNESIUM BLD File of Sep 1, 2026 · source file | $407.71 | $407.71 | $53.00–$407.71 | — |
| Lee's Summit Medical Center Lee's Summit, MO · (816) 282-5000 MAGNESIUM BLD File of Sep 1, 2026 · source file | $439.44 | $439.44 | $57.13–$373.52 | — |
| Overland Park Regional Medical Center Olathe, KS · (913) 541-5000 MAGNESIUM URINE File of Sep 1, 2026 · source file | $441.60 | $441.60 | $57.41–$331.20 | — |
| Menorah Medical Center Overland Park, KS · (913) 498-6000 MAGNESIUM OTHER+1 more line at this price File of Sep 1, 2026 · source file | $461.64 | $461.64 | $60.01–$369.31 | — |
| Overland Park Regional Medical Center Olathe, KS · (913) 541-5000 MAGNESIUM OTHER File of Sep 1, 2026 · source file | $486.19 | $486.19 | $63.20–$364.64 | — |
| Centerpoint Medical Center Independence, MO · (816) 698-7000 MAGNESIUM OTHER+1 more line at this price File of Sep 1, 2026 · source file | $610.05 | $610.05 | $79.31–$549.04 | — |
| Centerpoint Medical Center Independence, MO · (816) 698-7000 MAGNESIUM BLD File of Sep 1, 2026 · source file | $646.26 | $646.26 | $84.01–$581.63 | — |
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 $4.64, median $62.30, highest $610.05 — a 131.5× difference within the same market.
As an inpatient, the same code is billed by 9 facilities here, median $37.92. 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 10 of 17 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 5 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 magnesium test is, what the price covers and why prices differ: Magnesium test explained.