Phosphorus test cost in Grand Rapids, MI — inpatient
In Grand Rapids-Wyoming-Kentwood, MI, 8 hospitals list a cash price for phosphorus (phosphate) blood test as an inpatient: from $14.00 to $39.20, with a median of $19.40. The lowest listed price is at Corewell Health Butterworth Hospital and 3 other hospitals — $5.40 less than the median here. Across Michigan, the median is $21.00 at 85 hospitals.
Cash prices at 8 facilities across 6 cities for code 84100, as an inpatient (admitted to hospital) . Collected Sep 28, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Mar 31, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Grand Rapids-Wyoming-Kentwood, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Corewell Health Butterworth Hospital lowest Grand Rapids, MI · (616) 391-1774 Hc Phosphorous Level | $14.00 | $14.00 | — | — | — source file |
| Corewell Health Blodgett Hospital lowest East Grand Rapids, MI Hc Phosphorous Level | $14.00 | $14.00 | — | — | — source file |
| Corewell Health Zeeland Community Hospital lowest Zeeland, MI · (616) 772-4644 Hc Phosphorous Level | $14.00 | $14.00 | — | — | — source file |
| Corewell Health Butterworth Hospital lowest Grand Rapids, MI · (616) 391-1774 Hc Phosphorous Level | $14.00 | $14.00 | — | — | — source file |
| Corewell Health Greenville Hospital lowest Greenville, MI · (616) 754-4691 Hc Phosphorous Level | $14.00 | $14.00 | — | — | — source file |
| Trinity Health Grand Haven Hospital Grand Haven, MI · (616) 847-5268 PHOSPHORUS | $24.80 | $24.80 | $2.54–$57.00 | — | — source file |
| Mercy Health Saint Marys Grand Rapids, MI · (616) 685-5000 HC Phosphorus | $26.65 | $41.00 | $1.70–$41.00 | 35% | Mar 31, 2026 source file |
| Mary Free Bed Rehabilitation Hospital Grand Rapids, MI HCHG PHOSPHORUS | $39.00 | $39.00 | $24.63–$37.32 | — | — source file |
| Sheridan Community Hospital Sheridan, MI · (989) 291-3261 PHOSPHOROUS | $39.20 | $49.00 | $3.43–$43.27 | 20% | — source file |
Inpatient: lowest $14.00, median $19.40, highest $39.20 — a 2.8× difference within the same market.
As an outpatient, the same code is billed by 7 facilities here, median $14.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 of 4 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.