CMS Price Transparency Data
Blood test, magnesium
Facility: Spencer Municipal Hospital
Billing Code: 83735 (CPT)
The BaseRate · fair price high confidence
A fair price for this
$18
about 2.6× the $7 Medicare rate · typically $14–$19
modeled estimate · not a bill or quote
Medicare pays $7 Fair price $18 Cash price $39 Hospital's list price $52
What each insurance company pays
Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.
4 of 6 major insurers have a published price at this hospital
✓ UnitedHealthcare✓ Blue Cross Blue Shield✓ Aetna✓ Humana CignaKaiser Permanente
Crossed out = this hospital hasn’t published a negotiated price for that insurer for this procedure. It doesn’t necessarily mean they aren’t accepted — ask your insurer.
| Insurance company | Price range | vs. Medicare |
|---|---|---|
| UnitedHealthcaremajor | $7 - $57 | 104% |
| Blue Cross Blue Shieldmajor | $29 | 433% |
| Aetnamajor | $36 - $57 | 537% |
| Humanamajor | $7 - $61 | 104% |
| HealthPartners | $32 - $51 | 478% |
| Sanford Health Plan | $38 - $61 | 567% |
| + 2 smaller / regional plans | $38 - $61 |
Government programs also on file: Medicare, Medicaid.
Excludes 5 rental-network / third-party entries (e.g. Multiplan, PHCS) — these are pricing networks, not insurers.
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Other Procedures at Spencer Municipal Hospital
Compare: Blood test, magnesium at other IA hospitals
- Manning Regional Healthcare Center · Manning $5
- Veterans Memorial Hospital · Waukon $6
- Davis County Hospital · Bloomfield $6
- Horn Memorial Hospital · Ida Grove $6
- Unitypoint Health - Marshalltown · Marshalltown $7
- Trinity Muscatine · Muscatine $7
- Trinity Regional Medical Center · Fort Dodge $7
- University of Iowa Health Care Medical Center Down · Iowa City $7
Insurance negotiated median for the same procedure, sorted lowest first.