CMS Price Transparency Data
Blood test, magnesium
Facility: Marshfield Medical Center - Weston
Billing Code: 83735 (CPT)
The BaseRate · fair price high confidence
A fair price for this
$34
about 4.9× the $7 Medicare rate · typically $14–$34
modeled estimate · not a bill or quote
Medicare pays $7 Fair price $34 Cash price $59 Hospital's list price $62
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✓ Cigna HumanaKaiser 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 - $63 | 104% |
| Blue Cross Blue Shieldmajor | $7 - $42 | 104% |
| Aetnamajor | $22 - $73 | 328% |
| Cignamajor | $22 - $71 | 328% |
| HealthPartners | $22 - $72 | 328% |
| Medica | $22 - $72 | 328% |
| Molina | $20 - $64 | 299% |
| Sanford Health Plan | $13 - $42 | 194% |
| Security Health Plan | $7 - $46 | 104% |
| + 10 smaller / regional plans | $7 - $357 |
Government programs also on file: Military & VA.
Excludes 5 rental-network / third-party entries (e.g. Multiplan, PHCS) — these are pricing networks, not insurers.
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Other Procedures at Marshfield Medical Center - Weston
Compare: Blood test, magnesium at other WI hospitals
- Grant Regional Health Center · Lancaster $5
- Upland Hills Health · Dodgeville $6
- St Josephs Community Hospital West Bend · West Bend $7
- Fort Memorial Hospital · Fort Atkinson $7
- St Vincent Hospital · Green Bay $7
- Marshfield Medical Center - Beaver Dam (Mmc-Bd) · Beaver Dam $7
- Gundersen Lutheran Medical Center · La Crosse $7
- Unitypoint Health - Meriter · Madison $7
Insurance negotiated median for the same procedure, sorted lowest first.