CMS Price Transparency Data
Blood test, magnesium
Facility: Petaluma Valley Hospital
Billing Code: 83735 (CPT)
The BaseRate · fair price medium confidence
A fair price for this
$27
about 3.9× the $7 Medicare rate · typically $9–$30
modeled estimate · not a bill or quote
Medicare pays $7 Fair price $27 Cash price $35 Hospital's list price $68
What each insurance company pays
Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.
3 of 6 major insurers have a published price at this hospital
✓ UnitedHealthcare✓ Blue Cross Blue Shield✓ Aetna CignaHumanaKaiser 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 | $13 | 194% |
| Blue Cross Blue Shieldmajor | $54 - $78 | 806% |
| Aetnamajor | $7 - $47 | 104% |
| Health Net | $7 | 104% |
Self-Pay How to get the cash price
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Other Procedures at Petaluma Valley Hospital
Compare: Blood test, magnesium at other CA hospitals
- Kaiser Foundation Hospital - Panorama City · Panorama City $6
- Kaiser Foundation Hospital - Los Angeles · Los Angeles $6
- Kaiser Foundation Hospital - Downey · Downey $6
- Kaiser Foundation Hospital Fontana/Ontario · Fontana $6
- Sierra Nevada Memorial Hospital · Grass Valley $6
- Kaiser Foundation Hospital - South Bay · Harbor City $6
- Mercy Hospital of Folsom · Folsom $6
- Kaiser Foundation Hospital - San Diego · San Diego $6
Insurance negotiated median for the same procedure, sorted lowest first.