CMS Price Transparency Data
Blood test, magnesium
Facility: Island Hospital
Billing Code: 83735 (CPT)
The BaseRate · fair price high confidence
A fair price for this
$6
about 0.9× the $7 Medicare rate · typically $4–$8
modeled estimate · not a bill or quote
Medicare pays $7 Fair price $6 Cash price $69 Hospital's list price $69
What each insurance company pays
Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.
5 of 6 major insurers have a published price at this hospital
✓ Blue Cross Blue Shield✓ Aetna✓ Cigna✓ Humana✓ Kaiser Permanente UnitedHealthcare
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 |
|---|---|---|
| Blue Cross Blue Shieldmajor | $5 - $46 | 75% |
| Aetnamajor | $66 | 985% |
| Cignamajor | $55 | 821% |
| Humanamajor | $25 - $59 | 373% |
| Kaiser Permanentemajor | $25 | 373% |
| Amerigroup | $3 | 45% |
| Molina | $3 | 45% |
| + 4 smaller / regional plans | $4 - $27 |
Government programs also on file: Military & VA.
Excludes 2 rental-network / third-party entries (e.g. Multiplan, PHCS) — these are pricing networks, not insurers.
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Other Procedures at Island Hospital
Compare: Blood test, magnesium at other WA hospitals
- Olympic Medical Center · Port Angeles $5
- Pullman Regional Hospital · Pullman $5
- Providence St Mary Medical Center · Walla Walla $7
- Skagit Valley Hospital · Mount Vernon $7
- Virginia Mason Medical Center · Seattle $7
- Multicare Auburn Medical Center · Auburn $7
- Astria Toppenish Hospital · Toppenish $7
- Deaconess Medical Center · Spokane $7
Insurance negotiated median for the same procedure, sorted lowest first.