Every commercial insurer rate these hospitals posted, as a dollar amount and as a multiple of the hospital's own Medicare base rate.
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| Hospital · insurer | Rate | × Medicare | Plans |
|---|---|---|---|
| Stanford Health Care Tri-Valley median $6,682 · local Medicare $8,359 · file 2026-04-01 | |||
| Aetna | $6,322 | 0.8× | 2 |
| Blue Shield of California | $8,476 | 1.0× | 2 |
| Cigna | $4,610 | 0.6× | 1 |
| UnitedHealthcare | $7,042 | 0.8× | 1 |
| Good Samaritan Hospital median $8,707 · local Medicare $8,707 · file 2026-09-01 | |||
| Aetna | $7,000 | 0.8× | 3 |
| Blue Shield of California | $11,861 | 1.4× | 2 |
| Bright Health | $4,829 | 0.6× | 1 |
| Cigna | $5,788 | 0.7× | 4 |
| Elevance/Anthem/Empire | $9,068 | 1.0× | 2 |
| MedCare Partners | $8,707 | 1.0× | 1 |
| UnitedHealthcare | $9,414 | 1.1× | 1 |
| St Mary's Medical Center median $8,741 · local Medicare $8,557 · file 2026-04-01 | |||
| Aetna | $8,741 | 1.0× | 1 |
| Blue Shield of California | $8,393 | 1.0× | 1 |
| Elevance/Anthem/Empire | $18,054 | 2.1× | 2 |
| Healthnet | $14,520 | 1.7× | 1 |
| Heritage Provider Network | $8,566 | 1.0× | 2 |
| Kaiser Permanente | $19,309 | 2.3× | 1 |
| UnitedHealthcare | $4,632 | 0.5× | 2 |
| John Muir Medical Center - Walnut Creek Campus median $11,614 · local Medicare $8,359 · file 2026-03-23 | |||
| Aetna | $10,026 | 1.2× | 4 |
| Alignment Health | $8,359 | 1.0× | 1 |
| BCBS (other) | $27,619 | 3.3× | 1 |
| Blue Shield of California | $12,778 | 1.5× | 5 |
| Brms | $27,619 | 3.3× | 1 |
| Canopy Hn HMO | $15,297 | 1.8× | 1 |
| Cigna | $13,680 | 1.6× | 3 |
| Covid19 Hrsa Uninsured Testing And Treatment Fund | $8,359 | 1.0× | 1 |
| Elevance/Anthem/Empire | $27,619 | 3.3× | 7 |
| Essence Healthcare | $8,359 | 1.0× | 2 |
| Generic Commercial/Indemnity | $10,449 | 1.3× | 1 |
| Generic HMO | $10,449 | 1.3× | 1 |
| Generic PPO | $10,449 | 1.3× | 1 |
| UnitedHealthcare | $27,670 | 3.3× | 7 |
| Stanford Health Care median $24,307 · local Medicare $8,707 · file 2026-04-01 | |||
| Aetna | $26,573 | 3.1× | 1 |
| Blue Shield of California | $39,140 | 4.5× | 2 |
| Elevance/Anthem/Empire | $21,946 | 2.5× | 1 |
| UnitedHealthcare | $22,041 | 2.5× | 1 |
5 San Francisco Bay Area CA hospitals post usable commercial rates for CPT 42820, hospital outpatient. The median across hospitals is $8,741; hospital medians range from $6,682 to $24,307. Your cost depends on your plan's deductible and coinsurance.