CMS Price Transparency Data
Blood test, magnesium
Facility: John Muir Medical Center - Walnut Creek Campus
Billing Code: 83735 (CPT)
Factual Cost Summary (Answer Capsule)
- CPT Billing Code: 83735
- Insurance Median: $7
- Cash Discount Price: $11
- vs. Medicare Baseline: 1.04x Medicare
The contracted insurance negotiated median rate for a Blood test, magnesium at John Muir Medical Center - Walnut Creek Campus is $7. If you are paying out-of-pocket or uninsured, the self-pay cash discount rate is $11. Compared to the federal Medicare reimbursement reference rate of $6.7, this hospital’s rate is 1.04x the Medicare baseline. Located in 1601 Ygnacio Valley Rd, Walnut Creek, CA.
Cash / Self-Pay
$11
Average discount available for prompt cash payment at this facility.
Insurance Median
$7
Median negotiated contract rate across all mapped commercial carriers.
Medicare Reference Rate
$6.7
Standard federal government reimbursement rate for this code.
Visual Cost Comparison vs. Medicare
Medicare Reference Baseline: $6.7 (100%)
Cash / Self-Pay: $11 (164%)
Insurance Median: $7 (104%)
Cash: $11 (164% of Medicare)
Ins. Median: $7 (104% of Medicare)
Understanding this gauge: We use the federal Medicare rate of $6.7 as the cost baseline. Rates below the baseline represent excellent value. In-network commercial rates commonly hover around 150% - 250% of Medicare, while rates exceeding 300% are elevated. Hover over the green and blue markers to view detailed calculations.
Out-of-Pocket Cost Estimator
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Commercial Insurance Negotiated Rates
Negotiated contract ranges established by major commercial carriers at this facility.
| Carrier / Plan Group | Contract Rate Range | vs. Medicare Reference |
|---|---|---|
| Aps Healthcare [1003103] | $2 - $206 | 30% |
| Carecentrix [1011001] | $2 - $183 | 30% |
| Carelon Behavioral Health [1050104] | $2 - $252 | 30% |
| Cigna | $2 - $328 | 30% |
| Fortified Provider Network [1063104] | $2 - $252 | 30% |
| Generic Commercial/Indemnity [1017001] | $2 - $183 | 30% |
| Medigap [1036001] | $2 - $252 | 30% |
| Three Rivers Provider Network [1073104] | $2 - $252 | 30% |
| United Behavioral Health [1048103] | $2 - $230 | 30% |
| UnitedHealthcare | $2 - $268 | 30% |
| Aetna | $3 - $331 | 45% |
| Blue Cross Blue Shield | $3 - $298 | 45% |
| Blue Shield Hmo [1006103] | $3 - $291 | 45% |
| Blue Shield Ppo [1006104] | $3 - $337 | 45% |
| Blue Shield-Network [1006026] | $3 - $291 | 45% |
| Contra Costa Health Plan Hmo [1013103] | $3 - $275 | 45% |
| Health Net Hmo [1028103] | $3 - $261 | 45% |
| Health Net Ppo [1028104] | $3 - $333 | 45% |
| Health Net-Network [1028026] | $3 - $261 | 45% |
| Western Health Advantage Hmo [1053103] | $3 - $367 | 45% |
| Federal Correction Institute [1062104] | $4 - $367 | 60% |
| First Health [1016104] | $4 - $389 | 60% |
| Galaxy Health Network [1064104] | $4 - $412 | 60% |
| Health Management Network [1066104] | $4 - $389 | 60% |
| Healthcomp [1089104] | $4 - $389 | 60% |
| Healthsmart - Pka Interplan [1031104] | $4 - $367 | 60% |
| Humana | $4 - $380 | 60% |
| Integrated Health Plan [1075104] | $4 - $412 | 60% |
| Kaiser Hmo [1033103] | $4 - $371 | 60% |
| Medicare (plans) | $4 - $367 | 60% |
| National Provider Network/Plancare America [1069104] | $4 - $367 | 60% |
| Networks By Design [1084104] | $4 - $367 | 60% |
| Pponext [1072104] | $4 - $367 | 60% |
| Sutter Preferred Health Plan [1044104] | $4 - $367 | 60% |
| Contra Costa County Jail [1012104] | $6 | 90% |
| Alignment Health [1177113] | $7 | 104% |
| Blue Shield-Network Mcare [1006127] | $7 | 104% |
| Care 1St Health Plan [1094113] | $7 | 104% |
| Caremore [1171113] | $7 | 104% |
| Covid19 Hrsa Uninsured Testing And Treatment Fund [1179012] | $7 | 104% |
| Easy Choice Health Plan [1083113] | $7 | 104% |
| Essence Healthcare [1049028] | $7 | 104% |
| Essence Healthcare [1049128] | $7 | 104% |
| Golden State-Network Mcare [1023127] | $7 | 104% |
| Health Net-Network Mcare [1028127] | $7 | 104% |
| Hospice Of East Bay [1085104] | $7 | 104% |
| Scan-Network Mcare [1043127] | $7 | 104% |
| Veterans Administration [1051113] | $7 | 104% |
| Generic Hmo [1018103] | $8 | 119% |
| Generic Ppo [1021104] | $8 | 119% |
| Jmpn Canopy Hn [1640000011] | $8 | 119% |
| Canopy Hn Hmo [1166103] | $12 | 179% |
| Brms [1091104] | $90 | 1343% |
| Delta Health Systems [1032104] | $90 | 1343% |
| Empire Plan [1092104] | $90 | 1343% |
| Donor Network West [1008103] | $8,000 - $12,000 | 119403% |