Mayo immunoassay tumor antigen quantitative chromogranin a at Mercy San Juan Medical Center

6501 Coyle Avenue, Carmichael, CA · CommonSpirit Health · · NPI 1972541498

Source: hospital's published price file ↗ · Published Feb 28, 2026 · Ingested Sep 10, 2026

$6.85

Cash price

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Discounted cash price

What a hospital charges a self-pay patient who pays directly, without going through insurance — usually well below the gross charge.

Example: A CT scan has a $3,200 gross charge but an $850 discounted cash price. Ask for it by name when scheduling — hospitals don't always advertise it up front.

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What you pay up front if you don't use insurance.

$25.00

Gross charge

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Gross charge (chargemaster price)

The hospital's full, undiscounted list price — pulled from its internal "chargemaster" price list. Almost no one actually pays this.

Example: A chest X-ray has a gross charge of $1,450. The same hospital's discounted cash price for the same X-ray is $180 — the gross charge mostly anchors negotiations, not what patients pay.

Full explanation →

The hospital's undiscounted list price — almost no one pays this.

$2.04 with WCMG vs $61.47 with Cigna — same scan, same building. Share

Negotiated rates by payer
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Negotiated rate

The price a specific insurance plan agreed to pay the hospital for a service — it varies by insurer, and even by plan within the same insurer.

Example: The same knee MRI has a negotiated rate of $904 with one insurer's PPO plan and $1,509 with another's — identical hospital, identical scan.

Full explanation →

Payer
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Payer

The insurance company footing the bill — Aetna, UnitedHealthcare, Medicare, and so on.

Example: "Blue Cross Blue Shield" is the payer. Its negotiated rate for an MRI might be $904, while a different payer's negotiated rate for the same scan is $1,509.

Full explanation →
Plan
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Plan

The specific product an insurer sells — e.g. "Blue Cross PPO 500" — which sets your deductible, coinsurance and negotiated rates.

Example: Two people both insured by Aetna can owe very different amounts for the same MRI: $50 with an HMO plan's flat copay, or the full $1,200 toward a high-deductible PPO plan's unmet deductible.

Full explanation →
Negotiated rate vs. cash
WCMG Commercial|All Plans $2.04 ↓ -70%
Blue Shield CA Commercial|ACO Trio $5.74 ↓ -16%
Western Health Advantage Commercial|All Plans $6.48 ↓ -5%
Blue Shield CA Commercial|ACO Trio CalPers $7.41 ↑ +8%
Kaiser Medicaid|All Plans $7.59 ↑ +11%
Blue Shield CA Commercial|Exchange $7.78 ↑ +14%
Kaiser Commercial|All Plans $10.00 ↑ +46%
Blue Shield CA Commercial|PPO Tandem $10.19 ↑ +49%
Blue Shield CA Commercial|HMO $10.93 ↑ +60%
Blue Shield CA Commercial|CalPers $11.48 ↑ +68%
Blue Shield CA Commercial|PPO $12.22 ↑ +78%
Healthsmart Commercial|All Plans $13.89 ↑ +103%
First Health Commercial|All Plans $13.89 ↑ +103%
BCBS - Anthem Commercial|Connection EPO $14.81 ↑ +116%
Sutter Health Commercial|All Plans $14.81 ↑ +116%
MultiPlan Commercial|All Plans $15.37 ↑ +124%
BCBS - Anthem Medicare|All Other Plans $17.46 ↑ +155%
Partnership Health Plan Medicaid|All Plans $18.50 ↑ +170%
BCBS - Anthem Medicaid|All Plans $18.51 ↑ +170%
BCBS - Anthem Commercial|MCS $18.51 ↑ +170%
Blue Shield CA Medicare|HMO $18.51 ↑ +170%
Blue Shield CA Medicare|PPO $18.51 ↑ +170%
Hill Physicians Commercial|All Plans $18.51 ↑ +170%
Humana Medicare|All Plans $18.51 ↑ +170%
Aetna Commercial|All Other Plans $18.51 ↑ +170%
Aetna Commercial|PPO $18.51 ↑ +170%
Aetna Medicare|All Plans $18.51 ↑ +170%
Aetna Commercial|HMO $18.51 ↑ +170%
Molina Medicaid|All Plans $18.51 ↑ +170%
Molina Medicare|All Plans $18.51 ↑ +170%
United Commercial|All Other Plans $18.51 ↑ +170%
United Medicare|All Plans $18.51 ↑ +170%
United Commercial|HMO $18.51 ↑ +170%
United Commercial|Options PPO $18.51 ↑ +170%
United Commercial|Non-Options PPO $18.51 ↑ +170%
United Medicaid|< 21 $18.51 ↑ +170%
United Medicaid|> 21 $18.51 ↑ +170%
Health Net Medicaid|All Plans $18.51 ↑ +170%
Kaiser Medicare|All Plans $18.51 ↑ +170%
BCBS - Anthem Commercial|All Other Plans $18.51 ↑ +170%
California Health & Wellness Medicaid|All Plans $18.51 ↑ +170%
Humana Commercial|All Plans $18.51 ↑ +170%
Hill Physicians Medicaid|All Plans $18.51 ↑ +170%
BCBS - Anthem Medicare|Imperial $19.07 ↑ +178%
BrightHealth Commercial|All Plans $20.37 ↑ +197%
BlueShield Medicare|Trauma $23.14 ↑ +238%
Prison Healthcare Medicaid|All Plans $27.77 ↑ +305%
Cigna Commercial|LocalPlus $46.10 ↑ +573%
Cigna Commercial|All Other Plans $61.47 ↑ +797%

Visitor-reported prices

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Mayo immunoassay tumor antigen quantitative chromogranin a at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $13.13 $6.75 – $55.23
Banner Lassen Medical Center Susanville $15.93 $4.16 – $30.52
Petaluma Valley Hospital Petaluma $46.59 $20.39 – $169.87
Arroyo Grande Hospital Santa Maria $12.83 $5.60 – $53.63
Mark Twain Medical Center San Andreas $94.91 $13.54 – $25.00
French Hospital San Luis Obispo $11.75 $3.03 – $63.05
Mercy Hospitals – Bakersfield Bakersfield $32.08 $5.82 – $59.82
Bakersfield Memorial Hospital Bakersfield $31.73 $5.82 – $59.82

All California hospitals for this procedure →