Mayo proinsulin 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

$5.32

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.

Full explanation →

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

$19.39

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.

$2.14 with WCMG vs $78.82 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 $2.14 ↓ -60%
Blue Shield CA Commercial|ACO Trio $6.02 ↑ +13%
Western Health Advantage Commercial|All Plans $6.79 ↑ +28%
Blue Shield CA Commercial|ACO Trio CalPers $7.76 ↑ +46%
Kaiser Medicaid|All Plans $7.95 ↑ +49%
Blue Shield CA Commercial|Exchange $8.15 ↑ +53%
Kaiser Commercial|All Plans $10.48 ↑ +97%
Blue Shield CA Commercial|PPO Tandem $10.67 ↑ +101%
Blue Shield CA Commercial|HMO $11.45 ↑ +115%
Blue Shield CA Commercial|CalPers $12.03 ↑ +126%
Blue Shield CA Commercial|PPO $12.80 ↑ +141%
First Health Commercial|All Plans $14.55 ↑ +173%
Healthsmart Commercial|All Plans $14.55 ↑ +173%
Sutter Health Commercial|All Plans $15.52 ↑ +192%
BCBS - Anthem Commercial|Connection EPO $15.52 ↑ +192%
MultiPlan Commercial|All Plans $16.10 ↑ +203%
BCBS - Anthem Medicare|All Other Plans $18.29 ↑ +244%
BCBS - Anthem Commercial|All Other Plans $19.39 ↑ +264%
BCBS - Anthem Medicaid|All Plans $19.39 ↑ +264%
BCBS - Anthem Commercial|MCS $19.39 ↑ +264%
Blue Shield CA Medicare|HMO $19.39 ↑ +264%
Blue Shield CA Medicare|PPO $19.39 ↑ +264%
Partnership Health Plan Medicaid|All Plans $19.39 ↑ +264%
Hill Physicians Commercial|All Plans $19.39 ↑ +264%
Humana Medicare|All Plans $19.39 ↑ +264%
Aetna Commercial|All Other Plans $19.39 ↑ +264%
Aetna Commercial|PPO $19.39 ↑ +264%
Aetna Medicare|All Plans $19.39 ↑ +264%
Aetna Commercial|HMO $19.39 ↑ +264%
Molina Medicaid|All Plans $19.39 ↑ +264%
Molina Medicare|All Plans $19.39 ↑ +264%
United Commercial|All Other Plans $19.39 ↑ +264%
United Medicare|All Plans $19.39 ↑ +264%
United Commercial|HMO $19.39 ↑ +264%
United Commercial|Options PPO $19.39 ↑ +264%
United Commercial|Non-Options PPO $19.39 ↑ +264%
United Medicaid|< 21 $19.39 ↑ +264%
United Medicaid|> 21 $19.39 ↑ +264%
Health Net Medicaid|All Plans $19.39 ↑ +264%
Kaiser Medicare|All Plans $19.39 ↑ +264%
California Health & Wellness Medicaid|All Plans $19.39 ↑ +264%
Humana Commercial|All Plans $19.39 ↑ +264%
Hill Physicians Medicaid|All Plans $19.39 ↑ +264%
BCBS - Anthem Medicare|Imperial $19.98 ↑ +276%
BrightHealth Commercial|All Plans $21.33 ↑ +301%
BlueShield Medicare|Trauma $24.24 ↑ +356%
Prison Healthcare Medicaid|All Plans $29.09 ↑ +447%
Cigna Commercial|LocalPlus $59.11 ↑ +1011%
Cigna Commercial|All Other Plans $78.82 ↑ +1382%

Visitor-reported prices

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Mayo proinsulin at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $12.41 $7.65 – $70.82
Banner Lassen Medical Center Susanville $8.76 $5.34 – $31.99
Petaluma Valley Hospital Petaluma $87.21 $26.16 – $140.69
Arroyo Grande Hospital Santa Maria $12.13 $9.08 – $68.78
Mark Twain Medical Center San Andreas $18.87 $15.33 – $27.81
French Hospital San Luis Obispo $11.11 $4.91 – $80.85
Mercy Hospitals – Bakersfield Bakersfield $24.12 $14.16 – $76.70
Bakersfield Memorial Hospital Bakersfield $23.86 $14.16 – $76.70

All California hospitals for this procedure →