Dilate biliary duct/ampulla at St. Joseph's Medical Center Stockton

1800 N California St, Stockton, CA · CommonSpirit Health · · NPI 1528190931

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

$645.33

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.

$2,195.00

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.

$460.95 with Kaiser vs $6,406.00 with Blue Shield CA — 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
Kaiser Commercial|Affiliated Payers $460.95 ↓ -29%
Kaiser Commercial|All Other Plans $460.95 ↓ -29%
Health Plan of San Joaquin Medicaid|All Plans $469.47 ↓ -27%
BCBS - Anthem Medicaid|> 21 $469.47 ↓ -27%
BCBS - Anthem Medicaid|< 21 $469.47 ↓ -27%
Kaiser Medicaid|> 21 $469.47 ↓ -27%
Kaiser Medicaid|< 21 $469.47 ↓ -27%
HPSJ Medicaid|> 21 $469.47 ↓ -27%
Sutter UMR Commercial|All Plans $1,097.50 ↑ +70%
Health Net Medicaid|All Plans $1,159.59 ↑ +80%
Healthsmart Commercial|All Plans $1,317.00 ↑ +104%
First Health Commercial|All Plans $1,580.40 ↑ +145%
MultiPlan Commercial|All Plans $1,799.90 ↑ +179%
United Commercial|All Other Plans $1,843.80 ↑ +186%
United Commercial|HMO $1,843.80 ↑ +186%
United Commercial|Options PPO $1,953.55 ↑ +203%
United Commercial|Non-Options PPO $2,195.00 ↑ +240%
BCBS - Anthem Commercial|Exchange $3,122.00 ↑ +384%
Aetna Commercial|PPO $3,155.00 ↑ +389%
Aetna Commercial|All Other Plans $3,155.00 ↑ +389%
Aetna Commercial|HMO $3,155.00 ↑ +389%
BCBS - Anthem Commercial|Non-MCS $4,277.00 ↑ +563%
Blue Shield CA Commercial|Exchange $4,893.00 ↑ +658%
BCBS - Anthem Commercial|MCS $6,009.00 ↑ +831%
Blue Shield CA Commercial|All Other Plans $6,406.00 ↑ +893%

Visitor-reported prices

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Dilate biliary duct/ampulla at other California hospitals

Hospital City Cash price Negotiated range
St. John's Camarillo Hospital Camarillo $731.90 $451.17 – $1,303.38
Arroyo Grande Hospital Santa Maria $751.14 $469.47 – $1,719.90
French Hospital San Luis Obispo $687.96 $469.47 – $1,719.90
Mercy Hospitals – Bakersfield Bakersfield $856.27 $469.47 – $2,054.12
Bakersfield Memorial Hospital Bakersfield $847.04 $469.47 – $2,284.92
Providence Mission Hospital - Mission Viejo Mission Viejo $2,304.96 $1,200.00 – $7,908.00
Mercy Medical Center Merced Merced $1,156.69 $469.47 – $2,223.54
Dominican Hospital Santa Cruz $3,503.25 $469.47 – $7,006.50

All California hospitals for this procedure →