Blood gases o2 saturation direct measurement at CHRISTUS Santa Rosa Emergency Center - Alon

11503 NW Military Hwy, San Antonio, TX · Christushealth · · NPI 1194787218

Source: hospital's published price file ↗ · Published Jan 12, 2026 · Ingested Sep 16, 2026

$167.31

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.

$507.00

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.

$2.00 with United Healthcare vs $292.24 with Blue Cross Blue Shield of Texas — 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
United Healthcare All Payer $2.00 ↓ -99%
Amerigroup Star KM $32.28 ↓ -81%
Amerigroup Star Plus KM $32.28 ↓ -81%
Amerigroup Chip KM $32.28 ↓ -81%
Community First Med Adv MM $32.28 ↓ -81%
Amerigroup Star Kids KM $32.28 ↓ -81%
Texas Healthspring MM $39.39 ↓ -76%
United Healthcare Chip KM $66.17 ↓ -60%
United Healthcare Star Plus KM $66.17 ↓ -60%
United Healthcare Star KM $66.17 ↓ -60%
Humana Choicecare $74.73 ↓ -55%
Coventry First Health MM $78.77 ↓ -53%
Humana Gold Choice MM $78.77 ↓ -53%
Humana Gold Plus MM $78.77 ↓ -53%
United Healthcare MM $78.77 ↓ -53%
Aetna Chip KM $78.77 ↓ -53%
Aetna MM $78.77 ↓ -53%
Aetna Star KM $78.77 ↓ -53%
Wellcare MM $78.77 ↓ -53%
Molina Chip KM $78.77 ↓ -53%
Molina Star Plus KM $78.77 ↓ -53%
Molina Medicare Adv MM $78.77 ↓ -53%
Superior Chip KM $78.77 ↓ -53%
Superior Star Plus KM $78.77 ↓ -53%
Superior Foster Care KM $78.77 ↓ -53%
Superior Star KM $78.77 ↓ -53%
Superior Star Kids KM $78.77 ↓ -53%
Superior Star Plus MM $78.77 ↓ -53%
Allwell Superior Health MM $78.77 ↓ -53%
Christus Health Med Adv MM $78.77 ↓ -53%
Triwest VA MM $78.77 ↓ -53%
Blue Cross Blue Shield Of Texas Star Chip KM $78.77 ↓ -53%
Blue Cross Blue Shield of Texas MM $78.77 ↓ -53%
Community First Chip KM $78.77 ↓ -53%
Community First Star KM $78.77 ↓ -53%
Community First Star Kids KM $78.77 ↓ -53%
Driscoll Children's Health Plan Chip KM $78.77 ↓ -53%
Driscoll Children's Health Plan Star KM $78.77 ↓ -53%
Driscoll Children's Health Plan Star Kids KM $78.77 ↓ -53%
El Paso First KM $78.77 ↓ -53%
First Care KM $78.77 ↓ -53%
Provider Partners Health Plan MM $81.13 ↓ -52%
Texas Independence Health Plan MM $81.13 ↓ -52%
Shared Health Insurance Company MM $82.71 ↓ -51%
Texas Childrens Health Plan Star Plus KM $82.71 ↓ -51%
Texas Childrens Health Plan Chip KM $82.71 ↓ -51%
US Imaging Network PPO $84.28 ↓ -50%
Amerigroup MM $85.07 ↓ -49%
Devoted Health Plan MM $85.07 ↓ -49%
ProCare Advantage MM $86.65 ↓ -48%
American Health Medicare Advantage MM $86.65 ↓ -48%
Imperial Health Plan MM $86.65 ↓ -48%
Employer Direct Healthcare PPO $94.52 ↓ -44%
Gilsbar Inc. MM $102.40 ↓ -39%
Christus Health HIX $110.28 ↓ -34%
Cigna New Business $112.75 ↓ -33%
Community First Health Plan HMO $118.36 ↓ -29%
Healthcare Highways PPO $121.05 ↓ -28%
Aetna New Business $140.37 ↓ -16%
Cigna PPO $142.79 ↓ -15%
Christian Brothers Services PPO $147.95 ↓ -12%
Aetna EPO $155.97 ↓ -7%
Aetna POS $155.97 ↓ -7%
Aetna HMO $155.97 ↓ -7%
Aetna PPO $155.97 ↓ -7%
Naphcare Inc. RRMB $157.54 ↓ -6%
Multiplan PPO $174.85 ↑ +5%
Healthsmart Accel PPO $174.85 ↑ +5%
First Health PPO $174.85 ↑ +5%
Phcs PPO $174.85 ↑ +5%
Five Point Credit Union PPO $188.30 ↑ +13%
Medicus Internatiaonal PPO $201.75 ↑ +21%
Blue Cross Blue Shield of Texas Blue AdvantangeHMO $202.44 ↑ +21%
Beech Street PPO $215.20 ↑ +29%
HealthSmart PPO $215.20 ↑ +29%
Provider Select PPO $215.20 ↑ +29%
Health Management Network PPO $215.20 ↑ +29%
Blue Cross Blue Shield of Texas HMO $246.55 ↑ +47%
Blue Cross Blue Shield of Texas HEB $249.70 ↑ +49%
National Choicecare PPO $255.55 ↑ +53%
Blue Cross Blue Shield of Texas PPO $277.27 ↑ +66%
Blue Cross Blue Shield of Texas Traditional $292.24 ↑ +75%

Visitor-reported prices

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Blood gases o2 saturation direct measurement at other Texas hospitals

Hospital City Cash price Negotiated range
Adventhealth Rollins Brook Lampasas $517.87 $70.89 – $303.26
BAYLOR UNIVERSITY MEDICAL CENTER Dallas $308.92 $10.00 – $386.14
BAYLOR SCOTT & WHITE MEDICAL CENTER - BRENHAM Brenham $300.41 $12.00 – $450.61
BAYLOR SCOTT & WHITE MEDICAL CENTER - BUDA Suite 110 $282.91 $12.00 – $353.63
BAYLOR SCOTT & WHITE MEDICAL CENTER - CENTENNIAL Frisco $308.92 $10.00 – $386.14
BAYLOR SCOTT & WHITE MEDICAL CENTER - COLLEGE STATION College Station $300.41 $12.00 – $450.61
BAYLOR SCOTT & WHITE CONTINUING CARE HOSPITAL Temple $300.41 $8.00 – $450.61
BAYLOR SCOTT & WHITE EMERGENCY MEDICAL CENTER - CEDAR PARK Cedar Park $282.91 $12.00 – $424.36

All Texas hospitals for this procedure →