Blood gases o2 saturation direct measurement at CHI Memorial Hospital Hixson

2051 Hamill Road, Hixson, TN · CommonSpirit Health · · NPI 1083778633

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

$202.47

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.

$684.00

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.

$25.21 with United vs $478.80 with Aetna — 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 Medicaid|TennCare $25.21 ↓ -88%
Amerigroup Medicaid|All Plans $35.69 ↓ -82%
Peach State Medicaid|All Plans $35.69 ↓ -82%
BCBS - TN Medicaid|BlueCare $56.67 ↓ -72%
BCBS - TN Commercial|Network S $68.13 ↓ -66%
United Commercial|Non-Options $78.77 ↓ -61%
United Commercial|Options $78.77 ↓ -61%
BCBS - ND Medicare|All Plans $81.92 ↓ -60%
Cigna Medicare|Healthspring $82.71 ↓ -59%
Humana Medicare|HMO $83.50 ↓ -59%
Amerigroup Medicare|All Plans $84.28 ↓ -58%
BCBS - TN Commercial|Network P $85.94 ↓ -58%
Humana Medicare|All Other Plans $86.65 ↓ -57%
Humana Medicare|PPO $86.65 ↓ -57%
Employers Health Network Commercial|All Plans $118.16 ↓ -42%
Centene Commercial|Ambetter Exchange $148.09 ↓ -27%
Cigna Commercial|LocalPlus $155.26 ↓ -23%
Cigna Commercial|Open Access $172.90 ↓ -15%
Aetna Commercial|Non-Gatekeeper $478.80 ↑ +136%
Aetna Commercial|Gatekeeper $478.80 ↑ +136%

Visitor-reported prices

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Blood gases o2 saturation direct measurement at other Tennessee hospitals

Hospital City Cash price Negotiated range
Ascension Saint Thomas Midtown Nashville $130.11 $28.36 – $247.18
CHI Memorial Hospital Chattanooga Chattanooga $289.34 $25.21 – $478.80
Ascension Saint Thomas DeKalb Smithville not published $19.90 – $247.18
Ascension Saint Thomas Highlands Sparta not published $19.90 – $247.18
Ascension Saint Thomas River Park McMinnville not published $19.90 – $247.18
Ascension Saint Thomas Rutherford Murfreesboro not published $38.08 – $247.18
Ascension Saint Thomas Hickman Centerville not published $58.07 – $247.18

All Tennessee hospitals for this procedure →