What are the most common Ultrasound billing surprises?

The most common: (1) an out-of-network provider at an in-network facility, (2) multiple bills from different providers for one procedure, (3) prior authorization issues, and (4) facility fee differences between hospital and freestanding settings.

What is the No Surprises Act and how does it protect me?

The No Surprises Act (effective Jan 1, 2022) bans balance billing from out-of-network providers at in-network facilities and from out-of-network emergency providers. Your cost sharing is capped at what you'd owe in-network. You cannot be sent a balance bill - dispute any attempt immediately.

What should I do if I get a bill I didn't expect?

First, request an itemized bill. Then compare the CPT codes to what your physician ordered. Check your Explanation of Benefits (EOB) to see how your insurer processed each line. If there's a discrepancy, dispute with your insurer (not the provider) in writing.

How do I read my EOB to find billing errors?

Check: (1) CPT codes match the procedure ordered, (2) the provider is processed as in-network if they should be, (3) the allowed amount matches what you were quoted, (4) deductible and coinsurance applied correctly, (5) Member Responsibility column equals only what you should owe.

Diagnostic Imaging

John Caruso, FSA, MAAA • June 26, 2026 • 7 min read

The biggest Ultrasound billing surprises involve separate bills from multiple providers, prior authorization gaps, and out-of-network providers at in-network facilities.

Before you pay a surprise balance, find out if your paperwork qualifies for a professional review.

Ultrasound Billing Surprises: What Patients Don't Expect (2026)

Ultrasound billing is generally straightforward compared to advanced imaging (CT, MRI), but two issues catch patients off guard: an unexpected out-of-network radiologist or cardiologist, and a larger-than-expected bill due to hospital vs. freestanding facility pricing.

Common Ultrasound Billing Surprises

Surprise	Why it happens	What to do
Two bills instead of one	Technical (facility) and professional (radiologist) bill separately	Confirm both are in-network
Out-of-network reader	The radiologist interpreting the study is from a separate group	NSA protects you at in-network facilities; dispute any balance bill
Hospital facility fee	HOPD charges 1.5–2× vs freestanding imaging center	Request the study at a freestanding center when possible
Follow-up study triggered	Ultrasound finds something that requires additional imaging	Each follow-up is a new claim with its own deductible impact
Medical necessity denied	Weak or missing clinical documentation	Ensure your ordering physician documents the indication clearly

The Two-Bill Reality

Every ultrasound generates two separate claims:

Technical fee: The imaging center or hospital charges for the equipment, technologist, and overhead
Professional fee: The radiologist who reads the study bills separately

These may come from different entities with different network contracts. The No Surprises Act protects you from balance billing by an out-of-network radiologist at an in-network facility - your cost sharing is capped at the in-network rate.

The same ultrasound can be one bill or two - and the radiologist can be out-of-network even when the facility isn't.

Your personalized cost report includes:

✓ Why a facility splits into a technical bill and a separate radiologist bill (and an office bills one global fee)
✓ How the radiologist who reads your images can be out-of-network even at an in-network facility
✓ Why a hospital outpatient department costs far more than an independent imaging center
✓ How a complete vs. limited study changes the price - and the questions to ask first
✓ A real patient billing breakdown, line by line

Free for patients - takes 30 seconds to get.

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Facility Choice: A Large Cost Lever

Setting	Relative cost to your plan	Impact on your cost sharing
Hospital outpatient department	Highest	Highest coinsurance amount
Affiliated imaging center	Medium	Moderate
Freestanding imaging center	Lowest	Lowest coinsurance amount

When your physician refers you for a ultrasound, you can usually choose where it's performed. Ask specifically: "Can I have this done at a freestanding imaging center?" Same study, meaningfully lower cost.

Related Cost Information

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About the Author

John Caruso, FSA, MAAA

Healthcare actuary with 20+ years of experience in insurance pricing, medical billing systems, and healthcare cost analytics.

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