Do I need an order for a CCTA?

Usually, yes. A coronary CT angiogram is a diagnostic imaging test with IV contrast and radiation. Hospitals, imaging centers, and Medicare treat it that way. This directory will not tell you that you can walk in off the street for a CCTA without a clinician’s order. This page is educational, not legal advice and not medical advice.

Why an order is the default

An order (sometimes called a requisition or referral) documents:

• Who is asking for the test and why
• That someone is responsible for the results
• Clinical information the protocol and the reader need (symptoms, stents, kidney function, contrast history)

Medicare fee-for-service payment for CPT 75574 is built around a covered diagnostic service, not a direct-to-consumer screening product. Commercial plans vary, but they also typically require an ordering clinician. A calcium score is sometimes sold as self-pay screening; CCTA is a different test. See CCTA vs calcium score.

Our seed listings mark order required as the Medicare/typical pattern — not a walk-in screening. We do not change that to “no” because a marketing page somewhere said so.

Who can order a CCTA?

In practice, orders come from physicians and, depending on state law and the facility’s privileges, other licensed clinicians (for example a nurse practitioner or physician assistant) working within their scope. The imaging center’s policy controls what they accept. A self-referral you write for yourself is not an order.

If you do not have a cardiologist, a primary-care clinician is the usual starting point. We wrote a visit script you can print or keep on your phone.

What if I already have an order?

Bring it. Check that it says coronary CT angiogram / CCTA / CPT 75574 (or the wording your plan uses), not only “CT heart” or “calcium score,” unless that is truly what was intended. Ask the scheduler if they need recent creatinine, a medication list, or a prior authorization number. Prior authorization is a payer process; this site does not obtain it for you.

What if I do not have an order?

Do not treat our callback form as a booking or as a substitute for a clinician. The form is a request that someone may call you back. Most centers will still need an order before they scan you. If you have chest pain now, that is an urgent-care or emergency question, not a directory question.

Self-pay does not erase the order

Paying cash does not automatically make CCTA a screening product. Facilities still have policies, contrast safety, and — for Medicare beneficiaries — rules about what they can offer. We list cash price as Unknown on every seed row. We will not invent a self-pay CCTA menu.

How this site uses the word “order”

On facility pages you will see the source language: typical for Medicare CCTA; not a walk-in screening. Confirm with the center and your doctor. That is deliberate. We would rather be boring than imply you can skip a clinician.

Find addresses that billed CCTA in 2024 on Find a CCTA or city pages such as Los Angeles and San Francisco. Then talk with your doctor about whether an order is appropriate.

Medicare FFS versus what you will be asked to bring

The 2024 file behind this directory is Medicare fee-for-service claims for CPT 75574. A paid FFS claim means a clinician billed a diagnostic CCTA from that address. It does not mean the front desk will scan you because you found the listing. Expect them to ask for an order, identity, insurance or self-pay paperwork, and sometimes a recent creatinine. Medicare Advantage and commercial plans are not in the volume counts and often add prior authorization.

If you are a Medicare FFS beneficiary, ask the ordering office whether they expect additional documentation (signs and symptoms, prior tests). If you are not, do not assume the Medicare pattern applies to your plan.

Out-of-state orders and second opinions

Some people arrive in California with an order from another state. Whether a local center accepts it is a facility policy, not something we can promise. A second-opinion cardiologist may want to write their own requisition. Bring both documents and let the scheduler decide.

This article is educational and is not medical advice.