HCPCS A0427 cost and Medicare rate

For code A0427, ambulance service, advanced life support, emergency transport, level 1 (ALS 1 - emergency), Medicare's typical allowed amount nationally was about $523 in 2024, and providers typically billed about $1,637. Medicare rates are a common benchmark, not what every plan pays.

HCPCS A0427: Ambulance service, advanced life support, emergency transport, level 1 (ALS 1 - emergency)

Medicare 2024 allowed amounts, providers' billed amounts from 2024 · Checked 28 September 2026

What HCPCS A0427 is

Ambulance service, advanced life support, emergency transport, level 1 (ALS 1 - emergency).

Code A0427 is paid under a different Medicare fee schedule (labs, ambulance, drugs and equipment have their own). The figures here are Medicare's typical allowed amounts from 2024 instead.

What Medicare pays for A0427 nationally

A0427 by state

Where you were treated changes the benchmark. These are Medicare's typical allowed amounts in each state in 2024. Billed amounts are what providers typically billed in a hospital or other facility in 2024.

What your charge for A0427 means

Med Bill Check compares a charge with Medicare's rate and with what providers typically billed. Here is how it reads three national charges:

• Charged $520: Your $520 is close to the Medicare rate, which is a good sign. Medicare rates are a common benchmark, not what every plan pays.
• Charged $1,050: Your $1,050 is about 2 times the Medicare rate, though below what providers typically billed. That is a common benchmark rather than a verdict, and asking for an itemized bill or a self-pay discount is a sensible next step.
• Charged $2,100: Your $2,100 is about 4 times the Medicare rate and 1.3 times what providers typically billed. That is a common benchmark rather than a verdict, and asking for an itemized bill or a self-pay discount is a sensible next step.

Medicare rates are a common benchmark, not what every plan or provider charges, and never proof a bill is wrong. Enter your own charge and state on the home page for your figures.

Common billing questions for A0427

• Units: Medicare's automated limit for A0427 is 2 units for one patient on one day (NCCI Medically Unlikely Edits). If your bill shows more, ask them to confirm the units. Medicare limits (MUE) are the most units Medicare pays automatically for one patient on one day. Going over is a reason to ask, not proof of an error, since some cases are allowed with records.
• Duplicates and services you did not get: Look for duplicate lines, services you did not receive, and unit counts that look high.

How to question a charge for A0427

1. Ask for an itemized bill with codes, units and prices. Itemized bill letter.
2. Compare each line with your Explanation of Benefits if you have insurance.
3. Ask the billing office to review the charge in writing, and to hold the account from collections meanwhile. Charge review letter.
4. Ask for a prompt-pay or self-pay discount, or an interest-free payment plan. Discount letter.
5. If it was a hospital, ask for its financial assistance policy. Financial assistance letter and which hospitals must offer it.

With your code and amount, the review letter adds the benchmark for you, for example: For reference, Medicare's published 2024 data shows a typical allowed amount of about $523 for code A0427 in the US, and a typical billed amount of about $1,637.

Keep a copy of everything you send, and note the date and the name of anyone you speak to. If you have insurance, call your insurer too. They can check whether the claim was processed correctly.

Quick answers

What is HCPCS A0427?

Ambulance service, advanced life support, emergency transport, level 1 (ALS 1 - emergency).

How much does Medicare pay for A0427?

Code A0427 is paid under a different Medicare fee schedule (labs, ambulance, drugs and equipment have their own). Medicare's typical allowed amount nationally was $522.51 in 2024.

What do providers typically charge for A0427?

In 2024, providers nationally typically billed $1,636.95 for A0427 in a hospital or other facility.

Is $2,100 for A0427 too much?

Your $2,100 is about 4 times the Medicare rate and 1.3 times what providers typically billed. That is a common benchmark rather than a verdict, and asking for an itemized bill or a self-pay discount is a sensible next step.

How much is A0427 in Texas?

For code A0427, ambulance service, advanced life support, emergency transport, level 1 (ALS 1 - emergency), Medicare's typical allowed amount in Texas was about $513 in 2024, and providers typically billed about $1,642. Medicare rates are a common benchmark, not what every plan pays.

How many units of A0427 can be billed in one day?

Medicare's automated limit is 2 for one patient on one day. Going over is a reason to ask, not proof of an error, since some cases are allowed with records.

Sources

• CMS Medicare Physician and Other Practitioners by Geography and Service, 2024 data (data.cms.gov)
• CMS NCCI Medically Unlikely Edits, effective 2026-10-01

General information, not medical, legal or financial advice. Medicare rates are a common benchmark, not what every plan or provider charges. For your own bill, check with the billing office, your insurer or your doctor.

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