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Medicare Ambulance PCS: Physician Certification

Medicare requires a physician certification statement (PCS) to support payment for non-emergency ambulance transport, certifying that the patient's condition makes other means of transport contraindicated. Clinicians meet it when a patient needs repetitive scheduled trips or when a facility arranges an unscheduled non-emergency transport. The ambulance supplier keeps it and relies on it for claims and prior authorization.

Who completes it

For repetitive scheduled transports the attending physician signs. For unscheduled transports, a physician assistant, nurse practitioner, clinical nurse specialist, registered nurse or discharge planner may sign instead. There is no patient section.

Submitting and payment

How to submit it
Give the signed statement to the ambulance supplier, which keeps it on file and sends it with RSNAT prior authorization requests or when the Medicare Administrative Contractor asks. CMS publishes no standard form, so each supplier provides its own.
Who pays
Medicare pays the ambulance supplier for the transport, and the PCS is part of the documentation that supports the supplier's claim.

Good to know

  • The requirement comes from 42 CFR 410.40(e). For repetitive transports, the PCS or order must be dated no earlier than 60 days before the service.
  • CMS's RSNAT operational guide lists PCS defects among the top reasons prior authorization requests are not affirmed, and suppliers must hold a valid PCS at all times.
  • RSNAT prior authorization is voluntary, but if none is requested by the fourth round trip in a 30-day period, the supplier's claims go to prepayment review.
  • Since January 9, 2025, the standard RSNAT review time is 7 calendar days. Some state Medicaid programs, such as Illinois with HFS 2270, have their own PCS form.

Get the official form

Download the current version from the source each time; forms change without notice.

Physician Certification Statement (PCS) for Non-Emergency Ambulance Transport

Official page

Fill it with Vero

If your copy of the form is a fillable PDF, upload it once and Vero Documents fills it from the visit note and the chart, ready for you to review and sign. Download, print, or email the finished form, with the patient’s consent.

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How this list is checked

A form is listed only after its name and number were confirmed on the issuing agency’s or insurer’s own website, or in the form itself. Each entry links to that source. The list was last checked in October 2026. Forms and their requirements change without notice, so check the official page for the current version before you complete one.

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Frequently asked questions

Who can sign a Medicare PCS for ambulance transport?

The attending physician signs the PCS for repetitive, scheduled non-emergency transports. For unscheduled non-emergency transports, a physician assistant, nurse practitioner, clinical nurse specialist, registered nurse or discharge planner may sign instead.

How long is a PCS valid for repetitive ambulance trips?

For repetitive scheduled transports, the PCS or order must be dated no earlier than 60 days before the date of service, so suppliers request a new one for continuing trips. CMS says RSNAT prior authorization requires the same information already needed to support Medicare payment.

Is there an official CMS PCS form?

No. CMS does not publish a standard physician certification statement, and each ambulance company supplies its own template. CMS does post a letter suppliers can share with physicians and practitioners explaining the documentation the RSNAT model needs.