Ambulance billing is the process of submitting claims to Medicare, Medicaid, and commercial insurance companies for reimbursement of emergency and non-emergency ambulance transport services. It requires knowledge of HCPCS Level II codes (A-codes), medical necessity documentation standards, transport requirements, and payer-specific billing rules.

We charge a percentage of collections — typically 4–8% depending on call volume and payer mix. There are no setup fees or long-term contracts. We offer a free 30-day trial so you can evaluate our performance before any commitment.

We provide ambulance billing services to EMS agencies in all 50 states. Our team maintains current expertise in state-specific Medicaid requirements across the country.

Most clients are fully onboarded within 2–3 weeks. We handle data migration, payer enrollment verification, and system setup. There is no gap in billing during the transition.

Medicare Part B covers ambulance transport when a beneficiary requires medical supervision during transport and alternative means (such as a taxi or private vehicle) would be contraindicated given their medical condition. Coverage applies to both emergency and non-emergency transport when medical necessity is properly documented. Medicare pays 80% of the approved amount after the annual Part B deductible.

Ambulance services use HCPCS Level II codes. Common codes include: A0425 (ground mileage, per statute mile), A0426 (ALS, non-emergency), A0427 (ALS1-emergency), A0428 (BLS, non-emergency), A0429 (BLS-emergency). Air transport codes run A0430 through A0436. The level of care code must match the interventions documented in the Patient Care Report (PCR).

ALS1 (HCPCS A0427) applies when a patient requires ALS-level assessment or at least one ALS intervention. ALS2 (HCPCS A0433) applies when a patient requires multiple ALS interventions including at least one of the three ALS2-qualifying services: manual defibrillation, endotracheal intubation, or central venous line placement. ALS2 reimburses at a higher rate.

For Medicare, medical necessity means the patient's condition at the time of transport required the medical supervision and capabilities of ambulance transport — and that transport by other means was contraindicated. The PCR must document the patient's specific condition and why a wheelchair van, private vehicle, or other transport was not appropriate.

EMS billing involves Protected Health Information (PHI) and must comply with the HIPAA Privacy Rule (protecting PHI from unauthorized disclosure), Security Rule (safeguarding electronic PHI), and Breach Notification Rule (reporting data breaches within 60 days). Key requirements include Business Associate Agreements with all billing vendors, encrypted data transmission and storage, staff training, and documented policies and procedures.

A Medicare Administrative Contractor (MAC) audit is a review of Medicare claims to verify medical necessity and documentation compliance. Preparation steps: ensure PCRs are complete and legible with clear medical necessity documentation, maintain records for at least 7 years, conduct internal documentation audits quarterly, and establish a billing compliance policy. A proactive internal audit program is the most effective preparation.

If a Medicare audit identifies overpayments, CMS will issue a demand letter for repayment. You have the right to appeal. The appeals process has five levels: Redetermination, Reconsideration, Administrative Law Judge hearing, Medicare Appeals Council review, and Federal District Court. Our compliance team can support you through this process.

Industry-average collection rates for ambulance billing typically range from 85–92% of net charges (charges after contractual adjustments). Our clients average 98.2%, which reflects clean claim submission, aggressive denial management, and thorough secondary billing and patient collections.

The most common denial reasons are: missing or incomplete medical necessity documentation, incorrect level of care (billing ALS1 when documentation only supports BLS), eligibility issues (wrong insurance information), timely filing violations, duplicate claim errors, and prior authorization not obtained for non-emergency transport. We track every denial by reason code and address root causes.

Yes. Uninsured patients are billed directly for ambulance services. Many agencies offer hardship discounts, payment plans, or charity care programs. We handle patient billing professionally and compassionately, providing multiple payment options while maintaining strong collections.