The Billing Executive in healthcare services is responsible for preparing and generating monthly maintenance service invoices according to contract terms. This includes verifying service reports, preventive maintenance records, and breakdown maintenance records before billing, coordinating with site engineers and project teams to collect necessary documentation, and ensuring timely invoice submission to clients, hospitals, and government departments. The role involves maintaining billing records, invoice registers, and supporting documents, tracking invoice status, and following up for payment collection. Additionally, the executive reconciles billed amounts with approved work orders, service reports, and contracts, prepares debit notes, credit notes, and billing adjustments as needed, and coordinates with accounts and finance teams regarding receivables and payment follow-ups.