MZ Medical Billing is a full-service revenue cycle management company in St. Petersburg, FL, serving practices in all 50 states. Services cover medical billing, coding, claim submission, insurance verification, denial management, credentialing, and AR recovery across 75+ specialties like ABA, PT, OT, Speech Therapy, and Radiology. Plans start at 2.99%, with a 98% claim approval rate and 24/7 HIPAA compliant support.