M Naeem Ullah

Medical Billing & AR Denial Management Specialist

RevCircle • Full time

Jul 2025 - Present • 10 mos

Worked as a Medical Billing, Accounts Receivable (AR), and Denial Management Specialist supporting US healthcare providers with commercial and Medicare claims. Responsibilities included end-to-end AR follow-ups (30–120+ days), insurance denial analysis, EOB review, root cause identification, and preparation of corrected claims and appeal submissions. Regularly coordinated with payers to resolve underpayments and denied claims while maintaining detailed documentation. Key achievements included reducing denial rates from 14% to 6.5%, improving first-pass resolution to 92%, reducing A/R days from 52 to 34, and maintaining a 78% appeal success rate. Contributed to recovery of $450K+ in annual revenue. Experienced with Medicare, UnitedHealthcare, BCBS, and Aetna, using systems such as Epic, Kareo, Athena, NextGen, Availity, Waystar, and payer portals including NaviNet and Optum. All work performed in compliance with HIPAA guidelines. No real patient or client-identifying information is shared.