Mark ****** *** *******

Mark Lester Del Rosario
Medical Biller | Revenue Cycle Management Specialist | Customer & Client Services Professional

📧 marklesterdrosario@gmail.com | 📱 +63 945 995 7590 | Antipolo City, Philippines
LinkedIn: linkedin.com/in/marklesterdelrosario

Professional Summary:
Highly motivated and customer-focused professional with over six years of experience in U.S. healthcare operations, end-to-end revenue cycle management, and client services. Expertise in Medical Billing, Coding, Charge Auditing, Insurance Verification, Prior Authorization, AR Follow-ups, Patient Coordination, and Customer Support.

Proven track record of ensuring accurate coding, compliant documentation, timely reimbursements, reduced denial rates, and high client satisfaction. Adept at analyzing complex workflows, implementing process improvements, and supporting both patients and internal stakeholders. Experienced with Infusion, Hydration, and Injection Coding, and proficient in multiple EMR/EHR platforms and CRM systems.

Core Competencies
Revenue Cycle Management (RCM) & Charge Auditing
Medical Billing & Coding (CPT, HCPCS, ICD-10-CM, NCCI, LCD/NCD rules)
Insurance Verification & Prior Authorization
Claims & Denials Management | AR Follow-ups
Patient Support & Customer Service
EMR/EHR & CRM Systems (Epic, 3M, Meditech, Trisus Craneware, AdvancedMD, DME Scripts, Allscripts, Go Scripts, Bloom Health, Parachute Health, Brightree)
Compliance & Regulatory Knowledge (HIPAA, Medicare, Medicaid, Commercial Payers)
Technical Support & Problem-Solving
Sales & Account Management

Professional Experience
Conifer Health Solutions – Charge Audit Specialist
Mar 2025 – Aug 2025 | Hybrid

Reviewed medical records and validated CPT, HCPCS, ICD-10-CM codes, and billing modifiers to ensure accurate billing.
Conducted pre-bill and post-bill audits for multi-specialty and inpatient/outpatient services using Epic and 3M.
Identified and corrected undercharges/overcharges, recovering significant revenue.
Reduced claim denials by proactively resolving coding/documentation issues.
Contributed to SOPs and auditing workflows to enhance charge validation efficiency.
Assisted in internal and external audits, providing detailed reports and corrective actions.

Haulla – Account Manager / Business Development Manager
Dec 2024 – Jan 2025 | Remote

Reached out to small business owners to introduce company services and secure contracts.
Built and maintained a sales pipeline, exceeding quotas and driving business growth.
Conducted cold calls, managed outreach campaigns, and tracked leads using CRM tools.
Served as primary client contact, addressing inquiries and service issues to ensure satisfaction.
Prepared sales reports and provided insights for strategic decision-making.

BetterNight | Sleep Data LLC – Client Services Representative 2
Jun 2023 – Sep 2024 | On-site, Philippines

Delivered patient support for sleep therapy (CPAP, oral appliances) and home sleep testing.
Managed insurance verification, claims follow-up, and documentation in Brightree CRM/EHR.
Educated patients on therapy, equipment usage, and insurance coverage.
Collaborated with clinical teams to ensure seamless patient experience and HIPAA compliance.

Rula | Path CCM | SUD Specialty Group – Case Manager & Insurance Verification Specialist
Mar 2022 – Jun 2023 | Remote

Verified insurance eligibility and benefits for mental health and primary care services.
Obtained prior authorizations, clarified coverage, and resolved discrepancies with insurers.
Maintained accurate EHR documentation and ensured HIPAA compliance.
Provided patient-focused education on insurance and care options, improving satisfaction.

Breg Inc. – Claims Specialist
Nov 2019 – Mar 2022 | Remote

Managed Workers’ Compensation and Auto Insurance claims from verification to reimbursement.
Performed coding audits, denials management, and claims investigations.
Coordinated with insurance carriers, TPAs, and healthcare providers for timely resolution.
Supported DME billing, prior authorizations, and claim follow-ups across multiple lines.

Optus – Financial Services Representative & Mobile Technical Support Tier 1/2
Jan 2019 – Sep 2019 | Remote

Assisted clients with financial hardship, payment plans, and account management.
Provided technical support via chat/phone for mobile devices and services.
Maintained customer satisfaction through effective problem-solving, communication, and compliance.

Spectrum – Technical Support Representative
Dec 2017 – Dec 2018 | On-site, Philippines

Handled technical support cases, troubleshooting and resolving customer issues.
Provided excellent customer service, attention to detail, and multi-tasked efficiently.

Time Warner Cable – Customer Service Representative
Jun 2016 – Dec 2017 | NCR, Philippines

Assisted customers with inquiries, complaints, and sales support.
Ensured client satisfaction, maintained documentation accuracy, and provided problem-solving solutions.

Education
Bachelor’s – Trinity University of Asia, Philippines

Languages
English – C2 (Full Professional Proficiency)