Open to opportunities

Katherine Muan

@katherinemuan

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Administrative and Operations Specialist improving healthcare workflows, claims accuracy, and turnaround times.

Philippines

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What I'm looking for

I’m looking for a fast-paced role where I can own administrative and revenue cycle workflows—improving turnaround times, reducing billing errors, and delivering HIPAA-compliant, high-quality stakeholder support in a remote or hybrid setting.

I’m a detail-oriented Administrative and Operations Specialist with 6+ years of experience supporting healthcare, real estate, and engineering teams in fast-paced, remote environments. My focus is delivering accurate, compliant service while streamlining processes that stakeholders rely on.

In healthcare, I’ve supported revenue cycle performance through HIPAA-compliant patient record management, eligibility verification, and claims processing. I handle accounts receivable workflows, managing denials and appeals, performing payment posting (EOB/ERA), and ensuring pre-authorizations and documentation are complete before submission through Greenway Health Intergy, NextGen, Valant and Waystar.

Across operations and customer support roles, I optimize workflows to reduce errors and improve turnaround times. I coordinate cross-functional communication, manage disputes and documentation and support provider offices with authorization and credentialing guidance—maintaining accuracy, professionalism, and organized records throughout.

Experience

Work history, roles, and key accomplishments

Administrative Assistant

CS Modern Workforce (Cloudstaff)

Mar 2025 - Sep 2025 (6 months)

Managed property-manager email inquiries, processed invoices, and maintained issuance logs in PropertyIQ to support accurate owner records. Coordinated disputes and compliance documentation using Outlook, Teams, Excel, OneDrive, and ResVu.

PropertyIQ Invoice Processing Compliance Outlook Microsoft Excel Microsoft Teams ResVu

Medical Billing Specialist

New Bedford Corporation & Affiliate Professional Services

Jun 2023 - Apr 2025 (1 year 10 months)

Ensured HIPAA-compliant patient records, verified eligibility, and submitted claims through Waystar and Greenway Health. Managed payment posting (EOB/ERA), accounts receivable follow-ups, and denials/appeals to reduce billing delays and improve revenue-cycle accuracy.

HIPAA compliance Eligibility Verification Payment Posting (EOB ERA)Accounts Receivable Denials Appeals Waystar Greenway EHR Systems

Customer Experience Executive

ProbeCX (Flybuys.com.au)

Dec 2022 - Mar 2023 (3 months)

Handled Flybuys member inquiries via email, providing guidance to resolve customer concerns. Verified promotions and manually applied discounts/vouchers when website processing failed, while keeping accurate records of transactions and resolutions.

Voucher Discount Processing

Office Engineer / Quantity Surveyor

Northern Builders

Feb 2022 - Dec 2022 (10 months)

Coordinated high-volume stakeholder communications and tracked project progress for the Kawit Kalayaan Hospital project. Managed RFIs, contract and scope changes, progress billings/change orders, and budget tracking using Excel to ensure timely, accurate documentation.

Stakeholder Management Progress Billing Change Orders Contract Review Budgeting Excel Microsoft Office Project Scheduling

Provider Service Representative

Cigna HealthSprings

Jan 2020 - Jan 2022 (2 years)

Supported provider offices with claims inquiries, authorization requirements, and eligibility verification, including explaining EOBs and assisting with claim resubmissions. Resolved billing discrepancies and payer-provider issues, including Medicare Advantage plan inquiries, with high accuracy and professionalism.

Authorization Medicare Advantage Support Customer Service