ISEL CASTILLO

• Lead complex root cause analyses of enrollment and financial discrepancies across internal systems and insurance carriers.
• Design and maintain SQL-based queries and quality-control checks to validate data accuracy and prevent recurrence of errors.
• Identify systemic failure points and implement process improvements to strengthen long-term data reliability.
• Serve as senior escalation point for high-impact data issues requiring judgment, precision, and accountability.
• Mentor junior analysts and establish analytical and documentation standards.

• Reconciled enrollment and financial data between internal systems and external carriers to ensure accurate member coverage.
• Conducted structured root cause analyses to resolve discrepancies and reduce recurring data errors.
• Used SQL-based analysis to investigate, validate, and support correction of data inconsistencies.
• Identified opportunities for workflow automation and reporting improvements.
• Prepared clear documentation and summaries for technical, operational, and client-facing teams.

• Supported system enhancements through requirements gathering, functional documentation, and user acceptance testing.
• Managed and tracked JIRA tickets to support timely issue resolution and system releases.
• Updated operational reports and assisted in investigating EDI rejections.
• Coordinated cross-functional communication and documented action items.

• Supported project planning, documentation, and timeline tracking for operational initiatives.
• Maintained structured workflows to promote accountability and continuity.
• Provided analytical and organizational support to PMO leadership.

• Managed front desk operations, including scheduling, patient intake, and care coordination.
• Provided Spanish–English medical interpreting to support patient understanding of treatment plans and appointments.
• Maintained accurate patient records and assisted with insurance verification and billing support.
• Tracked weekly operational metrics and assisted with staff training and onboarding.