Years of experience: 18
Case ManagerEntertainmentCustomer ServiceHelp Desk SupportClient Relations SpecialistChat Support
Trust Score
Exceptionally trusted; proven professional excellence.
Mariel's Career Path
May. 2022 -Present
Columbia University Irving Medical CenterRevenue Cycle - Insurance follow up Analyst
United States• Resolution of unpaid, denied, or rejected insurance claims, ensuring adherence to timelines and quality standards.
• Implemented strategies for efficient appeals and submission of medical documentation, resulting in increased revenue realization.
• Identified persistent issues and trends, initiating corrective actions to streamline processes and improve outcomes.
• Collaborated cross-functi...
Jan. 2021 -Apr. 2022
UnitedHealth GroupCase Investigator and Contact Tracer
United States• Directed contact tracing efforts, overseeing communication channels and managing a high call volume to track and document COVID-19 exposure.
• Provided education and support to affected individuals, utilizing diverse platforms to disseminate information and resources effectively.
• Contributed to Vaccine Outreach Projects, orchestrating appointments, and facilitating COVID-19 vaccination in...
Feb. 2019 -Mar. 2020
BronxCare Health SystemPatient Financial Services
Bronx, New York, United States• Ensured compliance with billing guidelines and regulations while managing accounts receivable and denial reports for timely resolution.
• Collaborated with the Care Management Team, providing insights on denied cases and coordinating necessary clinical information for appeal purposes.
• Maintained meticulous records, reviewed claim denials, and followed up on unpaid accounts post-payment.
•...