Krystan Mixon
Nashville,TN
Summary
OPERATIONS & CLIENT ACCOUNT SPECIALIST
Operations, billing, and client account professional with 6+ years of experience across healthcare, mental health, and B2B environments. Proven ability to manage high‑volume records, billing reports, client accounts, and escalations while meeting strict deadlines, compliance requirements, and service level agreements (SLAs). Strong background in reconciliation, documentation, and cross‑functional coordination in regulated environments.
Overview
8
8
years of professional experience
Work History
Case Manager
Meharry Medical Group
06.2025 - Current
- Process and maintain high‑volume client service records and billing reports with strict accuracy and regulatory compliance
- Investigate late, missing, or incorrect records and billing data, coordinating corrections across internal teams
- Manage time‑sensitive and escalated cases requiring compliance documentation and management reporting
- Reconcile client service, eligibility, and billing information to ensure data integrity
- Track cases through workflow systems to meet service level agreements (SLAs)
- Safeguard confidential client and financial information in accordance with HIPAA and organizational standards
Account Manager
T-Mobile
08.2021 - 06.2025
- Managed a portfolio of SMB and mid‑market accounts as the primary post‑sales point of contact
- Maintained detailed account records, billing activity, and engagement data in CRM systems
- Investigated billing discrepancies, service issues, and account exceptions, driving resolution across departments
- Supported renewals by tracking usage, identifying risk, and documenting value delivered
- Produced account performance and billing insights for leadership and sales teams
Business Care Expert
T-Mobile
06.2019 - 08.2021
- Processed customer orders, billing requests, and account changes with high accuracy and deadline requirements
- Researched and resolved complex billing, account, and service issues
- Maintained detailed documentation and audit‑ready account records
- Escalated time‑sensitive issues to field and leadership teams for rapid resolution
Assistant Case Manager
Erlanger Community Health/Avondale Head Start
08.2017 - 06.2019
- Supported case management operations including intake, documentation, and compliance reporting
- Maintained accurate service and client records for audits and regulatory reviews
- Coordinated follow‑ups and service delivery across providers and community partners
Education
Master of Science - Psychology
University of Arizona
Tucson, AZ05-2022
Bachelor of Science - Social Work
University of Tennessee, Chattanooga, TN
Chattanooga, TN05-2019
Skills
- Billing & Service Record Processing
- Account & Data Reconciliation
- Compliance & Audit Support
- Exception & Escalation Resolution
- SLA & Deadline Management
- Workflow & Case Management Systems
- Confidential Data Handling (HIPAA)
- Microsoft Excel, Word, Outlook
- CRM & Reporting Systems
Languages
English
Native or Bilingual
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Case Manager
Meharry Medical Group
06.2025 - Current
Account Manager
T-Mobile
08.2021 - 06.2025
Business Care Expert
T-Mobile
06.2019 - 08.2021
Assistant Case Manager
Erlanger Community Health/Avondale Head Start
08.2017 - 06.2019
Master of Science - Psychology
University of Arizona
Bachelor of Science - Social Work
University of Tennessee, Chattanooga, TN