Marlena Tzakis
West Allis
Summary
Detail-oriented billing specialist with extensive experience in ICD-10 and CPT coding. Proven track record in claim rejection research and resolution, ensuring compliance with HIPAA regulations.
Overview
28
28
years of professional experience
1
1
Certification
Work History
Certified Pharmacy Technician
Advocate Aurora Central Fill Automation
08.2024 - Current
- Accurately processed prescription orders through automated and manual systems, ensuring proper setup and documentation.
- Monitored and corrected data discrepancies related to medication counts, packaging, and inventory.
- Partnered with pharmacists to maintain compliance and accuracy in data-driven workflows.
Brand Ambassador
ARAS Promotions
05.2016 - Current
- Collaborate with diverse teams to deliver accurate brand information, requiring flexibility, problem-solving, and multitasking skills.
Billing Specialist
Greenfield Rehabilitation
06.2023 - 03.2024
- Entered, reviewed, and submitted billing data to ensure the accurate setup of payer/provider records for reimbursement.
- Researched and resolved rejected claims by validating coding, authorizations, and benefit details.
- Ensured compliance with federal and commercial payer requirements, reducing rejections and delays in payment.
- Conducted audits of medical records to identify errors in coding practices.
- Maintained knowledge of ICD-10, CPT, HCPCS, and other relevant coding systems.
- Utilized ICD-10, CPT, and HCPCS coding systems to process claims and billing.
Pharmacy Service Representative
Aurora at Home Pharmacy
10.2020 - 03.2021
- Verified patient insurance and provider details to ensure accuracy before claims submission.
- Collaborated with pharmacists to resolve discrepancies in provider/payer requirements, preventing errors and rejections.
Patient Charge Capture Representative
Aurora Cancer Care
06.2013 - 07.2020
- Accurately entered and audited chemotherapy drug charges, ensuring provider billing alignment with treatment documentation.
- Partnered with nurses and billing teams to identify inaccurate data and correct it for compliance, and proper reimbursement.
- Supported 20+ oncology clinics in resolving billing discrepancies and maintaining accurate provider charge records.
- Verified accuracy of diagnostic codes assigned by providers through ICD-10-CM coding conventions and CPT coding guidelines.
- Assisted with coding diagnoses and procedures for billing purposes.
Certified Pharmacy Technician
Aurora West Allis Memorial Hospital
06.1999 - 06.2013
- Managed accurate preparation, documentation, and delivery of IV/oral medications.
- Responded to provider and nursing data inquiries, ensuring accuracy of medication orders and billing records.
Pharmacy Technician
Walgreens
06.1997 - 06.1999
- Entered prescription and payer data into claim processing systems, resolving rejected claims through accurate data correction.
Education
High School Diploma -
West Allis Central
01.1997
Certified Pharmacy Technician (CPhT) -
Milwaukee Area Technical College
Medical Coding Specialist -
Waukesha County Technical College
Skills
- Provider enrollment and record setup
- ICD-10 and CPT coding
- Analytical thinking
- Billing and coding
- HIPAA compliance
- Insurance billing
- Claim research and resolution
- Medicare, Medicaid, and third-party billing
- Data entry
- Validation and accuracy review
- Revenue cycle management
- Denials management and compliance
- Workflow improvements
- Cross-functional collaboration
- Microsoft Office proficiency
- Healthcare claims systems knowledge
Certification
- Certified Medical Coder (CPC) - AAPC
- Certified Pharmacy Technologist
Websites
References
References available upon request.
Timeline
Certified Pharmacy Technician
Advocate Aurora Central Fill Automation
08.2024 - Current
Billing Specialist
Greenfield Rehabilitation
06.2023 - 03.2024
Pharmacy Service Representative
Aurora at Home Pharmacy
10.2020 - 03.2021
Brand Ambassador
ARAS Promotions
05.2016 - Current
Patient Charge Capture Representative
Aurora Cancer Care
06.2013 - 07.2020
Certified Pharmacy Technician
Aurora West Allis Memorial Hospital
06.1999 - 06.2013
Pharmacy Technician
Walgreens
06.1997 - 06.1999
High School Diploma -
West Allis Central
Certified Pharmacy Technician (CPhT) -
Milwaukee Area Technical College
Medical Coding Specialist -
Waukesha County Technical College
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