Martisa Sumerlin
Stockbridge
Summary
Detail-oriented and patient-focused echocardiography clinical student with hands-on training in cardiac ultrasound imaging, Doppler studies, patient assessment, and healthcare documentation. Solid foundation in medical billing, insurance verification, and patient service, complemented by proven leadership, conflict resolution, and crisis management skills gained from experience as a correctional officer. Recognized for professionalism and adaptability while maintaining composure under pressure, delivering compassionate patient care. Actively pursuing a full-time opportunity as a Cardiac Sonographer to leverage skills and contribute to high-quality patient outcomes.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Charge Posting Representative
Laureate Medical Group
Atlanta, GA
11.2024 - 02.2025
- Process and post insurance payments accurately and efficiently, ensuring compliance with coding protocols and diagnosis codes.
- Research and resolve insurance-related claims issues and collaborate with front office staff to improve processes.
- Prepare monthly reports in alignment with department and organizational policies.
Scheduling/Insurance Coordinator
Moores Mill Dental
Atlanta, GA
01.2021 - 02.2025
- Scheduling for a 3-doctor practice.
- Developing patient financial treatment plans.
- Payment Posting
- Claim process and denial management
Cardiac Sonographer Clinical Intern
Wellstar Douglas Hospital
Douglasville, GA
01.2026 - Current
- Performed and assisted with TTE and TEE procedures, ensuring adherence to clinical protocols in both inpatient and outpatient care.
- Assisted and observed stress echo studies
- Documented patient preliminary findings in EMR systems
- Assisted in bubble studies and administering contrast
- Ensure patient comfort, safety and confidentiality throughout examinations.
Credit Specialist (Rev Cycle Department)
PT Solutions
Atlanta, GA
10.2021 - 04.2023
- Review and assess adjudicated claims for timely and proper payment of outstanding credits.
- Verify validity of credit/account balances by researching and reviewing accuracy of payments and adjustments.
- Process and document insurance refunds and credits.
Treatment Coordinator
Midtown Smile Center
Atlanta, GA
11.2018 - 03.2021
- Explain insurance benefits and financial plans to patients.
- Monitor weekly, monthly, and quarterly reports for patient’s accounts, office production and collections.
- Manage day sheets, bank deposits and doctor’s schedules daily.
- Marketing and public relations implementing procedures and policies.
911 Communications/Dispatcher
911 Communications
Fulton County, GA
03.2018 - 05.2018
- Answering all incoming 911 calls and collecting pertinent information from the caller using excellent verbal communications skills.
- Entering all information into the computer-aided dispatch system (CADS).
- Routing the call to the appropriate dispatcher or other service agency.
Senior Correction Officer
Northern State Prison
Newark, NJ
02.2014 - 02.2018
- Provide public safety and security through the custody and management of those individuals incarcerated within the Criminal Justice system.
- Monitoring inmate behavior to prevent crime escape attempts and other dangerous activities.
- Assist in the rehabilitation efforts for those incarcerated individuals returning to the community.
Education
College Prep - Courses, Applications: Microsoft Word, Excel & PowerPoint
Essex County VOC-Tech High School
Bloomfield, NJ01-2005
ARDMS -
Institute of Medical Ultrasound
Atlanta, GA06-2026
Skills
- Insurance Verification
- Medical Billing
- Ethical Standard of Conduct
- Quality Patient Care
- Conflict Resolution
- Safety and Security Awareness
- First Aid and CPR Certified
Certification
- CPR & First Aid Certified Instructor
- EMD Certified
- GCIC Certified
Timeline
Cardiac Sonographer Clinical Intern
Wellstar Douglas Hospital
01.2026 - Current
Charge Posting Representative
Laureate Medical Group
11.2024 - 02.2025
Credit Specialist (Rev Cycle Department)
PT Solutions
10.2021 - 04.2023
Scheduling/Insurance Coordinator
Moores Mill Dental
01.2021 - 02.2025
Treatment Coordinator
Midtown Smile Center
11.2018 - 03.2021
911 Communications/Dispatcher
911 Communications
03.2018 - 05.2018
Senior Correction Officer
Northern State Prison
02.2014 - 02.2018
College Prep - Courses, Applications: Microsoft Word, Excel & PowerPoint
Essex County VOC-Tech High School
ARDMS -
Institute of Medical Ultrasound