Reyna Hernandez
Lifeline Ambulance Service Inc.
144 Wiseman Way, Apt. A Upland ,CA
1
Certification
7
years of professional experience
Public Health graduate with experience in medical billing, patient accounts, and insurance claims. Experienced with ICD-10 coding, reviewing ePCRs, verifying insurance, and entering patient information accurately. I’m organized, dependable, a quick learner, and enjoy working in healthcare while continuing to grow my skills and experience.
Work History
Billing Specialist
1 Year- Facilitated processing of primary, secondary, and electronic claims per compliance standards.
- Ensured timely preparation and mailing of claims to expedite reimbursement while organizing documentation.
- Conducted regular inventory reviews to sustain adequate resources for billing operations.
- Collaborated with team members and billing manager to enhance efficiency of billing workflows.
- Performed quality assurance checks on claims for accuracy, addressing discrepancies promptly.
- Utilized billing software for tracking payments and generating comprehensive reports.
- Assisted in training new staff on billing procedures and software functionalities.
- Verified insurance coverage and identified third-party payers for accurate billing.
- ICD-10 certified with experience assigning and reviewing ICD-10 diagnosis codes for ambulance billing claims
- Perform medical data entry for patient accounts, reviewing electronic Patient Care Reports (EPCR’s) to build accurate billing narratives based on documented patient care and transport information.
Outdoor Vending Carts (ODV) Lead Cast Member
2 Years 6 Months- Operating the POS system, including the proper handling of and responsibility for the accuracy of the cash drawer, credit cards, travelers' checks, gift cards, and redeemed coupons.
- Completing repetitious tasks while maintaining quality can problem-solve and create appropriate solutions.
- Operating, preparing (dry stocking and stocking), and cleaning of all carts.
- Verifying audits and cash handling.
- Assisted new cast members by answering questions and providing guidance during their training.
- Provided exceptional customer service by greeting guests upon arrival and answering questions about products or services offered.
Team Member
3 Years 5 Months- Operating the POS system, including the proper handling of and responsibility for the accuracy of the cash drawer, credit cards, travelers’ checks, gift cards, redeemed coupons, discount tickets, passes, as well as concession stock inventory.
- Promoting the Regal Crown Club program.
- Operating, preparing, and cleaning of all concession-related equipment.
- Upselling/Suggestive selling.
- Assisting with all opening and closing duties, as assigned by management.
Administrative Assistant
1 Year- Assisted ambulance dispatch operations under supervision of the Dispatch Manager.
- Handled call-taking and confirmed patient transport appointments.
- Supported administrative tasks such as filing, organizing records, and verifying patient information.
- Gained exposure to emergency services coordination and patient-centered communication.
Education
Bachelor of Science - Public Health
HIGH SCHOOL DIPLOMA
- Presidential High School Diploma
- GPA: 4.0
Skills
Experience using ZOLL RightCad Billing Software
Cash/Credit Card Handling
POS system management
Positive attitude
Customer service
Reliable
Team player
Attention to detail
Medical transport billing
Quick learner
Internships/Volunteer Experience
MiOra – Community Health Specialist Intern
California State University, Los Angeles | Spring 2025
- Participated in a senior-year internship at a nonprofit health organization focused on increasing access to research and education for underserved populations.
- Conducted literature reviews, analyzed public health data, created and distributed surveys, and designed infographics to support health equity initiatives.
- Collaborated with a team to present findings and propose solutions for health-related disparities.
CovEducation – Public Relations Team Member
California State University, Los Angeles | 2023
- Volunteered with an educational nonprofit providing free tutoring and mentorship to K–12 students from low-income or underrepresented communities.
- Created promotional graphics and videos, conducted interviews, and contributed to media campaigns showcasing the impact and mission of the organization.
People P.E. – Peer Mentor
High School Program | 2019–2020
- Mentored and supported students with disabilities through inclusive physical education activities.
- Assisted with daily exercises and fostered a welcoming environment to promote participation and confidence among peers.
Yearbook/ASB – Member
High School | 2018–2020
- Contributed to campus engagement through student government and yearbook committees.
- Organized events, captured student life moments, and collaborated with peers on school-wide projects.
Certification
- ICD-10 Coding Fundamentals Certification
- Medicare Billing: CMS-1500 & 837p Certification
- Combating Medicare Parts C & D Fraud, Waste & Abuse Certification
Timeline
Billing Specialist
Lifeline Ambulance Service Inc.
10.2025 - CurrentRead More
Outdoor Vending Carts (ODV) Lead Cast Member
Disneyland Resort
03.2023 - 09.2025Read More
Administrative Assistant
Liberty Ambulance
06.2021 - 06.2022Read More
Team Member
Regal Mountain Theaters
11.2019 - 04.2023Read More
Upland High School
HIGH SCHOOL DIPLOMA
Read More
CAL STATE LA
Bachelor of Science from Public Health
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