Feb 14, 2026

Onsite Medical Biller

Job Description

You are applying for a position through Medix, a staffing agency. The actual posting represents a position at one of our clients.

Job Summary

Our client is seeking a dedicated Patient Accounts Representative - Billing responsible for accurately reconciling payments from patients, insurance companies, and third-party payers to patient accounts. This position ensures timely and accurate allocation of payments, contractual adjustments, and denials while maintaining the integrity of the organization's financial records and supporting a smooth revenue cycle.

Key Responsibilities

  • Accurately apply payments to correct accounts, dates of service, and line items per payer guidelines.
  • Identify and post insurance denials with correct codes and notify supervisor of denial trends.
  • Reconcile daily deposit reports and balance payment batches with bank deposits and internal records.
  • Maintain proper documentation of all payment activity to ensure audit readiness and compliance.
  • Communicate regularly with supervisor to resolve payment discrepancies or posting issues.
  • Assist in month-end and year closing activities and financial reporting support as needed.
  • Ensure all activities are performed in accordance with HIPAA and other regulatory compliance standards.
  • Process overpayments, identify accounts for refunds, and route to appropriate personnel for approval.
Qualifications
  • High School Diploma or equivalent.
  • 1-2 years of billing/payment posting/full cycle revenue operations experience.
  • Experience with various Payors, including Medicaid, Medicare, and all major payors.
  • Strong attention to detail and accuracy with numeric data.
  • Knowledge of insurance payer guidelines, EOBs, ERAs, and adjustment practices.
  • Excellent organizational and communication skills.
  • Ability to work independently and prioritize tasks in a fast-paced environment.
  • Preferred experience with NextGen (EHR).
Benefits
  • Paid Sick Leave (Medix provides paid sick leave according to state and local sick leave ordinances).
  • Health Benefits / Dental / Vision (Medix offers 6 different health plans: 3 Major Medical Plans, 2 Fixed Indemnity Plans (Standard and Preferred), and 1 Minimum Essential Coverage (MEC) Plan. Eligibility for health benefits is based on verifying that an average of 30 hours per week during the first 4 weeks of the work assignment has been met. If you meet eligibility requirements and take action to enroll, you will be covered no earlier than 60 days into your assignment, depending on plan selection(s)).
  • 401k (Eligible on the first 401k open enrollment date following 6 consecutive months on assignment. 401k Open Enrollment dates are 1/1, 4/1, 7/1, and 10/1).
  • Short Term Disability Insurance.
  • Term Life Insurance Plan.

* We will consider for employment all qualified Applicants, including those with criminal histories, in a manner consistent with the requirements of applicable federal, state, and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance (FCIHO), Los Angeles Fair Chance Ordinance for Employers (ULAC), The San Francisco Fair Chance Ordinance (FCO), and the California Fair Chance Act (CFCA).

Medix Overview:

With over 20 years of experience connecting organizations with highly qualified professionals, Medix is a leading provider of workforce solutions for clients and candidates across the healthcare, scientific, technology, and government industries. Through our core purpose of positively impacting lives, we're dedicated to creating opportunities for job seekers at some of the nation's top companies. As an award-winning career partner, Medix is committed to helping talent find fulfilling and meaningful work because our mission is to help you achieve yours.

* As a job position within our Revenue Cycle division, a successful completion of a background check may be required as a condition of employment. This requirement is directly related to essential job functions including but not limited to: accessing financial and confidential information, handling financial and other payment data, and working within departments that care for vulnerable populations, such as, minors, elderly and those with physical or mental disabilities. Due to these job duties, this position has a significant impact on the business operations and reputation, as well as the safety and well-being of individuals who may be cared for as part of the job position or who may interact with staff or clients.