Accounts Receivable Specialist - Entry Level
momentum-formerly-ucpla • Chatsworth, CA • Full Time • $28–$28 / hour
Posted on Tue, Sep 22, 2026
Schedule: 8:00 AM to 5:00 PM, Monday - Friday
Momentum is seeking a entry level Accounts Receivable (AR) Specialist. The AR Specialist will perform a variety of billing and payment-processing tasks to ensure accurate and timely invoicing in accordance with Regional Center service contracts. This AR Specialist is responsible for applying cash and electronic payments to AR sub-ledgers, posting monthly charges, resolving billing discrepancies. The position requires strong attention to detail, familiarity with accounting terminology, and the ability to work efficiently with spreadsheets and automated accounting systems.
Benefits Include:
- Medical/Dental/Vision Insurance
- Life Assistance Program
- Flexible Spending Account (FSA)
- Paid Holidays
- Paid Vacation/Sick/Bereavement Leave
- Retirement Plan (403B)
- Employer-Sponsored Life Insurance
AR Essential Responsibilities:
- Data entry related to monthly billing to various Regional Centers utilizing a web-based system for CLS/SLS, supplemental support, and as needed with the Day Program.
- Monitor all Regional Center billing portals for retro invoices and data entry for invoices.
- Posts all cash receipts and monthly charges to the Regional Center client subsidiary ledgers.
- Post all cash receipts to Medi-Cal subsidiary ledgers related to SOC.
- Research and resolve unidentified/misapplied payments for Regional Center payments, collaborating with the AR Team. May include pulling all supporting documents identified for discrepancies and retro-billing.
- Maintain all admission documents, Medi-Cal, and Regional, downloading from email, or scanning hard copies to PDF, and saving to the shared AR folder.
- Assist in obtaining all documents for Medi-Cal FFS and Managed Health Care Plan authorizations and submitting them to the appropriate entities for approval.
- Manage and update the monthly cash forecasting report on receipt of Regional Center and Medi-Cal funding.
- Maintains records, paperwork, and filing system in the Accounts Receivable area, including but not limited to creating new files and labels, rotating and archiving storage of AR Department documents, on a monthly and annual basis.
- Assists AR Team with annual year-end audit and any government audits related to the Regional Center.
- Maintains customer confidence and protects Momentum Agencies' operations by keeping financial information confidential.
- Performs other duties as assigned to meet department and business needs.
AR Qualifications:
- High School diploma or equivalent
- AA and/or BA degree, highly preferred
- Two (2) or more years of work experience in all accounting functions, especially accounts receivable, medical billing, and reimbursement process
- Valid CA driver license and reliable personal transportation; required
- Must be able to read, write, comprehend, and communicate effectively in English
- Successfully pass all post-offer, pre-employment screening requirements, including criminal background check and provide proof of eligibility to work in the United States
- Ability to run, push, pull, bend, squat, kneel, lift up to 25 lbs., and transfer individuals
With 40 programs and service sites spanning several counties, Momentum is the largest nonprofit provider of direct support for individuals with disabilities in Southern California.
Momentum is an equal opportunity employer and is required to comply with equal opportunity legislation in each jurisdiction in which it operates. Momentum also considers qualified applicants with criminal histories for employment pursuant to California Law and, if applicable, the L.A. Fair Chance Ordinance.
JOB CODE: 3030-3202C AR Specialist
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