Medical Biller / Accounts Receivable (AR) Specialist
Company: Libertana
Location: Los Angeles
Posted on: February 18, 2026
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Job Description:
Job Description Job Description JOB DESCRIPTION Position:
Medical Biller / Accounts Receivable (AR) Specialist Pay Range:
$27.00-$30.00 PER HR Reporting To: Reimbursement Manager Work Type:
On-Site POSITION SUMMARY: The Medical Biller / AR Specialist Must
have strong revenue cycle experience, including hands on work with
CalAIM (Medi Cal managed care). The Medical Biller/ AR Specialist
will own end to end billing, follow ups, denials management, and AR
resolution to drive clean claims and steady cash flow. REQUIRED
QUALIFICATIONS: High school diploma or GED preferred. 3 years of
medical billing/AR follow up experience in a healthcare setting.
Proven proficiency with Medi Cal managed care and commercial
payers’ claim workflows. Track record resolving denials, submitting
appeals, and obtaining/correcting authorizations. Proficiency with
EMR/EHR and billing systems; strong Excel skills (filters, sorting,
lookups). Exceptional attention to detail, organization, and
written communication. PREFFERED QUALIFICATIONS: Direct CalAIM
experience (e.g., ECM/CS or other CalAIM benefits), MCP portal
submissions, and authorization management. Home health, or
community-based services billing background. ESSNENTIAL DUTIES AND
RESPONSIBILITIES: The following is a representation of the major
duties and responsibilities of this position. The agency will make
reasonable accommodations to allow otherwise qualified applicants
with disabilities to perform essential functions. Prepare, review,
and submit clean claims to Medi Cal, commercial payers, and managed
care plans. CalAIM: submit and track claims to MCPs, verify
authorizations, resolve denials tied to medical necessity, prior
auth, referrals, and program eligibility; prepare professional
appeal letters and retro-auth requests when applicable. Perform
accurate charge entry, payment posting, and adjustments; reconcile
remittances (ERA/EOB) and maintain precise documentation in
EMR/billing systems. Work AR aging by payer and by program);
identify denial patterns and escalate root causes with clear
summaries. Answer billing inquiries from patients, providers, and
MCPs with professional, timely communication. PHYSICAL
REQUIREMENTS: Stand, sit, talk, hear, reach, stoop, kneel and use
of hands and fingers to operate computer, telephone, and keyboard
on a frequent basis (up to 75% of the time). Close vision
requirements due to computer work. Light to moderate lifting may be
required (up to 25lbs).
Keywords: Libertana, Buena Park , Medical Biller / Accounts Receivable (AR) Specialist, Accounting, Auditing , Los Angeles, California
