Administrative Assistant II — Early Hours & Growth

Acadia Healthcare; El Cajon (CA); On-site; USD 34,000 - 37,000; Full time

Benefits offered by this job

Semi-Annual Bonus Program

Medical, Dental, Vision insurance

Competitive 401(k) plan

Paid vacation and sick time

Early morning hours offering work/life

Job summary

Acadia Healthcare’s El Cajon Comprehensive Treatment Center seeks an Administrative Assistant II to support billing, scheduling, and records in a fast-paced OTP environment.

Responsibilities include maintaining files, coordinating office activities, and handling billing information with HIPAA-compliant processes. The role requires 2+ years in medical billing, strong communication, and attention to detail.

Qualifications

• High School Diploma or GED required.
• 2+ years in medical billing and coding.
• Experience in mental health or addiction treatment clinics is a plus.
• Knowledge of insurance claims including Medicare/Medicaid.
• HIPAA regulations and patient data confidentiality.

Responsibilities

• Establish, maintain and retrieve general files for clinic or department.
• Manage and coordinate administrative programs or office activities.
• Create spreadsheets, manage databases, and prepare reports.
• Answer telephones, take messages, or transfer calls.
• Schedule appointments and update calendars.
• Arrange staff meetings and manage mail and faxes.
• Maintain electronic and paper filing systems.
• Perform basic bookkeeping as needed.
• Assist patients with billing information and insurance verification.
• Work with medical terminology and clinic procedures.

Skills

Billing & coding

HIPAA compliance

Medical billing

Insurance claims

Communication skills

Data entry

Education

High School Diploma

Tools

EHR systems

Excel

Billing software

Job description

Acadia Healthcare’s El Cajon Comprehensive Treatment Center seeks an Administrative Assistant II to support billing, scheduling, and records in a fast-paced OTP environment.

Responsibilities include maintaining files, coordinating office activities, and handling billing information with HIPAA-compliant processes. The role requires 2+ years in medical billing, strong communication, and attention to detail.