← Search all jobs

Assistant Office Manager (Temp)

MCM & Associates

Montclair, CA · Posted October 15, 2026

See every open role at MCM & Associates

More in California job market · Healthcare & Hospital Systems · Administration jobs

About the job

Assistant Office Manager opening in CA Located in Montclair and Covina, CA Temporary position with potential to become permanent

Practice Overview:

Temporary Assistant Office Manager opportunity with a busy surgical practice in Southern California

Position will cover a leave of absence with potential to transition into a permanent role

Support office operations across Montclair and Covina locations

Work closely with physicians, clinical staff, administrative team members, and leadership

Ideal candidate will have prior experience in a surgical or specialty practice setting

Strong opportunity for someone with broad front-office, back-office, billing, credentialing, and operational experience

Position Responsibilities:

Assist with day-to-day office management and administrative operations

Support surgery scheduling and coordination

Assist with billing-related tasks and insurance processes

Support provider contracting and credentialing workflows

Assist with HR-related administrative functions and staff coordination

Help with marketing initiatives and practice growth efforts

Maintain organized workflows and support efficient communication between office staff, providers, and patients

Use AthenaOne for practice management and administrative support

Job Qualifications:

Prior medical office management or assistant office management experience preferred

Surgery scheduling experience strongly preferred

Experience with billing, contracting, credentialing, HR management, and marketing preferred

AthenaOne experience strongly preferred

Strong organizational, communication, and multitasking skills

Ability to support multiple locations as needed

Professional, reliable, and comfortable working in a fast-paced surgical practice environment

Benefits / Additional Details:

Temporary position covering leave of absence

Potential to become permanent based on practice needs and performance

Additional compensation and benefit details to be discussed during the interview process

Montclair and Covina offer convenient access to the San Gabriel Valley and Inland Empire, with proximity to major Southern California communities, dining, schools, and regional amenities. Los Angeles