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22 results for Medical Office Administrator in Ontario, CA

Medical Administrative Assistant

Santa Monica, CA
onsite
Temporary to Hire
26 - 37 USD / Hourly
We are looking for a detail-oriented Medical Administrative Assistant to support the Medical Staff department in Santa Monica, California. This Medical Administrative Assistant position is ideal for someone who excels at coordinating administrative processes, maintaining accurate records, and keeping compliance-related documentation current in a busy healthcare setting. The role also involves organizing department meetings, preparing documentation, and communicating effectively with physicians, staff, and leadership. Success in this position requires sound judgment, strong organizational skills, and the ability to handle confidential information with care. Key Responsibilities:• Oversee the tracking of time-sensitive items such as licenses, certifications, and other required medical staff documents to help maintain compliance.• Keep credentialing and departmental records accurate, complete, and regularly updated across internal files and systems.• Arrange department meetings by managing calendars, confirming attendance, and preparing agendas and supporting materials.• Record clear, thorough meeting minutes and distribute finalized documentation promptly to appropriate stakeholders.• Perform document control, filing, and data entry tasks to ensure information is organized and accessible.• Follow up with physicians, team members, and leadership regarding outstanding paperwork, renewals, and submission deadlines.• Provide day-to-day administrative support for the Medical Staff department, including general office coordination and communication assistance. Benefits: Medical, Dental and Vision Insurance. 401K Retirement, Sick Time Off and Tuition Reimbursement.
2026-04-21T00:00:00Z

Office Administrator

Los Angeles, CA
onsite
Permanent / Full Time
160000 - 200000 USD / Yearly
A prestigious AmLaw 100 law firm is seeking an experienced Office Administrator. This is a highly visible leadership role supporting a collaborative office of approximately 100 professionals within a firm of 600+ attorneys nationwide. This firm is known for its full-service platform, strong federal practice, and collegial culture, offering the opportunity to work closely with attorneys and firm leadership while managing the day-to-day operations of a dynamic office. Key Responsibilities• Manage workflows, performance evaluations, disciplinary actions, and compensation discussions• Work closely with attorneys and leadership to ensure operational efficiency and a positive office culture• Coordinate office initiatives, events, and operational projects• Maintain strong communication across departments including HR, operations, and firm leadership This is a hands-on leadership role requiring someone who enjoys being visible in the office, interacting with attorneys and staff, and rolling up their sleeves to support operations as needed. Benefits• Comprehensive Medical, Dental, and Vision insurance• Paid Time Off• 401(k) retirement plan• Competitive benefits package offered by a national AmLaw 100 firm To apply, submit resumes to Vice President, Quidana Dove at Quidana.Dove<at>RobertHalf.<com>
2026-04-10T00:00:00Z

Medical Staff Coordinator

Santa Monica, CA
onsite
Temporary to Hire
32 - 45 USD / Hourly
We are looking for a Medical Staff Coordinator to support credentialing and privileging activities for physician staff in Santa Monica, California. This Medical Staff Coordinator plays an important role in maintaining accurate provider records, supporting compliance efforts, and coordinating documentation for appointment and reappointment workflows. The ideal candidate brings prior experience in a hospital or healthcare environment, strong working knowledge of MD Staff, and the ability to manage sensitive information with accuracy and care. Key Responsibilities:• Oversee the end-to-end credentialing cycle for physicians, including new appointments, renewals, and ongoing status maintenance.• Review and validate provider documentation such as licenses, education, certifications, employment history, and references.• Administer privilege requests and updates by tracking clinical privileges and ensuring alignment with governing bylaws and organizational standards.• Maintain complete and current practitioner files within the MD Staff platform, ensuring data accuracy and documentation readiness.• Track expiring credentials and follow up proactively to obtain renewed licenses, certifications, and other required materials before deadlines.• Assemble credentialing packets and prepare supporting materials for review by committees, leadership groups, and governing bodies.• Help uphold adherence to accreditation and regulatory expectations, including Joint Commission standards and internal medical staff requirements.• Serve as a point of contact for physicians, department leaders, and stakeholders regarding application progress, missing items, and approval status.• Contribute to audits, survey preparation, policy revisions, and process improvement initiatives related to medical staff services. Benefits: Medical, Dental and Vision Insurance. 401K Retirement, Sick Time Off and Tuition Reimbursement.
2026-04-22T00:00:00Z

Office Manager

Pasadena, CA
onsite
Temporary / Contract
26 - 28 USD / Hourly
We currently have excellent ongoing opportunities for highly skilled and motivated Office Managers to lead operations at a growing company. Are you a deeply passionate self-starter who is looking to grow their career? Then we have a position for you. Please apply today for immediate consideration.How you will make an impact· Leading overall office administration· Handling copy services, word processing, mail and distribution services, office reception, office equipment, utility services and communication systems· Evaluating and improving office production· Assisting in developing and revising office policies and procedure for improved work flow· Assisting the Operations Manager and Director in monitoring budget for office related items and staff
2026-04-21T00:00:00Z

Office Manager

Laguna Beach, CA
onsite
Temporary to Hire
23.75 - 27.5 USD / Hourly
We are looking for an organized and detail-oriented Office Manager to join our team in Laguna Beach, California. This is a Contract to permanent position that offers the opportunity to manage essential administrative and operational functions in a dynamic environment. The ideal candidate will excel in both administrative tasks and digital systems management, contributing to the smooth functioning of our office. Responsibilities: • Design and produce weekly bulletins using Adobe InDesign. • Maintain and update parish records, including documentation for baptisms, weddings, and funerals. • Coordinate logistics for special events, ensuring effective communication with relevant stakeholders. • Provide support for leadership meetings, including preparing agendas and managing follow-ups. • Oversee payroll processing and ensure accurate financial workflows. • Manage the online giving system and maintain structured digital filing systems. • Administer and oversee Google Workspace, calendars, and operational reporting. • Update and maintain the website's architecture and content calendar. • Facilitate digital outreach efforts to engage the parish community. • Order and manage office supplies to ensure smooth day-to-day operations.
2026-04-23T00:00:00Z

Medical AR Insurance Specialist

Los Angeles, CA
onsite
Temporary / Contract
23.75 - 27.5 USD / Hourly
We are looking for an experienced Medical AR Insurance Specialist its team. In this role, the Medical AR Insurance Specialistwill focus on medical collections and insurance claims, ensuring accurate follow-up and resolution of outstanding balances. This is an excellent opportunity for a Medical AR Insurance Specialist to contribute your expertise in managed care and medical billing within a dynamic healthcare environment. Responsibilities:• Conduct thorough follow-ups on accounts aged 120 to 210 days to recover outstanding balances.• Investigate and resolve written-off accounts to maximize revenue recovery.• Process approximately 50-60 claims per day with attention to detail and accuracy.• Collaborate with managed care providers such as LA Care, Kaiser, and others to address billing issues.• Handle medical denials and appeals, ensuring timely and effective resolution.• Review and manage accounts associated with various insurance carriers.• Analyze and document collection efforts for reporting and compliance purposes.• Maintain up-to-date knowledge of relevant medical billing and insurance policies.• Communicate effectively with internal teams to coordinate account resolution strategies.
2026-04-21T00:00:00Z

Medical AR Insurance Specialist

Los Angeles, CA
onsite
Temporary / Contract
23.75 - 28 USD / Hourly
We are looking for an experienced Medical AR Insurance Specialist its team. In this role, the Medical AR Insurance Specialist will focus on medical collections and insurance claims, ensuring accurate follow-up and resolution of outstanding balances. This is an excellent opportunity for a Medical AR Insurance Specialist to contribute your expertise in managed care and medical billing within a dynamic healthcare environment. This role is a hybrid tole. Responsibilities:• Conduct thorough follow-ups on accounts aged 120 to 210 days to recover outstanding balances.• Investigate and resolve written-off accounts to maximize revenue recovery.• Process approximately 50-60 claims per day with attention to detail and accuracy.• Collaborate with managed care providers such as LA Care, Kaiser, and others to address billing issues.• Handle medical denials and appeals, ensuring timely and effective resolution.• Review and manage accounts associated with various insurance carriers.• Analyze and document collection efforts for reporting and compliance purposes.• Maintain up-to-date knowledge of relevant medical billing and insurance policies.• Communicate effectively with internal teams to coordinate account resolution strategies.
2026-04-21T00:00:00Z

Medical Billing Specialist

Van Nuys, CA
onsite
Temporary to Hire
25.3365 - 29.337 USD / Hourly
We are looking for a skilled Medical Billing Specialist to join our team in Los Angeles, California. This Contract to permanent position offers an exciting opportunity to manage comprehensive billing operations for a multi-specialty healthcare practice, with a focus on Ear, Nose, and Throat services. The ideal candidate will have expertise in claim submission, collections, and patient communications, as well as experience with out-of-network and concierge billing models. Responsibilities: • Manage the full cycle of medical billing processes, including claim submissions, payer follow-ups, payment resolutions, and collections. • Review and ensure the accuracy of coding and charges for services provided by multi-specialty healthcare providers. • Conduct quality assurance checks and audits of billing tasks performed by team members. • Handle out-of-network billing and provide support for concierge-model practices. • Investigate and resolve unpaid, denied, or underpaid claims to minimize accounts receivable backlog. • Assist with collections and reimbursement strategies to optimize revenue. • Maintain detailed and accurate billing records, including comprehensive account documentation. • Ensure compliance with payer policies, industry standards, and internal workflows. • Utilize systems such as Kareo/Tebra and eClinicalWorks effectively to streamline billing operations.
2026-04-21T00:00:00Z

Administrative Assistant

Glendale, CA
onsite
Temporary / Contract
25 - 26 USD / Hourly
We currently have ongoing positions for a results-oriented Administrative Assistants who are deeply passionate about growing their career. In this role, you will perform various administrative and office support duties. Do you love mail merging, pivot tables and presentation design? Then we have a position for you.· Answer phones and greet visitors in English and Spanish· Schedule appointments and maintain calendars· Schedule and coordinate staff and other meetings· Collate and distribute mail· Prepare communications, such as memos, emails, invoices, reports and other correspondence· Write and edit documents from letters to reports and instructional documents· Create and maintain filing systems, both electronic and physical If you are a self-starter who is passionate about supporting a dynamic and growing company and looking to thrive in a creative environment, we would love to hear from you! Contact us now
2026-04-21T00:00:00Z

Administrative Assistant

Laguna Niguel, CA
onsite
Temporary / Contract
19.7885 - 22.913 USD / Hourly
We are looking for a detail-oriented Administrative Assistant to support daily operations in Laguna Niguel, California. This Long-term Contract opportunity is ideal for someone who thrives in a fast-moving office setting and can balance multiple priorities with professionalism. The role will provide direct administrative support, coordinate schedules and meetings, and help maintain efficient communication across the department. Candidates should be comfortable handling clerical tasks, assisting leadership, and learning new systems as needed. Responsibilities: • Support the operations team with a wide range of administrative and clerical activities to keep day-to-day functions running smoothly. • Organize and maintain multiple calendars, ensuring appointments, meetings, and deadlines are accurately scheduled and updated. • Develop meeting materials such as agendas, coordinate conference logistics, and document key discussion points and action items during sessions. • Arrange business travel, lodging, and related itineraries for executives and managers while confirming schedules and necessary details. • Manage inbound communications, respond to routine inquiries, and direct messages to the appropriate contacts in a timely manner. • Enter, update, and maintain records and office information with a high degree of accuracy and confidentiality. • Assist with front-desk and receptionist-related tasks, including greeting visitors and supporting general office coordination. • Partner with recruiters and leadership to help track and follow up on activity related to onboarding or advisor and broker recruiting efforts. • Take on additional administrative assignments and adapt to new tools or technology platforms as business needs evolve.
2026-04-23T00:00:00Z

Administrative Assistant

West Los Angeles, CA
onsite
Temporary / Contract
20 - 25 USD / Hourly
We're working with a construction company who are looking for an admin assistant to join their team to support an upcoming project. You'll be responsible for processing invoices, expense reports, ordering office supplies, scheduling meetings and helping to provide day to day clerical support.
2026-04-01T00:00:00Z

Administrative Assistant

Los Angeles, CA
onsite
Temporary to Hire
21 - 27 USD / Hourly
We are looking for a dedicated Administrative Assistant to support the Nurse Practitioner and forensic clinicians as part of a specialized program in Los Angeles, California. This program provides essential treatment and supervision to individuals transitioning from state hospitals back into the community. This Administrative Assistant role offers an excellent chance to contribute to meaningful work in the mental health and criminal justice fields. Key Responsibilities:• Provide administrative support to the Nurse Practitioner, ensuring smooth daily operations.• Assist in coordinating medical and psychiatric care for program participants.• Manage the collection and organization of medical documents from external providers.• Maintain accurate tracking of paperwork flow in and out of the office.• Coordinate transportation logistics for clients as needed.• Conduct regular reviews of documentation to ensure compliance with quality standards.• Communicate effectively through written and oral messages, ensuring accuracy and professionalism.• Prepare various documents and correspondence for the Nurse Practitioner.• Uphold strict confidentiality in handling sensitive information. Benefits: Medical, Dental and Vision Insurance. 401K Retirement, Sick Time Off and Tuition Reimbursement.
2026-04-22T00:00:00Z

Administrative Assistant

Orange, CA
onsite
Temporary to Hire
26.6 - 30.8 USD / Hourly
We are looking for a highly organized and detail-oriented Administrative Assistant to join our team on a contract-to-permanent basis in Orange, California. In this role, you will provide critical support to the Inside Sales team by managing sales reports, processing orders and quotes, and ensuring seamless communication between customers and internal departments. This position requires a proactive individual capable of handling multiple priorities independently while maintaining accuracy and efficiency. Responsibilities: • Prepare and maintain daily, weekly, and monthly sales reports, including bookings, shipments, and forecasts. • Track and follow up on pending quotes, prepaid orders, and open order statuses to ensure timely completion. • Assist in entering and processing sales orders and quotes, ensuring accuracy and compliance. • Organize and maintain records of sales orders, invoices, and quality documentation for easy access and compliance. • Distribute shipment tracking information and required documentation to customers in a timely manner. • Coordinate customer visits, meetings, and internal team communications to support smooth operations. • Provide backup administrative support during peak workloads and assist with special projects as needed. • Support the development and maintenance of standard operating procedures (SOPs) to improve workflow efficiency. • Assist with trade show coordination, marketing activities, and other departmental initiatives. • Manage office supplies and provide general administrative assistance to the team.
2026-04-22T00:00:00Z

Administrative Assistant

Pasadena, CA
onsite
Temporary / Contract
25 - 26 USD / Hourly
We currently have ongoing positions for a results-oriented Administrative Assistants who are deeply passionate about growing their career. In this role, you will perform various administrative and office support duties. Do you love mail merging, pivot tables and presentation design? Then we have a position for you. · Answer phones and greet visitors· Schedule appointments and maintain calendars· Schedule and coordinate staff and other meetings· Collate and distribute mail· Prepare communications, such as memos, emails, invoices, reports and other correspondence· Write and edit documents from letters to reports and instructional documents· Create and maintain filing systems, both electronic and physical If you are a self-starter who is passionate about supporting a dynamic and growing company and looking to thrive in a creative environment, we would love to hear from you! Contact us now
2026-04-21T00:00:00Z

Administrative Assistant

Arcadia, CA
onsite
Temporary / Contract
25 - 26 USD / Hourly
We currently have ongoing positions for a results-oriented Administrative Assistants who are deeply passionate about growing their career. In this role, you will perform various administrative and office support duties. Do you love mail merging, pivot tables and presentation design? Then we have a position for you. · Answer phones and greet visitors· Schedule appointments and maintain calendars· Schedule and coordinate staff and other meetings· Collate and distribute mail· Prepare communications, such as memos, emails, invoices, reports and other correspondence· Write and edit documents from letters to reports and instructional documents· Create and maintain filing systems, both electronic and physical If you are a self-starter who is passionate about supporting a dynamic and growing company and looking to thrive in a creative environment, we would love to hear from you! Contact us now
2026-04-21T00:00:00Z

Administrative Assistant

El Monte, CA
onsite
Temporary / Contract
21.85 - 25.3 USD / Hourly
We are seeking a detail-oriented and highly organized Administrative Assistant to support daily office operations. This role is responsible for handling a variety of administrative and clerical tasks to ensure the office runs efficiently. The ideal candidate is proactive, professional, and able to manage multiple priorities in a fast-paced environment. Key Responsibilities<ul><li>Provide general administrative support to management and staff</li><li>Answer and direct phone calls, emails, and other correspondence</li><li>Schedule meetings, appointments, and maintain calendars</li><li>Prepare reports, presentations, and documents as needed</li><li>Maintain organized filing systems (both electronic and paper)</li><li>Assist with data entry and database management</li><li>Coordinate office supplies and place orders as needed</li><li>Support onboarding tasks and internal communications</li><li>Handle incoming and outgoing mail and packages</li><li>Perform additional administrative duties as assigned</li></ul>
2026-04-23T00:00:00Z

Administrative Assistant

Los Angeles, CA
onsite
Temporary / Contract
20.9 - 22 USD / Hourly
We are looking for a detail-oriented Administrative Assistant to join our team in Los Angeles, California. In this long-term contract role, you will play a vital part in ensuring smooth daily operations by managing administrative tasks and maintaining organizational efficiency. This position is ideal for someone who excels in multitasking and thrives in a dynamic work environment. Responsibilities: • Provide comprehensive administrative support to the team, ensuring tasks are completed efficiently and accurately. • Maintain and organize filing systems to ensure easy access to important documents. • Handle the processing, sorting, and distribution of incoming and outgoing mail. • Assist with shipping and receiving tasks, including preparing packages and coordinating deliveries. • Answer inbound calls professionally and direct inquiries to the appropriate departments. • Perform data entry tasks to update and maintain accurate records. • Take on receptionist duties, such as greeting visitors and managing front desk operations. • Support various office functions to ensure seamless day-to-day activities.
2026-04-14T00:00:00Z

Administrative Assistant

Santa Ana, CA
onsite
Temporary to Hire
26.6 - 30.8 USD / Hourly
We are looking for a detail-oriented and organized Administrative Assistant to join our team in Santa Ana, California. In this Contract to permanent position, you will play a vital part in supporting our Human Resources department by managing administrative tasks, maintaining accurate records, and assisting with various HR-related processes. This position offers an excellent opportunity for someone passionate about HR and seeking to develop their career in an engaging and dynamic environment. Responsibilities: • Maintain and update HR systems with employee information, including new team members, changes, and other personnel data. • Organize and manage confidential employee records, ensuring accuracy and security in both electronic and hard copy formats. • Assist with the onboarding process for new team members, including reviewing and verifying employment documents. • Respond to routine HR inquiries and handle employment verification requests in a timely manner. • Compile data and prepare reports or summaries related to HR activities and metrics. • Coordinate and support HR meetings, projects, and employee-related events. • Prepare, distribute, and organize internal documents, policies, and acknowledgments. • Provide administrative support during internal audits and ensure compliance with company policies. • Assist with various HR administrative tasks and special projects as needed.
2026-04-22T00:00:00Z

Administrative Assistant

Monterey Park, CA
onsite
Temporary / Contract
22.8 - 24.2 USD / Hourly
We are looking for an Administrative Assistant to support day-to-day operations for a development and fundraising team in California. This Long-term Contract position is ideal for someone who can manage communications, maintain accurate records, and keep schedules organized in a fast-paced work environment. The right candidate will bring strong administrative judgment, strong customer service skills, and confidence using Microsoft Office tools to support internal coordination and external outreach. Responsibilities: • Manage incoming phone calls and email inquiries, providing clear responses and directing requests to the appropriate contacts. • Coordinate calendars, schedule meetings, and arrange appointments to support team priorities and deadlines. • Enter, update, and maintain records with accuracy while ensuring information is organized and easy to access. • Prepare routine correspondence, reports, presentations, and other administrative documents using Microsoft Word, Excel, PowerPoint, and Outlook. • Support outreach efforts by handling both inbound and outbound communications with courtesy. • Assist with general office coordination, including tracking tasks, following up on action items, and helping maintain efficient daily workflows. • Work closely with internal stakeholders to support administrative needs related to development and fundraising activities.
2026-04-23T00:00:00Z

Medical Billing - eClinicalWorks

Los Angeles, CA
remote
Temporary / Contract
18 - 23 USD / Hourly
We are seeking an experienced (Remote) Medical Billing Specialist to manage end‑to‑end billing functions using eClinicalWorks. This remote role is responsible for claim submission, payer follow‑up, collections, and quality control across multiple providers, with exposure to concierge and out‑of‑network billing models. The ideal candidate is detail‑oriented, payer‑savvy, and comfortable managing both payer and patient communications while driving A/R resolution. eClinicalWorks is a MUST, Key Responsibilities: <ul><li>Using eClinicalWorks for a medical billing and collections functions. </li><li>Manage end‑to‑end medical billing, including claim submission, follow‑ups, payment resolution, and collections</li><li>Review charges and support coding accuracy for approximately 3–4 multi‑specialty providers prior to claim submission</li><li>Perform quality control and audit reviews of billing work completed by the billing team</li><li>Handle courtesy out‑of‑network (OON) billing and support concierge‑model practices</li><li>Manage high‑volume phone and email correspondence with insurance payors and patients</li><li>Follow up on unpaid, denied, or underpaid claims to reduce A/R backlog</li><li>Support sales collections and reimbursement initiatives</li><li>Maintain accurate billing documentation and detailed account notes</li><li>Ensure compliance with payer requirements, internal workflows, and industry best practices.</li></ul> Benefits: Medical, Dental and Vision Insurance. 401K Retirement, Sick Time Off and Tuition Reimbursement.
2026-04-17T00:00:00Z

Medical Biller - ENT

Van Nuys, CA
remote
Temporary / Contract
19 - 25 USD / Hourly
We are seeking an experienced Medical Billing Specialist to manage end‑to‑end billing functions for an Ear, Nose & Throat (ENT) healthcare practice. This remote role is responsible for claim submission, payer follow‑up, collections, and quality control across multiple providers, with exposure to concierge and out‑of‑network billing models. The ideal candidate is detail‑oriented, payer‑savvy, and comfortable managing both payer and patient communications while driving A/R resolution. Key Responsibilities: <ul><li>Manage end‑to‑end medical billing, including claim submission, follow‑ups, payment resolution, and collections</li><li>Review charges and support coding accuracy for approximately 3–4 multi‑specialty providers prior to claim submission</li><li>Perform quality control and audit reviews of billing work completed by the billing team</li><li>Handle courtesy out‑of‑network (OON) billing and support concierge‑model practices</li><li>Manage high‑volume phone and email correspondence with insurance payors and patients</li><li>Follow up on unpaid, denied, or underpaid claims to reduce A/R backlog</li><li>Support sales collections and reimbursement initiatives</li><li>Maintain accurate billing documentation and detailed account notes</li><li>Ensure compliance with payer requirements, internal workflows, and industry best practices.</li></ul> Benefits: Medical, Dental and Vision Insurance. 401K Retirement, Sick Time Off and Tuition Reimbursement.
2026-04-09T00:00:00Z

Medical Insurance Collections Specialist

Buena Park, CA
onsite
Temporary / Contract
23.02 - 29.11 USD / Hourly
A Healthcare Company is seeking an experienced and motivated Medical Insurance Collections Specialist to join our team. This role is ideal for professionals with a strong background in medical billing and insurance collections who thrive in a fast-paced healthcare environment. Bilingual fluency in English and Spanish is required to support our diverse patient and client population.Responsibilities:<ul><li>Manage accounts receivable and pursue outstanding medical insurance claims from payers</li><li>Communicate effectively with insurance companies, patients, and internal teams to resolve outstanding balances</li><li>Conduct thorough follow-up on unpaid or underpaid claims, ensuring timely reimbursements</li><li>Interpret EOBs (Explanation of Benefits) and remittance advice</li><li>Accurately document collection efforts and outcomes in the billing system</li><li>Negotiate payment arrangements and address denials or appeals</li><li>Ensure compliance with state, federal, and company guidelines regarding patient confidentiality and collections practices</li></ul>
2026-04-06T00:00:00Z