13 Results for Medical Office Administrator Jobs in Riverside, CA

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Office Manager

Newport Beach, CA
onsite
Temporary / Contract
34.0385 - 43 USD / Hourly
We are looking for an organized and service-focused Office Manager to support daily operations in Newport Beach, California. This Contract position is ideal for someone who thrives in a fast-moving environment, creates a welcoming experience for clients and staff, and keeps administrative processes running smoothly. The role blends front office coordination, operational support, and team-facing responsibilities, with opportunities to contribute to hiring and HR-related activities. Candidates with experience in healthcare, wellness, or similar service-oriented settings will be especially well suited for this opportunity. Responsibilities: • Oversee day-to-day office operations to ensure an efficient, detail-oriented, and well-organized workplace. • Welcome visitors and serve as a primary point of contact, delivering a positive and attentive customer experience. • Manage office inventory by ordering, tracking, and replenishing supplies to support uninterrupted business operations. • Handle administrative tasks such as scheduling, document coordination, record maintenance, and general office support. • Assist with accounts payable activities, including invoice processing, tracking expenses, and supporting accurate financial documentation. • Build strong working relationships with clients, vendors, and internal team members to support collaboration and service excellence. • Contribute to recruiting and HR support activities, including interview coordination, onboarding preparation, and related administrative follow-up. • Maintain organized systems and processes that help the office operate effectively in a high-volume environment.
2026-10-19T00:00:00Z

Office Manager

Pasadena, CA
onsite
Temporary / Contract
23 - 25 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 email your resume and call 626.463.2031 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
2026-10-05T00:00:00Z

Leave of Absence Administrator

Irvine, CA
onsite
Temporary / Contract
30.4 - 35.2 USD / Hourly
We are looking for a Leave of Absence Administrator to support a high-quality employee leave experience in Irvine, California. This Long-term Contract position will oversee leave administration from intake through return-to-work coordination while ensuring consistent compliance with applicable regulations and internal policies. The ideal candidate brings sound judgment, strong organization, and a compassionate communication style when assisting employees and partnering with cross-functional teams. Responsibilities: • Oversee the full lifecycle of employee leave cases, including eligibility review, documentation tracking, approvals, status updates, and return-to-work coordination. • Administer a range of leave programs such as statutory leaves, disability-related absences, parental time off, and personal leave in accordance with company policy and legal requirements. • Work closely with human resources, payroll, and benefits partners to ensure pay handling, benefit continuation, and employee status changes are processed accurately. • Maintain complete and audit-ready records for each case, ensuring documentation is current, confidential, and aligned with federal, state, and local leave regulations. • Guide employees and managers through the leave process with clear, timely, and empathetic communication from initial request through reintegration planning. • Monitor deadlines, certifications, and case milestones to support timely decisions and a smooth employee experience. • Review leave practices regularly and recommend practical improvements that increase efficiency, consistency, and service quality. • Support leave-related process updates and operational changes as needed, including coordination tied to evolving workflows or systems.
2026-10-19T00:00:00Z

Administrative Assistant

Cypress, CA
onsite
Permanent / Full Time
45760 - 52000 USD / Yearly
We are looking for a detail-oriented Administrative Assistant to support daily office operations and provide dependable coordination across administrative, human resources, and document management activities. This position is ideal for someone who thrives in a structured corporate environment, communicates effectively with a wide range of stakeholders, and handles sensitive information with discretion. The role combines front-office support, reporting assistance, employee-related coordination, and records oversight, requiring strong organization, follow-through, and accuracy. Responsibilities: • Oversee day-to-day administrative operations, including front desk support, inbound call handling, data entry, calendar coordination, correspondence, and general office organization. • Coordinate hiring and employee support activities by arranging interviews, assisting with onboarding logistics, maintaining personnel records, and responding to routine employee questions with professionalism and confidentiality. • Maintain contracts, service agreements, policies, procedures, and related business records to ensure documents are current, properly filed, and easy to retrieve. • Support document control practices by organizing files, tracking revisions, and helping preserve compliance with internal standards and recordkeeping requirements. • Prepare and update reports, surveys, inventory records, business license documentation, and fiscal year calendars while meeting deadlines and maintaining accuracy. • Assist with training coordination, employee communications, and recognition activities that help support a positive and well-organized workplace environment. • Work closely with leadership, employees, vendors, and visitors to provide responsive administrative service and facilitate smooth office operations. • Manage multiple priorities independently, identify routine process needs, and follow through on special projects and general administrative assignments as needed.
2026-10-08T00:00:00Z

Administrative Assistant

Monrovia, CA
onsite
Temporary / Contract
22 - 23 USD / Hourly
Opportunities for top Administrative Assistant (Administrative Coordinator / Administrative Associate)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. Please email your resume and call 626.463.2031 for immediate consideration. How you will make an impact<ul><li>Fielding telephone calls</li><li>Receiving and directing visitors</li><li>Word processing, filing and faxing</li><li>Support on diverse projects for other employees as needed</li></ul> 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
2026-10-05T00:00:00Z

Administrative Assistant

Pasadena, CA
onsite
Temporary / Contract
23 - 25 USD / Hourly
Opportunities for top Administrative Assistant (Administrative Coordinator / Administrative Associate)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. Please email your resume and call 626.463.2031 for immediate consideration.· 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
2026-10-05T00:00:00Z

Administrative Assistant

Orange, CA
onsite
Temporary to Hire
22.1635 - 25.663 USD / Hourly
We are looking for an organized Administrative Assistant to support bidding activities and project coordination for a construction-focused team in Orange, California. This contract opportunity is ideal for someone who thrives in a deadline-driven environment, communicates confidently with subcontractors and internal stakeholders, and keeps documentation accurate and well organized. The position plays an important role in preparing proposals, tracking bid activity, and assisting with project paperwork from early pursuit stages through post-award support. Responsibilities: • Identify relevant construction bid opportunities and track them through the full proposal timeline. • Review project documents and submission instructions to ensure bid packages are complete and compliant. • Assemble, organize, and deliver proposals and supporting materials by required deadlines. • Maintain bid schedules, project files, subcontractor records, and related administrative documentation. • Reach out regularly to subcontractors and vendors to gather pricing, quotes, and required qualification documents. • Coordinate meetings, pre-bid events, and project-related communications for internal teams and external partners. • Prepare and distribute requests for information and monitor follow-up items tied to active opportunities. • Support contract documentation and startup paperwork after award while keeping stakeholders informed of status updates. • Serve as a central point of coordination among estimators, project managers, subcontractors, and clients.
2026-10-19T00:00:00Z

Administrative Assistant

Newport Beach, CA
onsite
Temporary to Hire
28.5 - 30 USD / Hourly
We are looking for an Administrative Assistant to support daily office operations in NYC. This contract opportunity is ideal for someone who enjoys creating an organized, welcoming environment while managing a variety of administrative and front-desk tasks. The role requires strong communication, accuracy in data handling, and the ability to respond effectively to incoming inquiries. Responsibilities:• Manage front-desk activities by greeting visitors, directing inquiries, and maintaining an organized office presence.• Handle incoming phone calls with courtesy and efficiency, routing messages and providing timely assistance to callers.• Perform a range of administrative support tasks such as preparing documents, organizing files, and maintaining office records.• Enter and update information in internal databases and spreadsheets with a high degree of accuracy.• Coordinate day-to-day office workflow to help ensure administrative processes run smoothly and efficiently.• Support general receptionist functions, including monitoring shared inboxes and responding to routine requests.• Assist with clerical projects and operational tasks as needed to meet team and business priorities.
2026-10-15T00:00:00Z

Administrative Assistant

Costa Mesa, CA
onsite
Permanent / Full Time
65000 - 70000 USD / Yearly
Administrative AssistantLocation: Costa Mesa or Los Angeles, CACompensation: $65,000-$70,000 DOESchedule: Full-time, onsite A well-established Southern California law firm is seeking an organized and tech-savvy Administrative Assistant to support a busy litigation team handling a high-volume caseload. This is an excellent opportunity to join a collaborative, long-tenured team known for its strong culture, complex matters, and commitment to employee support. Responsibilities<ul><li>Maintain and audit large volumes of case files and documents</li><li>Organize, rename, and manage electronic files and records</li><li>Ensure documents are accurately stored, easily accessible, and up to date</li><li>Support a litigation team handling a high-volume client portfolio</li><li>Assist with administrative and overflow projects as needed</li></ul>Why You'll Love This Opportunity<ul><li>Stable firm with exceptional employee retention</li><li>Collaborative, team-oriented environment</li><li>Exposure to sophisticated, high-profile matters</li><li>Opportunity for growth and additional legal support responsibilities over time</li><li>Supportive leadership team that values employee well-being</li></ul>Compensation & Benefits<ul><li>$65,000-$70,000 base salary</li><li>Medical, dental, and vision coverage</li><li>401(k) plan</li><li>Paid holidays, vacation, and sick time</li><li>Free parking</li><li>FSA, life insurance, and long-term disability coverage</li></ul>
2026-10-14T00:00:00Z

Administrative Assistant

Fallbrook, CA
onsite
Temporary / Contract
22 - 27 USD / Hourly
Robert Half is hiring an Administrative Assistant to support the purchasing and operations teams of an established agricultural and distribution business in Fallbrook! This is an excellent opportunity for someone who enjoys detail-oriented work, coordinating information across departments, and helping ensure orders and inventory records stay accurate. This role goes beyond traditional reception duties. You'll assist with purchase orders, supplier communication, data entry, and operational documentation while working closely with purchasing, warehouse, and accounting personnel. The ideal candidate is dependable, comfortable working with spreadsheets, and able to keep multiple requests organized throughout the day. Responsibilities Include:<ul><li>Enter and update purchase orders, supplier details, and order information.</li><li>Track order confirmations, expected delivery dates, and outstanding shipments.</li><li>Communicate with vendors regarding order status, pricing, and missing documentation.</li><li>Maintain accurate inventory spreadsheets and purchasing records.</li><li>Review documents for missing information, incorrect quantities, and data-entry errors.</li><li>Assist with receiving paperwork and reconcile records against purchase orders.</li><li>Route invoices and supporting documents to the accounting department.</li><li>Update internal databases and maintain organized digital files.</li><li>Prepare routine reports related to purchasing, inventory, and operational activity.</li><li>Coordinate information between purchasing, warehouse, sales, and accounting teams.</li><li>Answer incoming calls and respond to general vendor or customer inquiries.</li><li>Assist with office supply orders, mail, filing, and other administrative needs.</li><li>Follow up on outstanding requests to ensure orders and records are updated promptly.</li></ul>
2026-10-16T00:00:00Z

Administrative Assistant

Adelanto, CA
onsite
Temporary / Contract
21.85 - 25.3 USD / Hourly
We are looking for an experienced and dependable Administrative Assistant to support daily office operations in California. This Contract position is ideal for someone who brings strong attention to detail to the front office, stays organized in a busy administrative setting, and handles routine clerical tasks with accuracy and care. The person in this role will help maintain an efficient workplace by managing documents, assisting visitors and callers, and supporting general administrative needs. Responsibilities: • Welcome visitors and provide a helpful first point of contact within the administrative office. • Answer incoming phone calls, direct inquiries appropriately, and relay messages in a timely manner. • Organize and maintain paper and numeric filing systems so records remain accurate and easy to retrieve. • Scan, copy, and distribute documents while ensuring materials are handled carefully and filed correctly. • Enter administrative information into office records with close attention to detail and data accuracy. • Support day-to-day clerical operations by preparing documents, sorting paperwork, and assisting with routine office requests. • Keep administrative areas orderly and help ensure office materials and records are maintained efficiently.
2026-10-19T00:00:00Z

Administrative Assistant

Adelanto, CA
onsite
Temporary / Contract
18.2115 - 23 USD / Hourly
We are looking for a dependable Administrative Assistant to support daily office operations in Adelanto, California. This Contract position is ideal for someone who brings strong organizational skills, a detail-oriented approach, and confidence handling front-office and clerical tasks. The role will focus on maintaining accurate records, preparing documents, and helping the administrative team keep workflows running smoothly. Responsibilities: • Welcome visitors and provide detail-oriented front-desk support while creating a positive office experience. • Manage incoming phone calls, direct inquiries appropriately, and relay messages in a timely manner. • Organize, sort, and maintain physical records to ensure documents are easy to retrieve and accurately stored. • Prepare copies of forms, reports, and other materials needed for day-to-day administrative activities. • Scan paper documents into digital formats and verify files are saved correctly for future access. • Enter routine information into office systems with a high level of accuracy and attention to detail. • Support general clerical needs within the administrative building, including handling paperwork and office documentation.
2026-10-19T00:00:00Z

Administrative Assistant

Alhambra, CA
onsite
Temporary / Contract
23 - 25 USD / Hourly
Opportunities for top Administrative Assistant (Administrative Coordinator / Administrative Associate)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. Please email your resume and call 626.463.2031 for immediate consideration.· 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
2026-10-05T00:00:00Z

13 results for Medical Office Administrator in Riverside, CA