2

Part Time Medical Assistant Jobs in Rialto, CA (NOW HIRING)

Medical Assistant

Ontario, CA ยท On-site

$16.50/hr

Busy urology practice seeking part time back office medical assistant. Must possess excellent organizational, in-person communication skills and attention to detail, along with average to advanced ...

Medical Assistant

Ontario, CA ยท On-site

$16.50/hr

Busy urology practice seeking part time back office medical assistant. Must possess excellent organizational, in-person communication skills and attention to detail, along with average to advanced ...

Medical Assistant- Orange County

Orange, CA ยท On-site

$19 - $24.25/hr

Nurse Practitioners, Medical Assistants, LPNs, & LVNs Part-Time with Potential for Full-Time About Camden Case Management Camden Case Management (CCM) provides tailored support to individuals with ...

El Pollo Loco Team Member

Ontario, CA ยท On-site

$20 - $21/hr

... Assistant Manager, General Manager, and beyond! * Work Attire: EPL logo'd shirt will be provided ... Flexible scheduling: Full-Time or Part-Time * Medical + Dental + Vision Insurance * Meal Discounts

El Pollo Loco Team Member

Yucaipa, CA ยท On-site

$20 - $21/hr

... Assistant Manager, General Manager, and beyond! * Work Attire: EPL logo'd shirt will be provided ... Flexible scheduling: Full-Time or Part-Time * Medical + Dental + Vision Insurance * Meal Discounts

... Assistant Manager, General Manager, and beyond! * Work Attire: EPL logo'd shirt will be provided ... Flexible scheduling: Full-Time or Part-Time * Medical + Dental + Vision Insurance * Meal Discounts

next page

Showing results 1-20

Part Time Medical Assistant information

See Rialto, CA salary details

$13

$19

$27

How much do part time medical assistant jobs pay per hour?

As of Aug 30, 2026, the average hourly pay for part time medical assistant in Rialto, CA is $19.94, according to ZipRecruiter salary data. Most workers in this role earn between $17.12 and $21.92 per hour, depending on experience, location, and employer.

What is a part time medical assistant?

Part time medical assistants are healthcare professionals who work less than full-time hours, typically supporting doctors and nurses in clinics, hospitals, or private practices. Their duties include taking patient vital signs, updating medical records, preparing examination rooms, and performing basic clinical or administrative tasks. Working part time allows for flexible scheduling, making it an ideal option for students, parents, or those seeking a better work-life balance. Despite working fewer hours, part time medical assistants play a crucial role in ensuring smooth healthcare operations.

What does a part time medical assistant do?

Part-time medical assistants perform the same job duties as a full-time medical assistant; the primary difference is that part-time employees work thirty hours or less a week. Part-time medical assistants may handle administrative or clinical duties. As a part-time medical assistant, you may greet patients when they first arrive, ensure patient forms are filled out correctly, answer phone calls, and schedule appointments. In the exam rooms, part-time medical assistants may take vital signs, describe procedures, change wound dressings, administer medication or vaccinations, submit prescriptions, document results from patient sample testing, and prepare the beds for the next patient.

What are the key skills and qualifications needed to thrive as a part time medical assistant, and why are they important?

To thrive as a Part Time Medical Assistant, you need a solid understanding of basic clinical procedures, medical terminology, and administrative tasks, usually supported by a medical assistant certification or diploma. Familiarity with electronic health records (EHR) systems, medical billing software, and standard clinical equipment is commonly required. Excellent communication, organizational skills, and professionalism help you interact effectively with patients and support healthcare teams. These competencies ensure efficient patient care, smooth office operations, and a positive experience for both patients and staff.

What are some common challenges faced by part time medical assistants, and how can they be managed?

Part-time medical assistants often face the challenge of balancing multiple responsibilities within limited work hours, such as assisting with patient care, handling administrative tasks, and supporting clinical procedures. Effective time management and clear communication with the healthcare team are essential to ensure tasks are completed efficiently. Additionally, adapting to varying schedules and quickly acclimating to different team dynamics can help part-time medical assistants stay organized and contribute positively to the clinic or practice.

What is the difference between Part Time Medical Assistant vs Part Time Nurse Aide?

AspectPart Time Medical AssistantPart Time Nurse Aide
Required CredentialsCertified Medical Assistant (CMA) or Registered Medical Assistant (RMA)Nursing Assistant Certification (CNA)
Work EnvironmentClinics, outpatient facilities, doctor's officesSkilled nursing facilities, hospitals, long-term care
Employer & Industry UsageHealthcare clinics, outpatient practicesHospitals, nursing homes, long-term care facilities
Common Search & Comparison IntentUnderstanding roles, certifications, and job dutiesSimilar patient care tasks, certification requirements

Part Time Medical Assistants typically work in outpatient clinics and require CMA or RMA certification, focusing on administrative and clinical tasks. Part Time Nurse Aides work mainly in long-term care settings, with CNA certification, providing basic patient care. While both roles support healthcare delivery, they differ in work environment, certifications, and specific duties.

How many hours does a part-time medical assistant work?

A part-time medical assistant typically works between 20 and 30 hours per week, often with flexible schedules to accommodate clinic needs. The exact hours can vary depending on the employer and the specific role, but part-time positions generally involve fewer hours than full-time roles, which usually require 35-40 hours weekly.

Is a part time medical assistant a good part-time job?

A part-time medical assistant role offers flexible hours, opportunities to gain healthcare experience, and typically requires basic clinical skills and certification. It can be a good option for those seeking part-time work in healthcare or looking to enter the medical field, though pay and hours vary by employer and location.

What are popular job titles related to Part Time Medical Assistant jobs in Rialto, CA?

For Part Time Medical Assistant jobs in Rialto, CA, the most frequently searched job titles are:

What cities near Rialto, CA are hiring for Part Time Medical Assistant jobs?

Cities near Rialto, CA with the most Part Time Medical Assistant job openings:

Infographic showing various Part Time Medical Assistant job openings in Rialto, CA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 11% Part Time, and 5% Contract. Highlights an 77% Physical, 1% Hybrid, and 22% Remote job distribution, with an average salary of $41,485 per year, or $19.9 per hour.

Medical Assistant (Part Time/Bilingual)

Arrowhead Orthopaedics

Redlands, CA โ€ข On-site

$23/hr

Part-time

Re-posted 11 days ago


Job description

Job Type
Part-time
Description
It is our goal to provide the finest Orthopaedic care possible. This philosophy requires that all office staff and providers be sensitive and responsive to patients' needs and preferences. To ensure that we hire and retain the quality of staff needed for implementing our philosophy of service, we have adopted the following job description for this position.
The position requires that the employee be available forty hours per week, and that also the employee be flexible in his/her schedule to provide efficient service for the group. The employee however, will be expected to work no more than five days per week.
Many of the responsibilities require that you have a working knowledge of computers and the ability to learn the proper use of the programs utilized in this office, or those that which may be necessary to meet the needs of the practice.
The hours, pay scale, and benefits will be defined as agreed upon.
BASIC FUNCTION:
Under the supervision of the Back Office Supervisor, the Clinic Medical Assistant shall be responsible for assisting their assigned provider in clinic with all aspects of the patients' visit.
RESPONSIBILITIES:
Work is primarily performed in the Clinic located in Arrowhead Orthopaedics' offices. The duties of the Clinic Medical Assistant are of high volume, and the quality of duties performed is needed to be at a high level. The employee will come into contact on a daily basis with confidential patient files. The Clinic Medical Assistant must be able to handle this information with the highest degree of privacy, discretion, and professionalism. The Clinic Medical Assistant is required to be available to the physician and patients while in clinic, and is only authorized to leave an ongoing clinic with the direct permission by the Back Office Supervisor. The Clinic Medical Assistant is responsible for accomplishing the duties set forth below:
General Activities (There may be other duties required of this position not listed below):
  1. Ensure that authorization is complete for the patient visit.
  2. Ensure that all necessary diagnostic studies and reports are available for the provider to review.
  3. Ensure proper documentation in our EMR system for patients' visits. This includes, but is not limited to, using the appropriate template and completing the history portion including medication, past medical and surgical history, weighing all new patients, and taking vitals.
  4. Document in EMR any changes in patients' conditions since last visit.
  5. Bill all charges for services rendered and make sure that there is documentation in EMR justifying the charges.
  6. Create proper documentation in EMR as needed for any diagnostic testing or therapy or surgical procedures ordered by the provider, and forward the appropriate authorization.
  7. Act as the liaison between the patient and the provider.
  8. Return all patient phone calls the same day and document in each patient's chart any instructions or concerns.
  9. Work with the provider's Patient Services Representative and the Back Office Supervisor to ensure that the provider is scheduled appropriately.
  10. Communicate with front desk staff any delay in the provider's schedule for the day.
  11. Keep exam rooms stocked with medical supplies and linen.
  12. Clean and empty rooms of dirty linen and red bag waste daily.
  13. Clean dirty instruments and prepare them for sterilization on assigned day each week.
  14. Perform other responsibilities as may be called on by the Back Office Supervisor.

RELATIONSHIPS:
The Clinic Medical Assistant should observe and conduct the following relationships:
The employee shall be responsible directly to the Back Office Supervisor. The employee shall report to the Back Office Supervisor and his/her assignees any progress, reports, requests, concerns, problems, and/or expectations in relation to the responsibilities of the position. Such communication may be verbal or written as deemed necessary by the employee or as directed by the Back Office Supervisor or his/her assignee.
The employee shall interact with other office and clinical staff in the Practice. Such interactions should be collegial, professional, and contributing to the safety and pleasantness of the work environment at Arrowhead Orthopaedics.
The employee shall interact with patients, medical groups, adjustors, nurse case managers, hospitals, and Primary Care Physicians and their offices. Such communication should always reflect the total commitment of the office to quality care and customer satisfaction. All communication should be professional and any unresolved conflicts are to be reported to the Back Office Supervisor.
This job description in no way states or implies that these are the only duties to be performed by this employee. The Medical Assistant will be required to follow any other instructions and to perform any other related duties as assigned by the supervisor and his/her assignees. Arrowhead Orthopaedics reserves the right to update, revise or change this job description and related duties at any time.
Requirements
Performance Requirements:
  • To perform this job successfully, an individual must be able to perform satisfactorily job duties, demonstrate excellent work habits, deliver superior service, and exhibit the highest degree of professionalism.
  • Employ positive communication skills and exercise professional interpersonal abilities (tack, diplomacy, and respect) with patients and co-workers always.
  • Maintain a high degree of professionalism in the workplace, including appearance, communication, attendance, reliability, and teamwork.
  • Maintain a high level of organization, including an orderly and neat work area and excellent time management skills, leading to the highest level of productivity.
  • Demonstrate a desire to succeed and willingness to help others succeed.
  • Demonstrate support and comply with all Safety program elements including adherence to policies, exercise of safe work practices, participation in training, use of protective equipment, and reporting all safety concerns, hazards, and non-compliant practices.
  • Serve as an employee for Arrowhead Orthaepedics, following the code of conduct, displaying the highest level of ethics and integrity in action, thoughts and conduct.

Skill and Education Requirements:
  • High school diploma or equivalence required.
  • Medical Assistant Certificate or Diploma preferred
  • CPR Certification required
  • 2 to 3 years' work experience in Workers Compensation cases
  • Ability to type a minimum of 40 words per minute.
  • Proficient in operating a computer, scanner, and other office equipment.
  • Working knowledge of Microsoft Outlook and other healthcare-related software applications.
  • Strong telephone etiquette and customer service skills.
  • Excellent verbal and written communication skills with patients, providers, and staff.
  • Ability to multitask, prioritize responsibilities, and work effectively in a fast-paced, high-stress environment.
  • Strong organizational, leadership, and team coordination abilities.
  • Ability to maintain patient confidentiality and comply with HIPAA regulations.
  • Attention to detail and accuracy in documentation and recordkeeping.
  • Demonstrated experience assisting providers with patient care, procedures, and clinical documentation.

Typical Physical Demands:
Requires sitting and walking, with daily occasional stooping, reaching, and bending.
Occasional lifting up to twenty pounds.
Very rarely lifting up to 100 pounds.
Hearing must be in the normal range for telephone and personal communication.
Requires manual dexterity sufficient to operate keyboards and other office equipment.
Certificates, pre-employment requirements:
  • Required to submit and obtain a negative result in the pre-employment drug screening.
  • Ability to pass a background check.

E-Verify Participation Notice
AO is an E-Verify employer. Candidates must be legally authorized to work in the United States. Employment eligibility will be verified in accordance with applicable federal requirements.
Salary Description
$23.00+ Hourly