What Is a Medical Assistant? Role, Duties, and Certification Explained
A medical assistant is an allied health professional who supports physicians and other providers by handling both clinical and administrative tasks in clinics, physician offices, and similar settings. If you are considering entering the field, the main decision points are which credential to pursue (RMA or CMA), whether you meet eligibility requirements, and how you will maintain certification once you are working.
What Medical Assistants Do
The role is defined by its mix of front-office and back-office responsibilities. Exact duties vary by employer, state law, and setting, but typical tasks include:
Clinical duties
- Taking patient vital signs and recording medical history
- Preparing patients for examinations and assisting during procedures
- Collecting and preparing specimens, and performing basic laboratory tasks
- Administering medications or injections where permitted by state scope-of-practice rules
Administrative duties
- Scheduling appointments and managing patient records
- Handling billing, coding, and insurance paperwork
- Communicating with patients, pharmacies, and other providers
Because the role spans both areas, medical assistants are often the staff members who keep a practice running smoothly between patient visits.
Where Medical Assistants Work
Medical assistants are employed across a range of settings, including:
| Setting | Typical focus |
|---|---|
| Physician offices and private clinics | Combined clinical and administrative support |
| Hospitals and outpatient departments | Clinical support, often in specialty units |
| Urgent care and specialty practices | Procedure assistance and patient intake |
| Other allied health environments | Varies by employer and credential |
The AMT website notes that its members work across allied health fields, and the medical assistant credential (RMA) is one of several credentials the organization offers.
RMA vs. CMA: What's the Difference?
Two credentials come up most often for medical assistants:
- RMA (Registered Medical Assistant) — offered by American Medical Technologists (AMT). AMT describes itself as a not-for-profit association of allied health professionals, accredited by NCCA, and operating since 1939.
- CMA (Certified Medical Assistant) — a separate credential offered by a different certifying body.
Both signal that a medical assistant has met a certification standard, but they come from different organizations with their own eligibility rules, exams, and recertification requirements. When choosing between them, check which credential employers in your target area prefer, and compare each organization's eligibility and renewal requirements directly.
AMT also frames the broader distinction between "registered" and "certified" credentials in allied health — a useful distinction to understand if you are comparing titles across professions.
How to Become a Certified Medical Assistant
The general path looks like this:
- Complete an accredited education or training program (or verify whether your work experience qualifies you under a certifying body's alternate pathway).
- Confirm eligibility with the certifying organization. AMT's site includes an eligibility check tool and a credential selector that lists Medical Assistant (RMA) among its options.
- Apply and sit for the certification exam.
- Receive your credential and, with AMT, automatically gain member benefits once certified.
- Maintain certification through continuing education and recertification requirements.
AMT's site also supports certifying others — it offers pathways for individuals certifying themselves, instructors certifying students or graduates, and employers certifying employees or apprentices.
Maintaining Certification and Career Growth
Certification is not a one-time event. AMT provides ongoing support to help members maintain skills and competencies, including:
- Continuing education (CE) — earn credit online or by attending local and national meetings
- Career development tools — resources for advancing within the profession
- Networking and leadership opportunities — ways to participate in the professional community
As one AMT-certified medical assistant, Aubrey Wiggins, RMA (AMT), puts it: "Being an RMA is such a rewarding job. Seeing someone's life improve and being part of that change is incredible."
Key Takeaways
- A medical assistant handles both clinical and administrative tasks, making the role a bridge between patients and providers.
- The two main credentials are RMA (offered by AMT) and CMA (offered by a separate body); compare eligibility, exam, and renewal requirements before choosing.
- Certification typically requires completing a program or qualifying through experience, passing an exam, and maintaining CE.
- AMT has offered allied health certification since 1939 and is NCCA-accredited, with member benefits included once certified.
For eligibility specifics and current requirements, check the certifying organization's official site directly, since rules and fees can change.