Medical Assistant - Per Diem

Carbon Health; Rancho Cucamonga (CA); On-site; USD 28,000 - 39,000; Full time

Job summary

Carbon Health is seeking a Medical Assistant for urgent care operations in Rancho Cucamonga. The role supports providers, handles direct patient care tasks, phlebotomy, injections, EKGs, and documentation in a fast-paced clinic.

Expect 10-hour shifts with weekend rotation, strong clinical skills, and excellent communication. Certification and CPR/BLS are required; previous urgent care or ambulatory care experience is preferred.

Qualifications

• Minimum 1 year as Medical Assistant or similar clinical support role.
• Certification required: CMA, RMA, CCMA or NCMA; CPR/BLS required.
• Proficient in phlebotomy, injections, and EKGs per provider orders.
• Experience with medical records documentation and confidentiality.

Responsibilities

• Greet and room patients; document vital signs and histories.
• Perform phlebotomy, injections, and EKGs per protocols.
• Prepare exam rooms and maintain infection control standards.
• Support providers during examinations and procedures.
• Manage medical records and timely documentation.
• Answer phones professionally and route messages.
• Coordinate patient flow to minimize wait times.
• Assist with minor urgent care tasks as needed.

Skills

Vital signs documentation

Phlebotomy

Injections administration

EKG administration

Medical records management

Phone etiquette

Infection control

Team collaboration

Education

Medical Assistant Certification (CMA/RMA/CCMA/NCMA)

CPR/BLS certification

Job description

About this position

As a physician-founded and led organization, ensuring everyone has access to quality healthcare is what inspires us. The magic we’ve created lies in Carbon Health’s custom EHR and the collaboration among clinical teams, engineers, and designers who work side-by-side to deliver innovation like our hands free AI charting tool. That’s why we hire people who genuinely care about patients, solving healthcare challenges, and making a positive impact every day. Join us and help change the future of healthcare for the better.

About the role

• This is a per diem role . The Urgent Care Medical Assistant in Clinic Operations supports providers in delivering timely, high-quality patient care in a fast-paced, walk-in urgent care setting. This full-time hourly role requires flexibility, strong clinical skills, and excellent communication. You will perform direct patient care tasks, assist with clinical procedures, and manage essential administrative and documentation duties to keep patient flow efficient and ensure a positive experience for every patient who enters the clinic.

What you'll do

• Greet and room patients, obtain and document accurate vital signs, medical histories, and chief complaints in the medical record system.


• Perform blood draws (phlebotomy), administer injections, and conduct EKGs in accordance with provider orders and clinical protocols.


• Prepare patients and exam rooms for procedures, ensuring proper supplies, equipment, and infection control standards are maintained.


• Support providers during examinations and minor urgent care procedures by setting up instruments, assisting as needed, and providing patient support.


• Manage medical records, including accurate and timely documentation of patient encounters, treatments, and test results.


• Answer phones and respond to patient inquiries with professional phone etiquette, routing calls and messages appropriately.


• Complete training and become certified with the Department of Transportation to perform Urine Drug Screens and Breath Alcohol Tests


• Coordinate patient flow to minimize wait times, including communicating with front desk, providers, and other staff regarding room availability and patient status.


• Perform basic diagnostic support such as point-of-care testing (as permitted) and ensure proper specimen handling, labeling, and documentation.


• Maintain a clean, safe, and well-stocked clinical environment, including cleaning and restocking exam rooms between patients.


• Follow all clinic policies, safety protocols, and regulatory requirements to ensure patient and staff safety in the urgent care setting.


• Collaborate with the urgent care team to support a patient-centered, efficient, and compassionate care environment during 10-hour shifts.

Qualifications

• Minimum 1 year of experience as a Medical Assistant or similar clinical support role, preferably in an urgent care, emergency, or ambulatory care setting.


• A current Medical Assistant Certification (CMA, RMA, CCMA, NCMA) and CPR/BLS certification are required.


• Demonstrated proficiency in blood draws (phlebotomy), including safe venipuncture technique and specimen handling.


• Demonstrated proficiency in administering injections, including vaccines and medications, in accordance with provider orders and protocols.


• Demonstrated ability to perform and obtain quality EKGs, including proper lead placement and basic troubleshooting of equipment.


• Strong patient care skills, with the ability to interact compassionately and professionally with patients of all ages in a fast-paced environment.


• Experience with medical records documentation (electronic or paper), with attention to accuracy, completeness, and confidentiality.


• Professional phone etiquette and clear verbal communication skills for interacting with patients, providers, and staff.


• Ability to work 10-hour shifts including rotating weekends and to adapt to changing patient volumes and priorities.


• Knowledge of basic infection control practices and standard precautions in a clinical environment.