Medical Assistant Phlebotomy Jobs in Rialto, CA (NOW HIRING)

Medical Assistant / Phlebotomist – Laboratory Services

Adecco Healthcare & Life Sciences is hiring for a leading healthcare organization known for providing comprehensive laboratory and patient-care services in Colton, CA.

Position Details

Location: Colton, CA
Work Arrangement: 100% Onsite
Address: 1300 E Cooley Dr., Colton, CA 92324
Pay Rate: Up to $24.50/hour
Employment Type: Contract-hire
Contract Dates: September 7, 2026 – January 1, 2027
Schedule: Monday–Friday
Hours: 7:00 AM–4:00 PM
Dress Code: Navy blue scrubs
Travel: None
Interview: In Person

Position Overview

The Medical Assistant / Phlebotomist will provide hands-on patient and laboratory support, with a primary focus on phlebotomy, blood draws, specimen collection, processing, labeling, and preparation for shipment to contracted laboratories.

This position is ideal for a skilled and dependable healthcare professional who is comfortable performing high-volume blood draws while maintaining accuracy, patient safety, and excellent customer service. The successful candidate will support approximately 1,300 patients/specimens per month and help maintain efficient daily laboratory operations.

Key Responsibilities

• Perform blood draws and venipuncture accurately and safely.

• Collect, process, label, and prepare patient specimens for pickup and shipment to contracted laboratories.

• Verify patient identification and ensure specimens are correctly matched, labeled, handled, and documented.

• Follow established specimen-handling, processing, packaging, and transportation requirements.

• Provide compassionate, professional patient care throughout the laboratory process, including supporting patients who may be anxious about blood draws.

• Work efficiently in a high-volume environment while maintaining accuracy and timely service.

• Maintain laboratory supplies, equipment, and work areas according to clinic and laboratory standards.

• Monitor inventory and communicate supply needs to help prevent interruptions to laboratory operations.

• Provide staff coverage for breaks and assist with maintaining consistent laboratory workflow.

• Follow all applicable infection-control, safety, specimen-handling, and compliance requirements.

• Maintain accurate documentation and records associated with patient and specimen processing.

• Collaborate with clinical and laboratory staff to support efficient daily operations.

• Identify workflow issues and communicate potential solutions or process improvements to appropriate team members.

Required Qualifications

• Medical Assistant certification required.

• Phlebotomy certification required.

• BLS certification required.

• Strong hands-on experience performing phlebotomy and blood draws.

• Experience with specimen collection, processing, labeling, and preparation for laboratory pickup or shipment.

• Ability to work efficiently and accurately in a high-volume, patient-facing environment.

• Strong knowledge of patient identification, infection control, specimen handling, and safety procedures.

• Excellent communication and patient-service skills.

• Strong attention to detail and commitment to accuracy.

• Ability to work independently while also functioning effectively as part of a team.

Preferred Qualifications

• Previous experience in a laboratory or clinical laboratory environment.

• High-volume phlebotomy experience involving multiple specimen types.

• Familiarity with Epic and Quest.

• Strong organizational and time-management skills.

• Ability to remain calm and professional in a fast-paced environment.

• Demonstrated initiative and ability to identify workflow challenges and contribute to solutions.

• Strong teamwork, dependability, and positive attitude.

• Experience working with patients who may be nervous or apprehensive about blood draws.

Schedule & Work Environment

• Monday–Friday

• 7:00 AM–4:00 PM

• 40 hours/week

• 100% onsite

• Navy blue scrubs

• No travel required

• No patient-home visits

• Single work location

Interview Process

The hiring team prefers an in-person interview.

Why Work with Adecco?

• Up to $24.50/hour

• Weekly pay

• 401(k) options

• Medical, dental, and vision benefits

• Skills training and professional development resources

• Dedicated Adecco recruiter support

If you're a certified Medical Assistant and Phlebotomist with strong blood-draw and specimen-processing experience, this is an excellent opportunity to put your clinical skills to work in a busy laboratory environment.

Pay Details: $22.00 to $24.30 per hour
Benefit offerings available for our associates include medical, dental, vision, life insurance, short-term disability, additional voluntary benefits, EAP program, commuter benefits and a 401K plan. Our benefit offerings provide employees the flexibility to choose the type of coverage that meets their individual needs. In addition, our associates may be eligible for paid leave including Paid Sick Leave or any other paid leave required by Federal, State, or local law, as well as Holiday pay where applicable.
Equal Opportunity Employer/Veterans/Disabled
Military connected talent encouraged to apply
To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to https://www.adecco.com/en-us/candidate-privacy
The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers
• San Francisco Fair Chance Ordinance

Massachusetts Candidates Only: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.