Certified Phlebotomist / Medical Assistant

Certified Phlebotomist / Certified Medical Assistant (Full-time)

We’re Mantality Health, an Agentis Longevity Clinic 

Clinic Location = St. Louis, MO (Tues/Thurs) and Chesterfield, MO (Mon/Wed/Fri)
Clinic Hours =
Mon  7A - 12P
Tues 6:30A - 12P
Wed  11A - 5:30P
Thurs 11A - 5:30P
Fri  6:30A - 2P

Agentis Longevity is pioneering care in hormone optimization therapy, peptides, exosomes, and other longevity-centric treatments – advancing patients to live longer, healthier, happier lives. We are here to transform longevity care as a trusted clinical partner for you.  

Mantality Health is one of our premier men’s and women's health clinics across the Midwest delivering exceptional clinical care to our patients over the past 10+ years. We are dedicated to helping our patients live more powerful lives through hormone replacement therapy, peptide therapy, & additional medical services.  

We’re Looking for You   

As a Certified Phlebotomist or Medical Assistant at Agentis / Mantality Health, you are the hands-on clinical professional ensuring every patient receives high-quality, compassionate, and efficient care. You’ll play a vital role in supporting providers, performing diagnostic testing, administering injections, and preparing patients for their treatments. Your professionalism, precision, and commitment to patient well-being directly enhance the patient experience and contribute to clinic success. 

Who You Are  

You embody Agentis & Mantality values and demonstrate key competencies that ensure both patient and team success. Our values are essential for how we hire, lead, collaborate, and succeed together every day. Our Certified Phlebotomists / Medical Assistants connect patients to the treatments they need and show up with a driven & positive mindset rooted in our mission, vision, and values.  

Our Values  

Integrity in Practice: We uphold the highest standards by proactively seeking solutions to improve lives. By shifting from a reactive to a preventative healthcare model, we ensure our actions consistently meet our patients’ needs.  

Mission for Excellence: Excellence is at the heart of everything we do, driving us to achieve peak performance. We are committed to continuously advancing health and wellness, always striving for the next level.  

Passion for Impact: We believe in taking an active role in one’s own well-being to drive breakthroughs. By focusing on quality outcomes, we provide hope and lasting health that leads to life-changing impacts for our patients.  

Accessibility: We make the transformative power of health accessible to patients nationwide, ensuring their needs are met as they take control of their well-being. By providing resources, guidance, affordability, and transparency, we empower patients to live longer and live well as they age.  

Clinical Quality: We focus on continuous improvement through innovation. We set the benchmark for Industry leading-quality, patient-centered care.  

Teamwork: By working together, we create comprehensive solutions that address the diverse needs of our patients, driving better outcomes and a stronger impact.  

What You’ll Do  

• Clinical Care & Phlebotomy 

• Perform venipuncture, collect and process blood specimens accurately and efficiently. 

• Administer injections, IM and subcutaneous treatments, and other clinical procedures per provider orders. 

• Prepare, clean, and maintain exam rooms, instruments, and equipment according to protocol. 

• Support hormone replacement therapy administration and other longevity-related treatments.  

• Patient Support & Education 

• Welcome and prepare patients for consultations, ensuring comfort and readiness for procedures. 

• Provide education about treatments, aftercare, and health optimization programs. 

• Ensure accurate documentation in EMR/CRM systems and maintain confidentiality at all times. 

• Operational Excellence 

• Coordinate with the clinical and front office teams to ensure timely patient flow. 

• Manage lab supplies, maintain inventory, and ensure compliance with OSHA and CLIA standards. 

• Contribute to continuous improvement initiatives to enhance patient care and operational efficiency. 

What You Have  

• Passion for men’s & women's health, wellness, and longevity care. 
• 1–2+ years of clinical or patient-facing healthcare experience required.
• Certified or Registered Medical Assistant and/or Phlebotomy certification required. 
• Strong understanding of medical procedures, lab collection protocols, and infection control. 
• Excellent communication and multitasking skills with a patient-first mindset. 
• Experience with EMR or practice management systems

Measures of Success 

• Clinical excellence – high patient lab work satisfaction 

• Patient experience obsessed – high patient experience 

• Longevity advocate – patient to member conversation 

What We Offer 

• Full-time position on-site in our premier clinic in St. Louis and Chesterfield, MO
• ​​​​​​​Paid Time Off & Company-paid Holidays
• Healthcare, Financial, and Wellness Benefits  
• Ongoing training, mentorship, & growth opportunities 

Pay Range 

$20-23 / hour 

Check us Out   

Agentislongevity.com 

Mantalityhealth.com