About Us

Sammy is a Critical Care Nurse with 3.5 years of experience in high-acuity hospital settings, including previous leadership experience as a Surgical Charge Nurse. Her background has strengthened her clinical expertise, attention to detail, and commitment to delivering safe, evidence-based care. At Max Immunity, she is passionate about helping clients feel energized, refreshed, and supported through IV therapy. With her critical care experience, she prioritizes safety, comfort, and education, ensuring every client feels confident and cared for throughout their infusion experience. She is fluent in Shanghainese and conversational in Mandarin and Cantonese, allowing her to connect with and support a diverse community of clients. She is excited to be part of the Max Immunity team and looks forward to helping clients take a proactive approach to their wellness.

Karen is a dedicated Registered Nurse who brings a wealth of clinical experience from diverse environments, including emergency care, surgical nursing, dental practice, and community health. This extensive background has cultivated her calm, compassionate approach and rigorous commitment to safe, detail-focused care. Karen's ability to connect comfortably with our diverse clientele is enhanced by her linguistic fluency in English and Cantonese, alongside conversational Mandarin. Karen is committed to leveraging her comprehensive nursing skills to ensure every client at Max Immunity receives exceptional personalized wellness care.

Jessica is a Registered Nurse with experience in high-acuity emergency care and outpatient procedural and IV therapy settings. She brings strong skills in rapid assessment, IV insertion, medication administration, and patient monitoring, with additional experience supporting airway management during sedation and oral surgery procedures. Jessica is known for her calm, safety-focused approach and her ability to support patients across all age groups in fast-paced environments. She is committed to delivering attentive, evidence-based care and helping clients feel comfortable and confident throughout their infusion experience. Jessica is fluent in English and Cantonese, allowing her to connect with a diverse patient population.

Sara is a dedicated Registered Nurse who holds a Bachelor of Science in Nursing from the University of Alberta. She also earned a Bachelor of Science in Psychology with Distinction.
Sara brings strong clinical skills in patient assessment, IV insertions, and venipuncture. With experience in both acute care and family medicine settings, she is skilled at delivering high-quality, compassionate care to a diverse patient population.
She is passionate about preventative wellness and regenerative medicine. At Max Immunity Clinic, Sara is committed to providing safe, personalized IV nutrient therapy and delivering exceptional client centred care in a relaxing environment.

Denis Estrada, RN, is a Registered Nurse with over five years of experience across medical-surgical, mental health, emergency, and critical care settings, with a strong clinical focus in ICU and acute care nursing. His experience as a float and flight nurse has strengthened his adaptability, leadership, and ability to provide high-quality patient-centered care in fast-paced environments.
Passionate about both critical care and preventative health, Denis believes healthcare should focus not only on treating illness, but also on helping individuals feel and function at their very best. He is committed to an upstream approach to wellness by supporting patients in optimizing their health, improving quality of life, and reducing long-term illness through proactive and evidence-informed care.

In addition to his clinical work, Denis is dedicated to education and mentorship, having precepted numerous nursing students and new graduate nurses throughout his career. He is currently pursuing a Master of Health Professions Education, further expanding his expertise in leadership, clinical teaching, and healthcare education.


Denis is fluent in both English and Spanish, allowing him to connect with and support a diverse patient population through clear communication and culturally mindful care.

Erica is a registered nurse with 4 years of experience as a Resource Team Nurse, providing care across medicine, cardiology, surgery, and predominantly emergency nursing. She has strong patient assessment, critical thinking and IV insertion skills. Erica is committed to delivering safe, compassionate, and high-quality patient care. She is fluent in English and Cantonese and always aims to focus on patient safety and comfort in her practice. At Max Immunity Erica is committed to providing personalized care and creating a safe, supportive experience for every client.

Sherry is a highly experienced Nurse Practitioner (NP) dedicated to patient wellness. With 20 years as a bedside nurse at Toronto General Hospital (TGH), she earned her NP license from the University of Toronto (U of T) in 2011. She has since spent over a decade collaborating with family physicians. Driven by her passion for working with people, she is focused on providing personalized care to help every Max Immunity client achieve optimal health and wellness.

Vincent joins the Max Immunity team with a Master of Financial Accountability, bringing a sophisticated level of analytical precision to our front-desk operations. Vincent specialize in maintaining rigorous standards of data integrity and administrative transparency, ensuring that every client’s record is managed with the highest degree of accuracy and confidentiality.