Meet Our Team

Dr. Michel K. Stephan is a board-certified physician and the trusted Medical Director at First Rate Infusion & Wellness Care. He brings years of experience in clinical medicine, patient safety, and wellness innovation—ensuring every service provided meets the highest standards of care and compliance.

Passionate about holistic and patient-centered medicine, Dr. Stephan works closely with the First Rate team to blend science and compassion in every treatment—from IV vitamin therapy and weight management to mental health and Spravato® programs. His calm leadership and commitment to quality care help create an environment where patients feel supported and confident in their wellness journey.

Outside of medicine, Dr. Stephan is a devoted husband and father who enjoys spending quality time with his family. He’s an avid golfer and skier, always finding balance between his dedication to healthcare and his love for the outdoors.

Teria Mullin, CRNA, FNP-C is a dual board-nurse practitioner.  With expertise spanning anesthesia, primary care, and complex pharmacologic therapies, she specializes in helping patients achieve real, lasting improvements in both physical and mental health.

​

Teria has built a patient-centered, clinically integrated care model that combines ketamine therapy, psychiatric services, and personalized wellness treatments—expanding access to innovative solutions for individuals who have not found success with traditional approaches. Her work is redefining how communities experience modern healthcare.

​

Outside of her clinical work, she enjoys spending time with her family, traveling and dancing.

Mwandu Chisanga, DNP, PMHNP-BC is a dedicated Psychiatric Mental Health Nurse Practitioner with a unique background that combines the art of communication with the science of compassionate care. Before pursuing her nursing career, Mwandu earned her first degree in Journalism, which strengthened her ability to listen deeply, connect with people’s stories, and communicate with empathy—skills she now brings to every patient encounter.

 Mwandu provides thoughtful, evidence-based mental health support through psychiatric evaluations, medication management, and integrative wellness approaches. Her calm, understanding presence helps patients feel heard, valued, and supported as they work toward mental and emotional balance.

 Outside of her professional role, she enjoys writing, exploring new experiences, and spending time with family and friends.

Blessing Dan-Dukor, DNP, PMHNP-BC is a dedicated psychiatric mental health provider with more than 25 years of nursing experience and a genuine passion for helping people feel their best- mentally and emotionally. She provides compassionate, personalized care through medication management, psychotherapy, and holistic approaches tailored to each person’s unique needs.

Blessing strives to create a warm, supportive space where people feel heard, understood, and empowered. 

Carolina Montemayor is a dedicated Medical Assistant whose warm personality and attention to detail help make every visit at First Rate Infusion & Wellness Care a comfortable and positive experience. With a strong passion for patient care and wellness, Carolina supports both the clinical team and clients through every step of their journey — from check-in to treatment follow-up.

Outside of work, she enjoys spending time with family, staying active, and continuing to learn more about health and wellness to better serve her community.

Kylar Williams is a compassionate Care Coordinator whose calm presence and organized approach help every client feel supported at First Rate Infusion & Wellness. With a background in human development and current graduate studies in clinical psychology, Kylar brings a genuine understanding of mental health to her work, guiding clients through their Spravato treatment from scheduling and check-in to monitoring and follow-up.

She takes pride in creating a safe, welcoming environment where clients feel heard and cared for, and in keeping each visit running smoothly behind the scenes.

Outside the clinic, Kylar is the author of Two Homes, One Heart, a co-parenting guide written from a child's perspective.