Jennifer MacNeil, PMHNP-BC, Founder & Owner, Advanced Mental Health and Wellness
I am a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with over 20 years of nursing experience, including critical care, emergency, trauma, and psychiatric crisis stabilization. My career began at Massachusetts General Hospital, where I completed the Critical Care Nursing Fellowship and specialized in cardiothoracic surgery, later transitioning to mental health, where I found my true passion. I bring strong clinical skills in assessment, diagnosis, and treatment, combined with a natural ability to connect with patients and families. As the founder of Advanced Mental Health and Wellness, my focus is on delivering compassionate, evidence-based, and holistic care that integrates both mental and physical health. I am dedicated to creating a safe, supportive environment that prioritizes accessibility, collaboration, and patient-centered care to empower individuals to thrive.
Christiana Nsoh, DNP, PMHNP , Telehealth Provider
Christiana Nsoh, is a board-certified Psychiatric Mental Health Nurse Practitioner licensed in Massachusetts and New Hampshire. She brings extensive experience providing psychiatric evaluations, medication management, psychotherapy, and collaborative care for children, adolescents, adults, and older adults. Beginning September 1, 2025, Christiana will join Advanced Mental Health and Wellness as a telehealth provider, where she will be seeing and treating patients virtually with compassionate, evidence-based care for conditions including depression, anxiety, PTSD, bipolar disorder, ADHD, OCD, and more. Her professional background includes work with Focus Point Behavioral Health Solutions, Assured Hope Community Health, Supportive Care, the Veterans Affairs system, Tewksbury State Hospital, and Blueberry Hill Skilled Nursing, where she developed expertise in crisis intervention and complex psychiatric care. Christiana earned her Master of Science in Nursing from Wilkes University and completed her Doctor of Nursing Practice at Capella University. She is dedicated to improving access to care, supporting holistic wellness, and providing patient-centered treatment with compassion and integrity.
Katherine Larson, Medical Assistant
Katherine Larson serves as a Medical Assistant at Advanced Mental Health and Wellness, where she is valued for her compassionate approach and strong clinical foundation. She has earned her Bachelor of Science in Health Science Studies from Quinnipiac University and brings meaningful experience from private caregiving, healthcare training, and volunteer work with both children and adults. Known for her organization, empathy, and teamwork, Katherine is skilled in patient assessment and clinical support, always striving to create a welcoming environment. She is dedicated to building genuine connections and ensuring every patient feels cared for and supported throughout their journey.
Jennifer Richardson, Administrative Assistant
Over the last few decades, Jennifer has worked in Customer Service and Account Management roles in large corporate settings and small start-up businesses. In addition to her extensive experience, she is known for her good humor, empathy, and communication skills.
She is happy to assist you on behalf of Advanced Mental Health and Wellness and looks forward to interacting with and assisting you in the future.
Marlie Martin, Administrative Assistant
Marlie is the Administrative Assistant at Advanced Mental Health and Wellness, where she plays an essential role in supporting both our clinical team and the patients we serve. With her warm and compassionate approach, Marlie ensures that every patient interaction is met with professionalism, kindness, and genuine care. She is often the first point of contact for our practice, greeting patients with warmth and helping them feel at ease from the very beginning. Her responsibilities include scheduling appointments, managing patient communications, coordinating documentation, and supporting daily office operations, all of which she handles with reliability and attention to detail. Marlie takes great pride in creating a welcoming and organized environment and is deeply committed to helping patients feel supported throughout their care journey. Passionate about mental health advocacy, she values her role in making access to care smooth, respectful, and dignified.