

Welcome! I am a dual certified Nurse practitioner in the state of Massachusetts as both a PMHNP and FNP. I enjoy getting to know my clients well and building a strong working relationship. It is my goal for you to feel better and secure. I have experience working with eating disorders, bipolar disorders, depression, anxiety, OCD, sleep, adhd, and psychotic disorders.
Please reach out for an appointment if you are in need of care and medication management.
I’m Mackenzie, a Psychiatric Nurse Practitioner dedicated to helping children, adolescents, and adults find balance, clarity, and confidence through compassionate, evidence-based care. I believe mental health treatment should feel personal, not clinical.
I am a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with experience in both outpatient and inpatient settings, providing comprehensive mental health care across diverse populations. My background includes extensive work in behavioral health emergency settings, partial hospitalizations, IOP, recovery care, community psychiatric care. I also have experience supporting dually diagnosed patients with co-occurring medical conditions, giving me a broad perspective on the complex interplay between mental and physical health.
I earned my PMHNP degree from Post University and hold PMHNP licensure in both Massachusetts and New Hampshire. Throughout my career, I have remained committed to evidence-based care, while continuously seeking opportunities for professional development and growth in the mental health field.
My name is Lisa Costa, and I am dedicated to providing empathetic care by actively listening to my clients. I offer the best advice for medication management, aiming to enhance quality of life. I work with clients aged 6 to 100, experiencing challenges with anxiety, depression, ADHD, and mood disorders. Let’s work together on your journey to well-being!
Miriam Fernandes, MSN, PMHNP-BC
I am a board-certified Psychiatric Mental Health Nurse Practitioner providing compassionate, evidence-based care to adults. I specialize in treating anxiety, depression, mood disorders, trauma-related conditions, and burnout. My professional background includes experience in both high-acuity and outpatient psychiatric settings, where I have worked with individuals facing complex emotional and behavioral health challenges.
I strive to create a safe, respectful space where clients feel heard and empowered. My goal is to partner with you in developing a treatment plan that supports long-term wellness and meaningful change.
Now accepting patients in Massachusetts! Offering in office visits on the fourth Monday of each month in Westford, MA from 8:00 until 11:30 and virtual visits throughout the week.
I have been in healthcare for over 20 years and enjoy partnering with patients . As a gay man, I understand the comfort that comes with working with someone from the community.
Choosing a psychiatric provider is a personal decision, and I approach that with care. As a psychiatric nurse practitioner specializing in adult mental health, I focus on understanding you as a whole person and creating a treatment plan that fits your life.
I have worked with diverse populations and often see how anxiety, trauma, stress, and executive dysfunction can interfere with work, relationships, and overall well being. I treat adults with depression, anxiety, ADHD, and substance use concerns, with experience in both inpatient and outpatient settings, including complex cases. I especially enjoy working with college students, professionals, and business leaders who are balancing demanding schedules and high expectations. I also collaborate with caregivers and other professionals to ensure well rounded care.


Headway makes it easy to find support for your mental health — from finding the right provider, to understanding costs, to scheduling with ease.