

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!
I’m a Doctor of Nursing Practice (DNP) prepared Psychiatric Nurse Practitioner who earned my doctorate from Elms College. I have over 10 years of experience in mental health care and nearly 19 years in the nursing field. Throughout my career, I have worked in inpatient, outpatient and community settings. I have experience supporting an treating a wide range of individuals, from young adults to older adults and geriatric patients.
I have over 35 years of healthcare experience in a variety of fields.
I am dual certified in both family and psychiatric medicine.
I am a Psychiatric–Mental Health Nurse Practitioner (PMHNP) who offers compassionate, trauma-informed medication management within a warm, collaborative space. I work with individuals navigating anxiety, depression, mood changes, trauma-related symptoms, and periods of transition, and I deeply value creating a sense of safety and understanding in the therapeutic relationship.
I approach mental health with curiosity and care, believing that symptoms often carry important information about what the nervous system has been holding or managing for a long time. Clients often share that they feel heard, respected, and less alone in our work together. My intention is to support people in reconnecting with themselves and moving through life with greater steadiness and self-trust.
I'm a board certified psychiatrist. I received my medical degree from Weill Cornell Medical College of Cornell University and trained in psychiatry at the BIDMC Harvard Psychiatry Residency Training Program. I also completed a one-year fellowship in psychodynamic psychotherapy at Boston Psychoanalytic Society and Institute.
I practice general adult psychiatry and specialize in women's mental health and reproductive psychiatry, young adult mental health, and LGBT+ mental health.
Dr Harris provides psychiatric diagnostic assessments, medication consultation, psychopharmacology and psychotherapy services. She specializes in comprehensive assessments and evidence-based medication management for a broad range of psychiatric and psychological disorders. She understands the complexities of mental health and is committed to delivering personalized care tailored to the unique needs of each individual.
Dr Harris completed her undergraduate studies at the University of California at Berkeley and her medical studies at University California at San Francisco. She then completed her residency training in Adult Psychiatry at Cambridge Health Alliance/Harvard Medical School.


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