

New Location! Inside Resonance Mental Health
13 Orchard View Dr.. in Londonderry, NH.
Telehealth available. 20 years of experience working with individuals, families, and coaching leaders in greater Boston, Florida, and NH.
Master of Education in Human Development and Psuchology from Harvard University. Masters in Clinical Social Work from Boston College. MBA from Northeastern University. International Coaching Federation training from Boston University School of Social Work.
Individual, Family and Couples therapist. Conflict Resolution. Increase Self-Control at Work and Home. Executive functioning specialist.
I am a trauma-informed, licensed clinical social worker.
I work with adults who are tired of surviving everything alone. A lot of the people I support are used to being “the strong one” — carrying anxiety, emotional overwhelm, difficult relationships, self-doubt, burnout, or years of unspoken pressure while still showing up for everyone else.
As a Black woman, I understand how life experiences, identity, culture, and the spaces we move through can shape the way we see ourselves and navigate the world. Therapy with me is not about judging or “fixing” you — it’s about creating space for you to breathe, unpack what’s been weighing on you, and reconnect with yourself in a way that feels honest, grounded, and real.
I am a Licensed Mental Health Counselor in the State of Florida with over 20 years of experience in mental health. I am fully bilingual English/Spanish. I grew up in Puerto Rico and move to FL about 30 years ago. I have an intense training and experience in Trauma recovery helping victim of violence, illness or accidents. I also have long years of experience working with grief, relationship issues, mental health afflictions like depression, stress and others. I am also trained and enjoy helping neuro atypical people to develop ways of managing life that can work for them. I can work with all ages 6 and up. I have a certification as child/youth mental health specialist. I enjoy painting and encourage the use of creativity to work through emotional pain.
I specialize in working with couples that want a stronger relationship, kids hurting from divorce, angry teens, frustrated parents and individuals looking to find purpose in life. Also, for those whose work schedules may interfere with their availability, I do offer evenings and weekend sessions.
I am extremely passionate about mental wellness to achieve the best possible quality of life. I often see the correlation of neglecting mental health and the negative effects on ones self care and relationships with others. I have a diverse background in psychiatric mental health to treat acute and chronic concerns with a specialty with womens mental health. As a duel certified FNP and PMHNP, I value the importance of overall mind and body well-being.
I am a warm hearted therapist who empowers her clients to be the best version of themselves.
Diana Lankenau has a Master of Science in Nursing from Florida State University and Chamberlain University. She has a Bachelor's in nursing from University of Miami. BA in Psychology from Florida International University. She is Board Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) and Family Nurse Practitioner (FNP-BC).


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