Book a therapist or psychiatrist in Mineola, NY covered by United Healthcare

I hae a collaborative approach in working with clients with a wide range of backgrounds.

My name is Vivian Mancino. I've been practicing for more than twenty years in various settings with diverse populations. I earned my doctorate at Columbia University in 2004. I have had training in eating disorders, cognitive-behavioral techniques, motivational interviewing, and dialectical behavior therapy. I'm experienced in treating anxiety disorders and depression, and bereavement.

Board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) and Family Nurse Practitioner (FNP-BC) Specializes in comprehensive psychiatric evaluations, medication management, and evidence-based psychotherapy for patients across the lifespan. Dedicated to providing compassionate, trauma-informed, and holistic care in both inpatient and outpatient settings.

As a dedicated Licensed Clinical Social Worker (LCSW-R) with 17 years of hands-on experience, I've had the privilege of guiding countless individuals through life's toughest moments, helping them rediscover their inner strength and joy. I graduated from Adelphi University in 2007, where I honed my skills in evidence-based therapeutic techniques, but what truly sets me apart is my deep commitment to seeing each client as a unique person with their own story, dreams, and potential. My practice is built on a foundation of empathy, integrity, and genuine care — I don't just listen; I truly hear you, validating your experiences without judgment. Over the years, I've supported people from all walks of life, whether they're navigating the fog of anxiety, the weight of grief, or the complexities of relationships, always tailoring my approach to what resonates most with you. Clients often tell me they feel an immediate sense of relief knowing they're in a space where vulnerability is met with compassion and expertise. I'm passionate about holistic well-being, incorporating mind-body connections and practical strategies that extend beyond the session room into your daily life. What drives me? Witnessing those transformative "aha" moments when someone realizes they have the power to shape their future. If you're ready to invest in yourself and explore how therapy can unlock a more empowered, fulfilling path, I invite you to reach out — let's start this journey together and see how far you can go.

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).

This is my first career; it has always been my dream to help people. I never envisioned doing anything else in life. I’ve worked in a myriad of settings, ranging from satellite clinics based on early educational settings to social adult daycares (and everything else in between, including hospitals and intensive day treatment). I have completed training to be able to work in these settings, including courses on TF-CBT, motivational interviewing, and mental health first aid.

We can move forward, overcome, learn and grow, seeking peace, balance, happiness. I was a NYS Certified School Psychologist for 16 years, and have 7 years of combined supervised and licensed experience as a Mental Health Counselor. I have several degrees in addition to Mental Health Counseling which broadens my perspectives and experience. I was a Training Consultant for Dale Carnegie Training. I also have a Jack Nash Honors MBA, working in foreign exchange capital markets for several years. Counseling however is my calling, my purpose.