Book a therapist or psychiatrist in East Islip, NY covered by Aetna

Hi, I'm Jean-Jeffrey Marcellus, DNP, PMHNP-BC, AGNP-BC, a board-certified Psychiatric Mental Health Nurse Practitioner with over 19 years of healthcare experience. I provide compassionate, evidence-based care for adults experiencing ADHD, anxiety, depression, insomnia, and substance use disorders.

I specialize in Medication-Assisted Treatment (MAT) for alcohol, opioid, benzodiazepine, kratom, and prescription medication dependence. My approach is collaborative and personalized, focusing on creating treatment plans that support each individual's goals, recovery, and overall well-being.

I offer both in-person and telehealth appointments, providing a welcoming, judgment-free environment where patients feel heard, respected, and empowered. I am committed to delivering culturally responsive care and making high-quality mental health services accessible to individuals from diverse backgrounds.

I have over 8 years clinical experience working with a variety of populations in a variety of community mental health settings. My have a person-centered approach to treatment and provide warmth, empathy, empowerment and support to my clients as they work to overcome their challenges and improve their life.

Do you worry about what tomorrow holds? Overthinking about events from the past? If you want to learn to experience the present moment, you have come to the right page. My name is Danielle and I specialize in Anxiety, Depression, and PTSD. In addition to those specialties, I support clients through a wide range of challenges including stress management, life-transitions, and self-esteem issues. I strive to create a relaxed, authentic, non-judgmental therapy environment; So, don’t be surprised if you are welcomed by a woman in jeans and sneakers. I believe the goal in therapy is for each individual to reach their highest potential.

I’m Linda Orji, a Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with over Eleven years of experience in health care. I earned my Master of Science in Nursing from the University of Rochester in Rochester, NY. Over the years, I’ve had the privilege of caring for individuals with both medical and psychiatric conditions, which deepened my understanding of the powerful connection between the mind, body, and overall well-being.

Does your child or adolescent’s behavior leave you wondering, “What is going on?”Are they having meltdowns, withdrawing, struggling at school, worrying, or feeling sad? Children and adolescents often communicate their feelings through behavior long before they have the words to explain what they are experiencing.I work with children, adolescents, and families navigating challenges such as adoption, divorce, co-parenting, blended-family transitions, grief and loss, school-related worries, family conflict, and the growing push for independence. I help children and caregivers better understand what may be underneath the behavior while strengthening connection, communication, and emotional regulation. I am a Licensed Clinical Social Worker (LCSW) and Registered Play Therapist-Supervisor (RPT-S). I received my Doctorate in Clinical Social Work (DSW) and Master’s in Social Work (MSW) from New York University, and my Bachelor’s of Science in Social Work (BSW) from Cornell University. With more than two decades of clinical experience across inpatient, outpatient, and residential settings.

I believe prioritizing mental health is key to stability in life. I know there is a better world out there and people need the tools to connect with their upmost insight for mental well being. In this field I am always eager to research and find healing processes to tailor the need of each individual.

I have a particular passion for working with men, especially guys in their 20s and 30s. A lot of the young men I see are dealing with something the research is only now catching up to — an erosion of in-person connection, a sense of drift, and a shortage of spaces where they can actually say what's going on. I'm genuinely excited and motivated by this work because I believe this generation of men needs — and deserves — real support. That said, I also welcome clients navigating anxiety, discouragement, depression, workplace stress, relationship dynamics, and life transitions of all kinds.

I'm a Brooklyn-bred Psychotherapist and earned my LCSW in 2009. I previously worked in the corporate world, and understand pressure, ambition, career transitions, and what it feels like when the thing you've built your identity around stops fitting. Since becoming a therapist, I've worked in hospitals, outpatient clinics, substance abuse treatment, and psych rehab before settling into a private practice where I'm focused on the work I care most about.