Book a therapist or psychiatrist in Merrick, NY covered by Cigna

As a License Clinical Social Worker, I am dedicated to helping adults navigate emotional issues, life challenges, anxiety and more. I bring compassionate client-centered approach, to provide a safe and supportive environment where individuals feel comfortable to share their story and be heard in an effort to help them build resilience and allow them to take the risk to invest in their ability to grow and make changes that lead to a more positive sense of self.

I have worked within the mental health field as a school psychologist and a licensed mental health professional for almost 30 years. my experience includes, but is not limited to, anxiety, depression, children and adolescents, parenting skills, self-esteem, empowerment, life transitions, and divorce.

Do you notice patterns of behaviors that you are unsatisfied with? Therapy is a significant step towards working through and facing life's most difficult challenges. I have worked with adults, adolescents and children treating issues of adjustment, self-doubt, mood swings, trauma and anxiety attacks. When you approach the therapeutic process with curiosity, you can grow, heal, and thrive.

I’ve been helping people for over 20 years as a Licensed Clinical Social Worker, and I’m so proud of you for taking this important step toward caring for yourself. It’s not always easy, and it shows strength and courage.

Throughout my career, I’ve worked with individuals of all ages and backgrounds, addressing a wide range of challenges. My experience includes school settings, college multicultural affairs, outpatient drug and alcohol treatment, and mental health counseling.

I also spent nine years in a hospital setting, working in psychiatric emergency services and on adolescent and adult inpatient units. This gave me extensive experience in crisis intervention and in supporting people through both mild and severe mental health concerns. Today, I continue to work in outpatient mental health, helping clients navigate life’s challenges and build resilience.

My goal is to provide a safe, supportive space where you feel heard and understood. Together, we’ll work toward the changes you want to see in your life. I look forward to working with you.

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 am a Daughter, Sister, Mother, & Ally.
• I was educated at the Hunter Bellevue School of Nursing in Manhattan, New York City, NY.
• My background is in Psychiatric & Correctional Healthcare.
• I offer Specialized ADHD/Autism 1:1 Weekly Coaching, Leucovorin & FRAT testing!
• Also, Medication Management, Talk Therapy, Goal Setting, Time Management, Fertility Support, Special Education Advocate, Weight Management, Confidential Religious Crisis Guidance.