ADHD Treatment in Garden City / Long Island

At Principium Psychiatry – Long Island, our team offers diagnostic testing and tailored treatment for ADHD in children, adolescents, and adults.

Living with ADHD on Long Island can feel like you’re working twice as hard to keep up — missed deadlines, difficulty focusing, disorganization, forgetfulness, restlessness, or impulsive decisions that create stress at work, school, and home. Many adults and young adults in Nassau County describe knowing what they want to do, but struggling to start, stay on track, or follow through consistently. If ADHD is affecting your daily life in Garden City or anywhere on Long Island, support can make a real difference.

At Principium Psychiatry – Long Island, we provide personalized, evidence-based ADHD treatment in Garden City, NY for adults and young adults across Nassau County and Suffolk County. Patients visit us from Garden City, Mineola, Hempstead, Westbury, New Hyde Park, Rockville Centre, Uniondale, East Meadow, Great Neck, Floral Park, and throughout Long Island. We begin with a careful diagnostic evaluation and a clear understanding of your symptoms, history, and goals. Then we build an individualized plan that may include therapy and executive-function skill building, medication management when appropriate, and practical strategies you can use in real life — at your job, in school, and at home. ADHD is treatable, and with the right approach, many people experience meaningful improvements in focus, organization, and quality of life.

Types of ADHD We Treat in Garden City and Long Island

Our Garden City psychiatry team treats:

  • Adult ADHD (inattentive, hyperactive-impulsive, and combined types)

  • ADHD in college and graduate students across Long Island

  • ADHD with anxiety or depression

  • Executive function challenges (time management, planning, follow-through) If you’re unsure whether it’s ADHD, we provide diagnostic clarification for Nassau County and Suffolk County residents.

When to Seek ADHD Treatment in Nassau or Suffolk County

You may benefit from ADHD care if you notice:

  • Chronic distractibility or difficulty sustaining attention

  • Disorganization, procrastination, or missed deadlines

  • Forgetfulness with daily tasks and responsibilities

  • Restlessness or feeling mentally “always on”

  • Impulsivity in conversations, spending, or decisions

  • Work or school performance that doesn’t match your potential
    Earlier care often leads to faster, longer-lasting improvement.

Services Available in Garden City, Long Island:

At Principium Psychiatry – Long Island, we serve Nassau County and Suffolk County with psychotherapy, psychopharmacology, and general psychiatry. For treatment-resistant or complex cases, our Garden City office offers Spravato® and IV ketamine, and we provide additional support through our Intensive Outpatient Program (IOP). We also offer expert psychiatric evaluations for accurate diagnosis and tailored treatment planning across Long Island.

Your first visit is a comprehensive ADHD evaluation at our Garden City office. We’ll review symptoms, history, school/work patterns, and goals, then outline a clear plan. Telehealth ADHD treatment is also available for patients throughout Long Island when clinically appropriate.

Our Approach

Serving Nassau & Suffolk Counties

Our Garden City office provides accessible, flexible appointments and telehealth across Long Island.