Evaluation & Diagnosis
- Comprehensive ADHD assessment
- Adult late-diagnosis evaluation
- ADHD differential diagnosis
- Complex comorbidity screening
- Second opinions
I'm Dr. Ryan Sultan — a Columbia University psychiatrist, NIH-funded researcher, and the author of one of the most-cited ADHD studies in the field. I help patients get accurate diagnoses and effective treatment.
You've always felt something was off — trouble focusing, chronic procrastination, a brain that won't quiet down. You're not lazy. You may have ADHD, and I can help you find out.
Your child just got an ADHD diagnosis and you're overwhelmed with treatment options. I'll give you a clear, evidence-based plan — not guesswork.
Your medication isn't working, the side effects are bad, or you feel like your provider doesn't listen. I specialize in complex and treatment-resistant ADHD.
ADHD with anxiety, depression, OCD, autism, or substance use. Misdiagnosis is common. As a researcher and clinician, I see what others miss.
70+ pages of evidence-based resources — the most comprehensive ADHD reference from an active researcher
16,500-word evidence-based guide covering symptoms, diagnosis, treatment, medications, and outcomes across the lifespan.
Every question answered — from "Is ADHD real?" to medication specifics.
75+ terms defined. Complete reference for patients, families, and clinicians.
Evidence-based screening tool. Not a diagnosis — a starting point.
Stimulants vs. non-stimulants, side effects, titration, and what to expect.
Expert explanations on diagnosis, treatment, parenting, and daily management.
Expert psychiatric evaluation and treatment at Integrative Psych NYC
Manhattan — Chelsea (80 Eighth Avenue) | Response within 24-48 hours
In my landmark 2019 study, my research team and I analyzed national prescribing data and found that antipsychotic medications were being prescribed to youth with ADHD at alarming rates — often without an appropriate indication. This research, published in JAMA Network Open, has been cited over 411 times and contributed to changes in prescribing guidelines for children with ADHD nationwide. It is used as required reading in multiple psychiatry residency programs.
Read the full study analysisMy NIH NIDA-funded research examines adolescent cannabis use, psychosis risk, and mental health outcomes. Published in Pediatrics. Cannabis increases psychosis risk by 4x with daily high-potency use.
My JAMA Psychiatry publications examine telehealth oversight, the risks of unregulated digital psychiatry platforms, and frameworks for safely integrating AI into mental health care.
ADHD (Attention-Deficit/Hyperactivity Disorder) is a neurodevelopmental condition affecting approximately 5-7% of children and 4-5% of adults worldwide. It involves persistent patterns of inattention, hyperactivity, and impulsivity that interfere with daily functioning. ADHD is not a character flaw or lack of willpower — brain imaging studies show measurable differences in the prefrontal cortex, which controls executive function. My 411-cited JAMA research has shaped understanding of how ADHD is treated nationally.
I combine active NIH-funded research with hands-on clinical practice — most ADHD psychiatrists do one or the other. My 2019 JAMA Network Open study on antipsychotic prescribing in youth with ADHD has 411+ citations and changed treatment guidelines nationwide. I'm an Assistant Professor at Columbia University, board-certified in both adult and child/adolescent psychiatry, and I maintain the most comprehensive ADHD knowledge base from any active ADHD researcher at ryansultan.com with 70+ evidence-based pages.
Yes. I evaluate and treat adults with ADHD, including late-diagnosis cases — people who were never identified in childhood but have struggled with attention, executive function, and focus their entire lives. I also specialize in treatment-resistant ADHD, complex comorbidities (anxiety, depression, substance use), and medication management including both stimulant and non-stimulant options.
A comprehensive ADHD evaluation includes a detailed clinical interview covering your symptoms, history, functioning across settings (work, relationships, daily life), prior treatments, and screening for comorbid conditions like anxiety, depression, and sleep disorders. I use evidence-based assessment tools and take time to understand the full clinical picture before recommending treatment options, which may include medication, behavioral strategies, or a combination of both.
Yes. I manage ADHD medications including stimulants (methylphenidate, amphetamine-based medications like Adderall and Vyvanse) and non-stimulants (atomoxetine/Strattera, guanfacine/Intuniv, viloxazine/Qelbree). As a researcher who studies ADHD pharmacology, I take an evidence-based approach to medication selection, dosing, and monitoring — including for complex cases involving medication combinations and treatment-resistant ADHD.
I practice at Integrative Psych NYC, located at 80 Eighth Avenue in Chelsea, Manhattan (near the West Village). I also hold faculty appointments at Columbia University Irving Medical Center and NewYork-Presbyterian Hospital. You can request a consultation at integrative-psych.org.
My research and clinical expertise have been featured in: