Dennis Valerstain, MD

Dr. Seth Sherman is a board-certified adult psychiatrist who has been in practice for over ten years. At the heart of Dr. Sherman's clinical approach is a strong emphasis on establishing trust, rapport, and therapeutic alliance to help persons to feel and live well and to progress toward their goals, both in treatment and in life. Dr. Sherman begins with consultation, a compassionate, collaborative process of discovery that culminates in a working diagnostic impression and, in turn, treatment recommendations. For those with whom he engages in a treatment relationship, Dr. Sherman provides psychoeducation, medication management, and individual psychotherapy, this last modality predominantly drawing from both psychodynamic and behavioral psychological models to tailor treatment to each patient. On some occasions, Dr. Sherman may believe that additional therapy is needed and ask that you bring a therapist into your care team to provide the best outcome. Dr. Sherman received his medical degree from Stanford University and went on to complete his residency in psychiatry at Harvard University. After completing training, he cultivated a private practice of psychiatry in San Francisco, California, treating persons with a variety of psychiatric illnesses, while also providing consultation and clinical supervision to psychotherapists in day-treatment and office-based practices. Next, Dr. Sherman served as a psychiatry professor at the Florida Atlantic University Charles E. Schmidt College of Medicine in Florida, where, as Associate Director of the Psychiatry Residency Training Program, he provided psychiatric inpatient treatment while bringing leadership, scholarship, teaching, supervision, and mentoring to psychiatry residents and medical students. Most recently, Dr. Sherman worked as a senior medical officer/consultant psychiatrist in New Zealand's public health system, serving local communities with expert diagnosis and treatment for a wide range of mental health conditions. He also continued to supervise U.S.-based psychiatrists, along with New Zealand psychotherapists, in advanced and complex clinical psychopharmacology and psychotherapy.

Anthony Capozzi, MD, is a board-certified psychiatrist with 35 years’ experience in clinical psychiatric practice who has seen patients both in the hospital setting and out-patient care. He is a Diplomate of the American Board of Psychiatry and Neurology as well as the National Board of Physicians and Surgeons and the American Association of Psychiatric Medicine. Originally from Brooklyn, New York and received his MD from New York University after completing a 5th pathway at Booth Memorial Hospital in Queens, New York. He began his experience seeing patients with treatment refractory major psychiatric illnesses at Rockland Psychiatric Center in Rockland County, New York. He served on the psychopharmacology committee at the time. He then went on to practice outpatient psychiatry both at Rockland County Community Mental Health and Westchester County Mental Health for over 20 years in addition to having a private practice while living in New York.  He held the position as Associate Director of the division in Westchester County for over 18 years. He has been exposed to all levels of psychiatric care since it was a mixture of patients in the community as well as patients with limited income and dual diagnoses including substance abuse. His approach is to get to know his patients well in order to provide more comprehensive care. He prefers Cognitive Behavioral therapy or Rational Emotive therapy, which he feels is the most time effective and enduring therapy to help patients needs. He also has extensive experience having worked with patients with developmental disabilities, since this is an underserved need. He then went on to work in Florida both for Florida Health Care Plans, which is an HMO, and in private practice for the past 13 years.  He worked at the Counseling Center of New Smyrna Beach, providing comprehensive care. He then helped establish the Center for Behavioral Medicine in Port Orange, Florida, which provided care as part of a multidisciplinary practice. He then went on to establish Advanced TMS in Port Orange, Florida. He is interested in treatment-resistant Depression and Anxiety Disorders. He went on to work for Greenbrook TMS in the greater Orlando area practicing Interventional Psychiatry. He is certified in TMS for brain mapping with Neurostar and Cloud TMS and has experience in the use of intranasal ketamine for treatment resistant depression. He has been a member of the Neuroscience Education Institute since 2012, where he holds a certificate as a Master Psychopharmacologist and a member of the Clinical TMS Society. He has active medical licenses in Florida, Arizona and New York. He is also certified in Medical Marijuana and has completed the IV Ketamine Infusion therapy course as well as Botox training certification.

Patients working with Dr. Capozzi know that he is easy to engage with and is most interested in his patients overcoming their obstacles to reach their optimal level of functioning. He enjoys working with patients who have anxiety, mood disorders and ADHD. It is very gratifying watching patient’s blossom and overcome their psychiatric disorder and then function at their best in work, leisure pursuits and relationships. Patients working with Dr. Capozzi should know that he realizes they have been suffering with their symptoms for some time or they would not be seeking help, and he will work with the patient in collaboration to help receive the proper care.

The typical process in working with patients is to first spend time gathering a history of the symptoms. It is then important to also include significant medical history which may be primary or secondary contributing factors. Also, it is important to look at psychosocial profile and how that may contribute to the initiation of the symptoms and prevention of improvement. It is essential to form a differential diagnosis and continue to look at any ongoing issues as well as co-morbidities. He believes it is most important to discuss possible treatment modalities and take into consideration the patient’s participation in ongoing care. It is most essential to be up to date on the latest modalities in treatment and use a combination of medication, nutritional supplements and behavioral therapies that can foster lasting improvement.

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Dr. Liss was born and raised in a neighborhood in the North Bronx. He attended Queens College, CUNY where he graduated Summa Cum Laude with a B.A. in Hebrew. He completed Medical school at NYIT College of Osteopathic Medicine in Old Westbury, NY and thereafter was accepted to NUMC for psychiatry residency training. For his final year of residency training Dr. Liss was appointed to the position of Chief Resident for Academics & Research for the Psychiatry residency program at NUMC, Nassau University Medical Center. He received two awards during his residency training, including the Acute Mental Health Services Award and the Ambulatory Mental Health Services Award at the end of his 2nd and 3rd years of residency training, respectively. At NUMC, Dr. Liss underwent a rigorous training in a multitude of psychiatric settings and has experience with managing a wide array of psychiatric areas of treatment including mood/bipolar disorders, ADHD, depression, anxiety, personality disorders, as well as the intersection of medical disorders and psychiatric disorders. For his outpatient practice, Dr. Liss anticipates focusing on mood disorders, anxiety disorders, OCD, personality disorders, and family dynamics .Dr. Liss' practice focuses on a duality of treatment strategies: specifically psychotropic medication management in conjunction with non-pharmacologic treatment modalities including supportive psychotherapy, emotive supportive psychotherapy, as well as personalized variants of psychodynamic/interpersonal psychotherapy. Additionally, Dr. Liss has experience facilitating the coordination of psychosocial treatments in underserved populations.‍

Dr. Amy Prince is a board-certified adult psychiatrist who graduated from SUNY Downstate Medical Center and completed her residency training at UMass Medical Center, where she served as chief resident during her final year. Dr. Prince has worked with patients in a variety of treatment settings, including inpatient, partial hospital programs, community mental health centers, and outpatient. Dr. Prince believes that integrating therapy, psychopharmacology and lifestyle modifications can lead to the greatest gains in emotional wellness. She believes that working collaboratively with patients leads to the best outcome. Dr Prince has worked with a diverse patient population, but especially enjoys working with patients with mood disorders, anxiety, and ADHD. Dr. Prince offers supportive therapy in conjunction with psychopharmacology. In cases in which a patient would benefit from more intensive therapy than what could be done in 20-25 minute visits, Dr Prince may recommend adjunctive therapy with a licensed therapist.

Before pursuing medicine, Dr. Kenneth Ethan Lai explored a range of passions. After earning dual degrees in Biology and Biochemistry from the University of California, Riverside, he opened a popular Riverside eatery featured on The Food Channel. He later transitioned to the IT industry, earning a master’s degree and certifications, before answering his true calling in medicine, graduating from Saint Matthews University School of Medicine.

Dr. Lai believes psychiatry combines science and the art of medicine. Patients value his professionalism, patience, empathy, and attentive listening. He acknowledges the many choices patients have in providers and strives to create a welcoming, collaborative, and supportive environment for everyone seeking care.

Dr. Lai treats both adults and children/adolescents with expertise in psychopharmacology, psychotherapy, addiction, geriatrics, and dual-diagnosis care. He is trained in TMS and ECT, is a Certified Suboxone Prescriber, and offers consultations and treatment through office-based or telemedicine visits. His approach is tailored to each patient’s needs, integrating compassionate care with evidence-based treatment.

Dr. Garrick Gaffney is board certified in psychiatry by the American Board of Psychiatry and Neurology (ABPN). He earned his medical degree from Kansas City University and completed his psychiatry residency at John Peter Smith Hospital in Fort Worth, Texas. A combat veteran, he served in the U.S. Marine Corps, including a tour in Iraq, and was honored with the Navy and Marine Corps Achievement Medal and a Certificate of Commendation for exemplary leadership.

During medical school, Dr. Gaffney pursued advanced training as an Osteopathic Manipulative Medicine fellow. As a resident, he served as Chief Academic Resident and earned accolades such as Intern of the Year and Outstanding Educator of the Year twice consecutively.

Dr. Gaffney specializes in treating complex psychiatric conditions, including depression, anxiety, PTSD, OCD, bipolar disorder, and insomnia. He has presented case studies and quality improvement projects at national conferences, including the American Psychiatric Association (APA), Academy of Consultation-Liaison Psychiatry, and Association for Academic Psychiatry.

A proponent of holistic care, Dr. Gaffney integrates psychotherapy into medication management and emphasizes lifestyle modifications and evidence‑based integrative medicine.

New patients receive comprehensive evaluations to rule out medical causes of symptoms, followed by tailored treatment plans combining therapy, medication, and lifestyle adjustments. Follow‑up visits focus on symptom management through supportive, brief dynamic, or cognitive behavioral therapy, with frequent appointments until stabilization is achieved.

Dr. Gaffney is committed to collaborative, patient‑centered care that addresses both mental and physical well‑being.