A World-Class Team Ready To Help
Offering a variety of treatments suited to each individual’s needs including psychopharmacology, psychotherapy, TMS, Ketamine infusions, and e
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An Innovative Psychiatric Clinic in NYC, Greenwich, CT, & Santa Monica, CA
Located in the heart of New York City, Greenwich CT. and Santa Monica CA , Principium Psychiatry strives to provide effective, individualized mental health treatment for patients with a wide range of psychiatric needs. No matter what symptoms or concerns bring you to our convenient midtown office, our staff of caring psychologists, psychiatrists and nurses will listen carefully, make you feel welcome and recommend the treatment options that are most likely to help you reach your goals.
our affiliations
Psychiatry Services in the Heart of NYC, Greenwich, CT & Santa Monica, CA
At our clinic, we aim to bring all our patients effective and up-to-date treatments. In addition to traditional psychotherapy and psychopharmacology, we offer innovative depression treatments like Transcranial Magnetic Stimulation (TMS), IV ketamine, and intranasal ketamine (Spravato) therapy. Our psychiatrists in New York, Connecticut and California also use genetic testing to ensure you receive medications compatible with your body’s unique biology.
Psychotherapy
We use a variety of approaches to suit the individual needs of our clients. Our medical director Dr. Cohen and the rest of our team have experience treating mental health disorders using cognitive-behavioral therapy, psychodynamic psychotherapy, insight-oriented therapy, mindfulness and other evidence-based therapy styles.
Learn More About Our Psychotherapy Services Psychopharmacology
Psychopharmacology involves using medication to treat mental disorders. Our pharmacologists in Manhattan will work closely with you to find a medication that improves your symptoms while minimizing side effects. Patients seeking medication therapy typically visit us once per month or more frequently, as needed.
Learn More About Our Psychopharmacology Services Telepsychiatry
Local patients who prefer to receive treatment from the comfort of their own homes can take advantage of our convenient telepsychiatry service. All you need to receive telepsychiatry is a computer with a webcam and a reliable Internet connection.
Learn More About Our Telepsychiatry Services Ketamine Therapy
In this pioneering treatment for depression and other mood disorders, patients receive a small dose of the anesthetic ketamine through an IV infusion. Each treatment takes approximately one hour. Because IV ketamine therapy is not yet approved by the U.S. Food and Drug Administration (FDA), it is typically recommended for patients with persistent symptoms that haven’t responded to other treatment options. Intranasal ketamine (Spravato) has FDA approval for the treatment of depression. For those who prefer intra-nasal to IV ketamine, we provide this treatment in the comfort of our office.
Learn More About Our Ketamine Therapy Services TMS
Transcranial Magnetic Stimulation (TMS) treats major depression using a magnetic field to induce stimulation in targeted parts of the brain associated with depression, causing neurons (brain cells) to become more active. TMS is FDA-approved and recommended by the American Psychiatric Association. Treatment occurs over 4-6 weeks, with individual sessions ranging from 20 minutes to one hour in length. Patients stay awake during treatment and typically feel no discomfort and can immediately resume normal activities.
Learn More About Our TMS ServicesWorld-Class Physicians
Dr. Ziv Cohen
MD Psychiatrist, Founder and Medical Director
Specialization: Psychiatrist
Affiliations
Daniel Santarsieri
MD Psychiatrist, Director of Clinical Services
Specialization: Psychiatrist
Affiliations
Diana Nguyen
Psychiatric Mental Health Nurse Practitioner (PMHNP- BC)
Specialization: Psychiatric Nurse Practitioner
Naomie Jeanty, PMHNP-BC, FNP-BC
Psychiatric Mental Health Nurse Practitioner (PMHNP)
Specialization: Psychiatric Nurse Practitioner
Tess Anderson
NP Psychiatric Nurse Practitioner
Specialization: Psychiatric Nurse Practitioner
Affiliations
Sara Copperman, PMHNP
Psychiatric Mental Health Nurse Practitioner (PMHNP)
Specialization: Psychiatric Nurse Practitioner
Vimal Patel, MSN, PMHNP-BC
Psychiatric Mental Health Nurse Practitioner (PMHNP)
Specialization: Psychiatric Nurse Practitioner
Interventional Treatments
At Principium Psychiatry, we offer state of the art, cutting edge Electroconvulsive Therapy (ECT) for depression and other conditions. This treatment is provided in a private, state of the art treatment center on Park Avenue, where comfort, privacy, and safety are a priority. Principium Psychiatry’s team collaborates with a top tier anesthesia team to ensure that the treatment is comfortable and safe.
Ketamine is a cutting-edge psychiatric treatment being used to target severe medication and treatment resistant depression. Ketamine has been widely used as an anesthetic for minor procedures since the 1960s. In many countries, it is used by first aid response workers when dealing with minor trauma. The safety of Ketamine is such that it is used as outpatient anesthetic by non-physicians. The dose used to treat depression is about one quarter (1/4) of anesthetic dose.
The first line of treatment for depression and other mood disorders typically involves a combination of medication and talk therapy. This treatment strategy proves effective for many people. However, some patients may experience troublesome side effects or have persistent symptoms that fail to respond to treatment.
Every individual’s experience with depression is different, and as a result, experiences with depression treatments vary. At Principium Psychiatry, we believe everyone deserves access to the mental health care they need to feel better. That’s why, in addition to traditional psychotherapy and psychopharmacology, we offer innovative treatment options like Transcranial Magnetic Stimulation (TMS).
Intensive Outpatient Programs are structured mental health treatment programs designed to provide therapeutic support to individuals with mood and anxiety disorders. IOPs are distinct from inpatient programs because patients do not require 24/7 hospitalization. Instead, they attend regular therapy sessions, group counseling, and educational workshops while living at home or in supportive environments.
What Our Patients Say
Dr. Cohen and his team are so fantastic! They did everything they could to make me feel comfortable, and I started feeling better after the first dose of Ketamine!
The treatment was so much more comfortable than I thought it would be. I experienced slight discomfort during the first two treatments, but it was smooth sailing from then on!
The suite in which I received the treatment was comfortable and welcoming. I was able to relax during the treatments and each time I left, I felt more at peace.
Before starting TMS, I was so depressed that I couldn’t eat, sleep or get out of bed. I had stopped doing the things I enjoyed entirely, because I didn’t have the energy or interest. It took a few weeks, but I started to notice myself thinking more positively, and it kept improving from there. Thank you, Dr. Cohen!
I am so thankful to Dr. Cohen and his team! Thanks to them and the Ketamine treatment, I’m feeling better than I have in years. I was pleasantly surprised that there were no side effects.
My depression improved dramatically throughout the course of my TMS treatment. I am finally able to sleep through the night and I am looking forward to living my life again. My entire family noticed the difference in me before I did. TMS changed my life after decades of failed medications and terrible side effects. I finally feel like “me” again.
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