Dr. Ziv Cohen Headshot

Dr. Ziv Cohen MD

Ziv Ezra Cohen, M.D., was trained in medicine and psychiatry at the Albert Einstein College of Medicine, at Cornell University, and at Columbia University.

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Book Your Appointment Today with Principium Psychiatry.  All appointments are in the comfort of our discrete midtown office, near Columbus Circle.

Principium Psychiatry — An Innovative Psychiatric Clinic in NYC

Located in the heart of New York City, 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.

If you’re looking for a psychopharmacologist or psychiatrist in Manhattan, NY, Principium Psychiatry is here to help. Learn more about our innovative mental health practice and feel free to schedule an appointment whenever you’re ready. Our clinic specializes in the comprehensive treatment of mood and anxiety disorders. With three convenient locations in Grand Central Station, Wall Street, Greenwich and Santa Monica, CA, we offer numerous types of treatments tailored to each individual’s needs.

An Awesome Team Ready to Help

Take a look at our amazing team at Principium Psychiatry

Psychiatry Services in Columbus Circle NYC

At our clinic, we aim to bring all our patients effective and up-to-date treatments. In addition to traditional psychotherapy and psychopharmacology in NYC, we offer innovative depression treatments like Transcranial Magnetic Stimulation (TMS), IV ketamine, and intra-nasal ketamine (Spravato) therapy. Our psychiatrists in New York City also use genetic testing to ensure you receive medications compatible with your body’s unique biology.

By offering innovative psychiatric treatments, we can serve the widest range of patients possible, from those with mild but troublesome symptoms to those with severe and persistent symptoms who have struggled to find effective treatment in the past. We can provide care with or without medication or use a combination of strategies tailored to your needs. Our psychiatrists and psychologists take the time to consider all aspects of your situation and walk you through multiple treatment options, so you can make the best choice for you.

The services we offer at our psychiatric clinic in New York include:

  • PsychotherapyWe 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.
  • PsychopharmacologyPsychopharmacology 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.
  • TelepsychiatryLocal 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.
  • Ketamine therapyIn 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. Intra-nasal 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.
  • TMSTranscranial 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.

In addition to a familiar pay-per-appointment model, we offer a six-month concierge service, which takes care of prescription charges and gives you more flexible options for scheduling and rescheduling. Most of the treatments we provide for mood and anxiety disorders are covered by insurance, and although we are out-of-network, we will provide invoices you can submit to receive reimbursement. For TMS, we do accept medicare and work with most major insurances.


Your out of network benefits will reimburse you for the cost of treatment. Call our office for further details.

What Our Patients Say

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All appointments are in the comfort of our discrete midtown office near Columbus Circle.