Will Siu, MD, DPhil



Medication Management

Ketamine Facilitated Therapy


About Me

Dr. Siu grew up in California, where he completed college at UC Irvine and medical school at UCLA. Midway through medical school he pursued research interests at the National Institutes of Health in Washington, DC and ultimately completed a doctoral degree at the University of Oxford. After finishing medical school he moved to Boston where he joined the faculty at Harvard Medical School and completed a psychiatry residency at the Massachusetts General Hospital and McLean Hospital. Dr. Siu remained on faculty at Harvard for two years while working at McLean, the nation’s top free-standing psychiatric facility—a distinction it has held for more than a decade. Dr. Siu subsequently moved to New York City where in addition to having a private practice, he has been trained by MAPS in MDMA-assisted psychotherapy and provides ketamine facilitated psychotherapy.

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Treatment Philosophy

While medications can play important role in the treatment of mental illness, I believe that lasting healing involves psychotherapy. During my psychiatry training I spent time learning from both classical Freudian psychoanalysis and Jungian analysis. I found that learning from both approaches helped me to integrate Western medicine and Eastern philosophies. I support meditative and spiritual practices in those who have interests in these areas.


Although I do prescribe, many clients that I treat are not on medications. I believe that medications can be helpful in certain situations though I am always mindful of reducing or discontinuing them as soon as my clients and I feel that life can be managed without them. In sum, I view the therapeutic relationship as the agent which leads to lasting change, while medications can be helpful in the short term.


Lastly, I see my role in a treatment relationship not as a healer, but as someone who can use my skills and experience to help people engage their inner healer, to heal themselves. In other words, I see the goal of treatment as to one day not need psychotherapy or medications.

Treatment of conditions includes:

  • Mood Disorders (Major Depression, Bipolar Disorder)

  • Anxiety Disorders

  • Post Traumatic Stress Disorder

  • Personality Disorders 

  • Substance Use Disorders

  • Relationship difficulties

  • Social/dating/performance difficulties

  • Integration of psychedelic experiences (ayahuasca, LSD, psilocybin, MDMA)


Description of Services

  • ​Regular office session: $500 (50 minutes): Includes individual therapy and medication management.

  • Ketamine facilitated therapy session: See section below on ketamine for more information

  • House calls: For those who prefer the comfort and anonymity of treatment in the privacy of their homes, Dr. Siu provides personalized in-home treatment packages.


  • Insurance: Dr. Siu is not a part of any insurance networks.

  • Payment: Payment is expected at the time of your visit, by cash, check, or Zelle digital payment.

  •  Out-of-network/PPO benefits may cover some/all of your paid invoices.





  • After evaluation of psychiatric and medical history, Dr. Siu may offer ketamine facilitated therapy

  • This service is only offered as part of ongoing weekly therapy


  • Ketamine routes of administration may include oral lozenges or intramuscular injection during 2 hour in-office sessions

  • For more information on this approach, the following podcasts may be helpful:

Psychedelics Today: Ketamine Therapies

Neurohacker: Unlocking the Potential of Ketamine Therapy



280 Madison Ave
New York, New York 10016


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