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Claudia Diez PhD, ABPP

Clinical and Consulting Psychologist
Certified Terry Real's Relational CoachMAPS Psychedelic Integration Therapist / Researcher
New York City, Connecticut

Board Certified by the American Board of Professional Psychology (ABPP)Assistant Professor (Psychiatry), Icahn School of Medicine at Mount Sinai Medical CenterNYS License # 017761 | CT License # 4486
Certified RLT Coach (Terry Real's Relational Life Therapy Model)Relational Coach for couples, professional dyads, co-founders, partners
MDMA-AT - MDMA Assisted PsychotherapyPsychedelics Integration and Facilitation ResearchMAPS' Legacy Supporter Sound Meditation Practitioner

About Dr. Claudia Diez

Dr. Claudia Diez is a consulting and clinical psychologist in private practice. She has expertise in individual psychotherapy for adults, couples counseling, and coaching for working dyads (cofounders, business partners, friends, or family working together.) Years of intensive hospital experience led to her peer-recognized keen, intuitive yet data based diagnostic and therapeutic skills; Her extensive private practice led her to specialize in facilitating interpersonal awareness and change, with focus on couples' conflicts and relational coaching and personal development.
Couples Therapy: Having trained in most major lines of psychotherapy (Psychodynamic, CBT, AEDP, interpersonal, EFT, and Terry Real's Relational Life Therapy among others), she integrates them moment by moment as is the best fit, a flexibility that allows optimal interventions. A decade of work with couples, dyads and groups culminated in her adoption of Terry Real's Relational Life Therapy Model for couples work, the most effective methodology for change among individuals experiencing conflict in their close relationships, whether intimate or professional.
Most recently, Dr. Diez has started integrating transpersonal and depth psychology along with the domains of traditional talk therapy and sound meditation (nada yoga) n into her work. All together these rich set of technologies make for a powerful therapeutic experience for those individuals who wish to explore these new therapeutic venues. The latter approach is very suitable for persons who use psychedelics and wish to integrate their journeys in a deep and meaningful way toward self development.

Dr. Diez is a psychedelics-assisted therapist and psychedelics integration facilitator*. Dr. Diez is trained in MDMA-AT (MDMA Assisted Therapy) and various psychedelic assisted retreats and training programs in the United States and abroad. She guides individuals or couples who use psychedelics to deepen their connection or self-knowledge.
*Disclaimer: Dr. Diez offers consultations and therapeutic guidance to psychedelics explorers and psychonauts, however she does not prescribe nor provide psychedelic medicines. Psychedelics substances have yet to become legal in the State of New York and Connecticut, where she practices. For updates regarding scientific and legal advances in the field click here 

Self-esteem psychologist

Dr. Diez has extensive experience working with a broad range of needs, including:

● Relationship conflicts (work, partners, family) ● Self-esteem and identity conflicts● Performance impediments● Mood and Anxiety Disturbances● Intimacy, Sexuality ● Traumatic experiences Psychedelics Integration and Facilitation

Self-esteem psychologist

Mental Health and Wellness Services in NYC

Dr. Diez specializes in individual and couples therapy, relational coaching for corporate dyads and groups, and psychedelics integration and facilitation ('holding space").She is a MAPS trained psychotherapist and donor, and a Terry Real's Relational Coach for individuals and couples.Contact us at moc.zeidaidualcrd%40ofni to find out more about these services

A word from my clients

"Working with Dr. Diez has profoundly affected me for the best. When we first met, I was on a number of psychotropic medications, depressed, chronically fatigued, and unable to work. After two years of twice-weekly sessions, I am a new person. I am now able to tolerate challenging emotions and experiences, engage practically with interpersonal dynamics, and I am back on track with my career. I did not know that this would have been possible for me. From the very beginning, Dr. Diez was direct, honest, and ready to help me reach for what I most needed. I am eternally grateful for the support she gave me in reclaiming my life."


May 19, 2019

"This review is long overdue. Dr. Diez was my therapist from summer 2015 until February 2019, when work moved me across the country. During that time Dr. Diez was a truly wonderful therapist who provided constant support. She was a coach, advisor, and confidant and I don't know what I would have done without her. Over a year since leaving town and I still miss her! Highest recommendation."

Patrick F.

May 27, 2020

"My wife and I were disappointed with prior couples therapist before finding Dr. Diez. She quickly noticed conflicts beneath the surface, unspoken and taboo until then. She quickly helped us learn to communicate, instead of arguing about frivolous issues - She turned our trajectory from disaster to recovery in a few meetings. Not to say the journey is over, but we are changing our ways, and that gives us hope to fix our marriage and enjoy the rest of our life together. We feel indebted to Dr. Diez. She is an excellent marriage counselor."

Jeff B.

April 19, 2020

"Claudia is a top-notch therapist. She makes the effort to listen, help you process your emotions, and helps you arrive at a concrete plan to move forward. I highly recommend her!"

Lance K.

April 21, 2020

"I’m so lucky to have met Dr. Diez. After years-long frustrating (to say the least) search for a good therapist, I finally came to her office, and my search stopped. She is very professional, at the same time you always feel welcome: she greets you with a beautiful smile, then proceeds to actively listen to you, with the calm intensity of care. She gently guides you to find your own path to clarity. She is patient and thoughtful. I’m very grateful to have met her."

Cristina S.

May 09, 2019

Contact Dr. Diez

Consultations are by appointment only.

New York City Office Location:● 330 West 58th St, New York City. NY 10019Connecticut office: ● Salisbury, Lakeville, Sharon area. For appointments please call (212) 744-8073 or email us at moc.zeidaidualcrd%40ofni
*Due to a=high volume of appointment requests we may not always be able to return calls promptly. If your call was not returned within two days, Dr. Diez may be fully booked and unable to take new patients. We apologize for the inconvenience.