Claudia Diez

Dr. Claudia Diez is a consulting and clinical psychologist in private practice in New York City, the Hudson Valley, and remotely for international access. She has expertise in individual psychotherapy for adults, couples counseling, and coaching for working dyads (co-founders, business partners, friends, or family working together). Years of intensive hospital experience in both South America and New York deepened her understanding of non-ordinary states of consciousness and the human drive for insight and transformation, leading to her peer-recognized diagnostic and therapeutic skills.

Having trained in most major lines of psychotherapy—including Psychodynamic, CBT, AEDP, Interpersonal, EFT, and Terry Real's Relational Life Therapy—she integrates them moment by moment as best fits the client, a flexibility that allows for 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. She also integrates transpersonal, depth psychology, and mindfulness into her practice, and is a MAPS-certified researcher and practitioner who helps clients integrate psychedelic experiences into a coherent, purposeful life path.

Dr. Diez obtained her doctoral degree in Clinical Psychology from the New School University in New York City, with post-doctoral education from Harvard University (Program on Negotiation), NYU's Post-Doctoral Program in Psychotherapy and Psychoanalysis, and The William Alanson White Institute (couples therapy certification). Her clinical formation spans more than two decades of cross-cultural training and practice in New York City and abroad (Buenos Aires and Córdoba, Argentina). She is a voluntary faculty member and Assistant Professor of Psychiatry at Mt. Sinai's Icahn School of Medicine, and a former Assistant Clinical Professor of Psychiatry at Columbia University.

Outside of her clinical work, Dr. Diez is a sound meditation practitioner and passionate conservationist who spends much of her time restoring and protecting wildlife habitats around her home in the Hudson Valley. Her work blends Western and Eastern perspectives, drawing from neuroscience, depth psychology, and meditative practices to offer a grounded, emotionally attuned presence that is both gentle and direct.