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Claudia Diez

Dr. Claudia Diez , PhD

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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 diagnostic and therapeutic skills; extensive private practice led her to specialize in facilitating interpersonal awareness and change, with a focus on:
  • Peer Relationships
  • Relationship Issues
  • Life Balance
  • Life Transitions
  • Couple Therapy
Having trained in most major lines of psychotherapy (Psychodynamic, CBT, AEDP, interpersonal, EFT, 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 and dyads 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.

Dr. Claudia is the author of “If the sons didn't know | Bernie Madoff's family business”. Published in Psychoanalytic Perspectives on Knowing and Being Known. Routledge Press: New York. 2019.
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Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed

Based on patient feedback. Read the reviews


WebMD Preferred Provider (2022)
preferred provider
Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.


Dr. Diez's Rating
5 Reviews
Patient Perspective
5.0 Explains conditions and treatments
5.0 Takes time to answer my questions
5.0 Provides follow-up as needed
Office Rating
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274 Madison Ave, New York, NY, 10016
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Claudia Diez, PhD. Psychologist, Individual & Marriage Couples Therapist
274 Madison Ave
New York, NY, 10016
Showing 1-5 of 5 reviews
"Dr. Diez truly changed my life and the way that I view the world in the most positive way. I’d been struggling in my relationship with my partner and after each session, I feel more connected. She’s given me the tools to better communicate and listen. I’ve never experienced the level of support, kindness and guidance that Dr. Diez continues to provide. If possible, I’d give her ten stars. "
  • September 8, 2022
"Committing to my weekly sessions with Dr. Diez over the past couple of years has been one of the most important life decisions I've ever made. Therapy can be such a powerful tool in building your best self and it takes a great therapist to guide you on the journey, which can sometimes be long and grueling. Dr. Diez has been such a great guide. Her calming presence and openness is what has motivated ..."
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  • May 31, 2022
"Dr. Diez is a fantastic therapist. She is kind, caring, and very insightful. Talking to Dr. Diez is like talking to a close friend who really cares about your problems. Her advise is spot on, and I cannot recommend her highly enough. "
  • December 10, 2021
"Dr. Diez provided invaluable guidance and support when my marriage was ending. She offers candid insights and is able to get to the heart of the matter very quickly. I can’t recommend her highly enough. "
  • September 29, 2020
"My wife and I had some disappointments with two other couple therapists before coming across Dr Diez. She is very fast at noticing the unspoken, and quickly helped us to communicate (instead of arguing) - We are starting to hope we can fix our marriage. 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 enjoy spending ..."
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  • April 30, 2020


Claudia Diez, PhD. Psychologist, Individual & Marriage Couples Therapist
274 Madison Ave
New York,NY,10016
  • Accepting New Patients
  • Accepting New Patients



Medical School
New School University in New York City
Harvard University (PON)
New York University
The William Alanson White Institute (couples therapy certification)


Please verify insurance information directly with your doctor's office as it may change frequently.
  • Self Pay
  • Most insurances accepted. Call us with any questions.