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Dr. Sonia Jiménez Medina

Dr. Sonia Jiménez Medina is a Clinical Psychologist Postdoctoral Fellow, holding a PsyD from Albizu University in San Juan, Puerto Rico. With a focus on general youth, child, adolescent, and emerging adult concerns, her professional journey is marked by a commitment to supporting families and guiding children through various challenges. Emphasizing multicultural diversity in both…

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Dr. Laura Pellerzi

Dr. Laura Pellerzi is a school psychologist and postdoctoral fellow, the highest level of clinical and academic training. Her training consists of a Master of Science in Psychology of Bilingual Students, an advanced certificate in Bilingual School Psychology, and a Doctor of Philosophy in School Psychology from Fordham University. She has extensive education and experience…

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Dr. John Krachenfels

John Krachenfels is a licensed clinician with over 3 decades of clinical experience. His training includes a Master’s degree in Social Work from Stony Brook University with a specialization in substance abuse treatment and a Doctorate in Clinical Psychology from the Derner Institute of Advanced Psychological Studies at Adelphi University. He also has a Master’s…

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Dr. Judith Zackson

Doctorate in Clinical Psychology from City University of New York Clinical Director of Greenwich Psychology Group Dr. Judith Zackson is a licensed clinical psychologist in CT and NY with over 20 years of clinical experience. She is the founder and clinical director of Greenwich Psychology Group. Her practice focuses on anxiety, stress management, relationship issues,…

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Take the GPG Symptom Checker

At Greenwich Psychology Group, our symptom checker helps clients track their symptoms of depression or anxiety. Taking the assessment doesn't provide a formal diagnosis, but it can help you determine what next steps you may need to take. The evaluation uses a series of questions to review the feelings and symptoms you've experienced over the past two weeks. The results will help you distinguish if professional help is the best next step.

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