Our Team
Our psychologists, social workers, and art therapists see children, teens, adults, couples, and families in Chappaqua, Hartsdale, and by telehealth. Because we work as one practice, your clinician can consult with colleagues across specialties whenever your care calls for it. Use the filter to find someone by age group, area of focus, or approach, or contact us and we'll help you find a good fit.
Emily Bly, PhD
CEO, Clinical Director, Licensed Clinical Psychologist
Dr. Bly founded Psychology Partners Group on the idea that people do best when they're matched with the right expertise and feel at ease with their clinician. She works with adults, adolescents, and couples on anxiety, depression, ADHD challenges, relationship strain, and major life transitions, including infertility, adoption, and divorce.
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Lily Brown, PhD
Clinical Psychologist, Postdoctoral Resident
Dr. Brown is a postdoctoral resident in clinical psychology who works with adolescents and adults on trauma, anxiety, depression, and life transitions. Her approach is collaborative, integrative and grounded in CBT and other evidence-based models.
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Marissa Caldarola, LCSW
Licensed Clinical Social Worker
Marissa is an EMDR-trained therapist with more than seven years of experience treating trauma, substance use, anxiety, and depression in children, adolescents, adults and couples.
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Kaitlin Carson, PhD
Licensed Clinical Neuropsychologist
Dr. Carson is a licensed clinical psychologist who conducts neuropsychological, psychoeducational, and psychological evaluations for children, adolescents, and adults.
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Jessica Duffy, LCSW
Licensed Clinical Social Worker
Jessica is a licensed clinical social worker with twelve years of experience supporting adolescents, adults, couples, and families through anxiety, ADHD, trauma, and family or relationship conflict.
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Danielle Guerrero, PhD, NCSP
Nationally Certified School Psychologist
Dr. Guerrero is a nationally certified school psychologist who works with children and adolescents on anxiety, ADHD, emotional regulation, and school-related difficulties, and who conducts psychoeducational evaluations.
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Lorens Hidalgo, LCSW
Licensed Clinical Social Worker
Lorens is a bilingual therapist who offers care in English and Spanish to adults, adolescents, couples and families dealing with trauma, anxiety, depression, and relationship conflict. Her approach is attachment-focused and psychodynamic.
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Melissa Klay, PhD, LCAT, ATR-BC
Licensed Clinical Psychologist, Director of Art Therapy Program
Dr. Klay is a licensed psychologist and board-certified art therapist with more than 25 years of experience treating complex trauma, eating disorders, anxiety, and emotional dysregulation in children, adolescents, and adults. She directs PPG’s art therapy program.
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Eva Leighton, PhD
CFO, Training Director
Dr. Leighton is a licensed clinical psychologist who works with adults, couples, children, and families on trauma recovery, substance use, parenting and behavioral concerns, and relationship difficulties. Her style is warm and supportive, with a natural sense of humor.
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Gerard Micera, PsyD
Licensed Clinical Psychologist
Dr. Micera is a licensed clinical psychologist and performing arts educator who works with children, adolescents, adults, couples, and families on anxiety, depression, and life transitions. His style is warm, humorous, and engaging.
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Emily Mudge, LCSW
Licensed Clinical Social Worker
Emily is a licensed clinical social worker and parent coach who works with children, adolescents, adults and families on anxiety, depression, and emotional dysregulation. She helps parents turn what happens in therapy into everyday strategies at home.
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Heather Rosen, PhD
Licensed Clinical Psychologist, Director of Eating Disorders Program
Dr. Rosen directs PPG’s Eating Disorders Program. A certified Family-Based Treatment (FBT) supervisor and former Mount Sinai faculty member, she treats adolescents and young adults and works closely with their families toward recovery from eating disorders.
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Valerie Scelsa, PhD
Licensed Clinical Psychologist
Dr. Scelsa specializes in anxiety, OCD, ADHD, ARFID and related behavioral challenges in children, adolescents, and young adults, and coaches parents to support their child’s progress.
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Megan Sedita, PsyD
Licensed Clinical Psychologist
Dr. Sedita is a licensed clinical psychologist who works with adults, adolescents, and couples on trauma, anxiety, mood, and relationship difficulties. She trained at the VA Hudson Valley Health Care System, working with Veterans.
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Kate Testa, MA
Art Therapist in Residence
Kate is an art therapist who works with children and adolescents in grades preK–12, with a focus on neurodiverse young people, including autistic children, English language learners, and students with learning or physical disabilities. She also offers individual art therapy for adults, on its own or alongside traditional psychotherapy.
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A. Jordan Wright, PhD, ABAP, ABPP
Assessment Director
Dr. Wright is a board-certified assessment psychologist and NYU faculty member who serves as PPG’s Assessment Director, supervising evaluations and consulting on complex cases.
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