Harriet Marritz, PA Psychologist PS005839L

Harriet Marritz is a licensed psychologist practicing in Pennsylvania with more than 35 years of clinical experience. Her credential, PA Psychologist PS005839L, signifies state licensure to practice psychology in Pennsylvania and reflects a long history of professional work in the field.

Her clinical training emphasizes solution-focused Cognitive Behavioral Therapy, Motivational Interviewing, and Dialectical Behavior Therapy. She applies these evidence-based techniques flexibly, tailoring each session to the individual and taking a person-centered, trauma-informed stance when appropriate. The result is a practical, goal-oriented approach that also honors each person’s unique history and needs.

Harriet has extensive experience supporting people through anxiety, stress, depression, grief, and life transitions, and she works with related concerns such as caregiver stress, mood disorders, panic and panic attacks, social anxiety, alcohol-related issues, self-harm, and challenges common to young adults. She aims to offer an accepting, supportive, and nonjudgmental atmosphere while helping clients build coping skills and strategies.

Although she generally provides counseling in English, she grew up in a bilingual English-Spanish household and speaks serviceable Spanish. Outside of her clinical work she enjoys spending time in nature, gardening, reading, and volunteering in her community around social justice issues.

Evidence-based approaches for online therapy

Harriet Marritz commonly draws on solution-focused Cognitive Behavioral Therapy and Dialectical Behavior Therapy in her online work. Solution-focused Cognitive Behavioral Therapy helps identify practical, concrete steps to change unhelpful thoughts and behaviors and is often used for anxiety, stress, and depression. Dialectical Behavior Therapy teaches skills for emotional regulation, distress tolerance, and interpersonal effectiveness and can be especially helpful for managing intense emotions and self-harming behaviors.

She also uses Motivational Interviewing when clients are facing ambivalence about change; this approach emphasizes collaboration and supports people in finding their own motivation for making healthier choices. Choosing the right approach is a collaborative process - Harriet will work with each person to assess needs, goals, and preferences and tailor techniques that fit their situation.

Online therapy options such as video calls, phone sessions, live chat, and text-based messaging make it easier to schedule sessions around daily life and to access licensed professionals from home or elsewhere. These formats offer flexibility for different communication styles and can support ongoing progress even when in-person visits are not feasible.