Maryanne Garnsey, LMFT

Penny Clark is a Licensed Professional Counselor, who earned her Master of Arts degree in Counseling Psychology at Monmouth University in West Long Branch, New Jersey in 2004. Penny also completed a one-year training to become a Certified Health Coach through the Institute for Integrative Nutrition in New York in 2017. Penny has more than 20 years of counseling experience and has worked with individuals, couples and families, beginning by working with 9/11 displaced workers and recovery workers, including police, firemen and EMTs, and then Hurricane Katrina and Superstorm Sandy families, after which she worked with bereaved military families, homeless veterans, and other homeless men. Penny has done individual, couples, career and relationship counseling. Penny has worked in various levels of care including inpatient, outpatient, intensive outpatient and partial care programs. Penny has answered the National Suicide Prevention Hotline 800-273-TALK, has worked in a psychiatrist’s office, and in her own private practice. Penny also worked at a drug and alcohol detox and rehabilitation program.  Penny has worked with individuals with Depression, Anxiety, PTSD, health and medical challenges, substance abuse, and the specific challenges that seniors face.

Penny provides a safe, therapeutic environment in which clients can share and process their thoughts and feelings, gain insight, and set and reach realistic and achievable goals. Penny’s primary goal is to develop a trusting relationship with her clients and helping them to improve their lives.

Penny uses Cognitive Behavioral Therapy, (CBT,) Positive Psychology, Psychodynamic Therapy, Solution Focused Therapy, Motivational Interviewing, and Psychoeducation while working with clients. Penny enjoys assisting clients in determining where they are and where they would like to be, the steps they need to take to get there, and in identifying and overcoming any obstacles that may be in their way.

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Demetries North holds the position of Licensed Professional Counselor with over 20 years of experience across mental health, substance use, and public health settings. He has worked extensively with adults, Veterans, justice-involved individuals, and underserved populations. Demetries currently serves in senior clinical leadership roles within community mental health and federal systems and has experience in outpatient, integrated primary care, forensic, and substance use treatment programs. He is a doctoral candidate in Health Administration with a focus on public health education and holds multiple state licenses, allowing him to provide care across several jurisdictions.

Demetries values collaboration, transparency, and mutual respect in the therapeutic relationship. He takes time to listen carefully and understand each client’s concerns without rushing or making assumptions. His approach is practical, structured, and supportive, with an emphasis on real-life progress. He works to create a calm, non-judgmental environment where clients feel safe discussing complex or sensitive issues, particularly when navigating stress, trauma, life transitions, or long-standing patterns.

Demetries begins with a thorough initial session focused on history, current concerns, strengths, and goals. He uses evidence-based assessment tools when appropriate and collaborates with clients to develop individualized treatment plans that evolve over time. Sessions emphasize skill-building, insight, accountability, and measurable progress, with regular goal reviews and coordination of care as needed.

Gretchen attended James Madison University for her undergraduate studies and graduate school at Virginia Commonwealth University and Boston University. She has practiced for three years in various settings, including residential facilities for children, acute care facilities, and private practice, where she successfully supported clients with neurodiversity in improving executive function, emotional regulation, and interpersonal relationships. Recognizing the complexities of neurodiversity beyond traditional clinical frameworks, Gretchen collaborates with medical professionals, educators, and families to create inclusive environments that foster success for individuals with neurodivergent traits.

Clients can expect to gain a deeper understanding of their thought patterns and uncover the underlying meanings behind their reactions. Through a collaborative and reflective process, they’ll develop greater self-awareness, challenge limiting beliefs, and gain clarity in their personal growth journey. This approach empowers clients to make more informed, intentional choices in their lives.

Gretchen takes a direct yet supportive approach, evident from the very first session. She integrates psychoeducation, somatic techniques to enhance body awareness, and strategic reframing to help clients uncover core beliefs that may be contributing to their challenges.

Dr. David Guggenheim is an experienced clinical psychologist and health care administrator. He has worked with patients at different stages of life, including children, adolescents, and adults, and he has treated patients living with a wide range of mental health conditions, including anxiety, depression, post-traumatic stress disorder (PTSD), substance use, and attention-deficit hyperactivity disorder. Dr. Guggenheim has specific training in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and foundational training in dialectical behavioral therapy. Prior to joining Talkiatry, Dr. Guggenheim served as the Chief Behavioral Health Officer at Callen-Lorde Community Health Center in New York City, specializing in LGBTQ+ health care. In that role, he oversaw teams of providers including psychiatrists, psychologists, and social workers, who collectively provided care to thousands of patients in the New York metropolitan area. While at Callen-Lorde, he also served as co-chair for the behavioral health subcommittee of the Community Health Center Association of New York State; worked as an Adjunct Professor at Post University; and performed volunteer clinical work at the Weill Cornell Center for Human Rights. Before joining Callen-Lorde, Dr. Guggenheim worked as Associate Chief Behavioral Health Officer at Community Health Center, Inc., a federally qualified health center in Connecticut. A recognized expert, Dr. Guggenheim has delivered lectures to audiences ranging from medical schools to corporate executives, and he has been quoted in national media including The Advocate, Yahoo Finance, and Teen Vogue. Dr. Guggenheim has also been honored with an Early Career Achievement Award from the American Psychological Association in 2016. Dr. Guggenheim received his Bachelor of Arts from the University of Connecticut in 2002 and his Doctor of Psychology in Clinical Psychology from the American School of Professional Psychology at Argosy University/Washington, DC in 2009.

Avril Dennis is a Licensed Clinical Social Worker with experience in outpatient and residential settings. She earned her MSW from Fordham University and holds a Post Graduate Certificate in Interpersonal Trauma. Licensed in Florida and New York, she has spent over 25 years practicing in the New York area and the last decade in Florida. She has wanted to be a clinical social worker for as long as she can remember.

Avril believes in starting where each client is and moving at a pace that feels right. She is open, understanding, and supportive, while also willing to gently challenge unhelpful thinking when appropriate. She has worked with trauma, LGBTQAI+ clients, chronic health concerns, anxiety, stress, sobriety from alcohol, self-esteem issues, and life transitions such as marriage, divorce, career changes, relocation, and caring for aging parents.

Avril begins by exploring what brings a patient to therapy and understanding their current circumstances. Through a collaborative, humanistic approach, she examines both present concerns and relevant life experiences that shape today’s challenges. She integrates a range of therapeutic tools and practical strategies so clients can begin building skills and finding relief right away.

Paul Fairbanks is a Licensed Clinical Professional Counselor (LCPC) with 11 years of experience supporting individuals from diverse backgrounds. He has worked in both outpatient and inpatient settings and holds a Master’s Degree in Counseling from Argosy University. He maintains independent licenses in Illinois and Arizona and is dedicated to fostering growth and well-being in his patients.

Paul uses a client-centered approach grounded in acceptance, understanding, and empathetic connection. He believes positive change is possible with the right environment and mutual commitment. He partners closely with patients, utilizing Cognitive Behavioral Therapy and other evidence-based methods to achieve the best outcomes.

Paul works collaboratively to navigate life’s challenges, whether they are personal, family, or relationship-related. He provides tailored solutions for each patient, with experience in marriage and couples counseling, blended families, individual therapy, adolescents, ADHD, anxiety, and depression. His goal is to create meaningful progress that empowers patients to succeed.

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