Dawn Feldpausch, LCSW

Karen Tonner, MSN, PMHNP-BC is an ANCC board-certified Psychiatric Mental Health Nurse Practitioner with over eight years of experience providing psychiatric care in outpatient and community mental health settings. She works with patients across the lifespan and treats a broad range of mental health conditions, including depression, anxiety disorders, attention-deficit/hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), and post-traumatic stress disorder (PTSD).

Karen primarily provides medication management in conjunction with supportive therapy, using evidence-based practices to help patients achieve symptom relief and improved functioning. Her approach to care is holistic, person-centered, and collaborative, emphasizing shared decision-making and individualized treatment planning. She strives to create a welcoming, approachable, and supportive environment where patients feel comfortable being themselves and actively participating in their care. She believes that understanding each patient’s unique experiences, goals, lifestyle, and strengths is essential to effective mental health treatment.

Karen earned her Bachelor of Science in Nursing from Kennesaw State University and her Master of Science in Nursing from the University of Alabama at Birmingham. She is dedicated to continuing education to remain current with psychiatric research and is committed to delivering compassionate, high-quality care that helps patients feel heard, respected, and empowered.

Dr. Justine Sever Chilelli, DO, earned her medical degree from the Lake Erie College of Osteopathic Medicine and completed her psychiatry residency and child and adolescent fellowship at the University of South Florida. She is board certified in General Psychiatry and Child and Adolescent Psychiatry. Her experience includes treating children, adolescents, and adults across outpatient, inpatient, consultation-liaison, school-based, and residential settings.

Dr. Chilelli values a collaborative, team-based approach where she and her patients work together to build a treatment plan. She emphasizes open and honest communication, aiming to improve quality of life and reduce the impact of mental health symptoms.

In the initial appointment, Dr. Chilelli focuses on understanding each patient’s history, concerns, and goals. She then develops individualized treatment plans that align with those goals, ensuring care that is thoughtful, supportive, and tailored to each patient’s needs.

Dr. Rachel Bennett is a double board-certified physician in General Adult and Child and Adolescent Psychiatry.  She graduated magna cum laude from Rosemont College, earning a Bachelor of Arts degree in Biology with dual minors in Biochemistry and English Literature.  She earned her medical degree from Drexel University College of Medicine with a concentration in Medical Humanities.  Dr. Bennett completed residency training at the Hospital of the University of Pennsylvania and a Child and Adolescent Psychiatry Fellowship at the Children’s Hospital of Philadelphia.  Her areas of research interest and publication during undergraduate and medical study and training have included pediatric palliative care, caregiver burden, autism spectrum disorders, and attachment-based family therapy.

Before joining Talkiatry, Dr. Bennett worked for nearly 12 years as a staff psychiatrist for Prospect Crozer Keystone Health System.  Her extensive clinical experience includes providing in-person and telepsychiatric care in a variety of settings including outpatient psychotherapy and community mental healthcare practices, hospital-based clinics, and school-based treatment programs, as well as emergency, consultation-liaison, and inpatient psychiatry.

Dr. Bennett’s treatment approach features an appreciation of the power of narrative in pursuit of deep self-understanding and meaningful personal progress.  She offers thorough assessment in an approachable, warm, and authentic manner, emphasizing the importance of lifestyle factors, the mind-body connection, relationships, and therapeutic rapport in collaboratively empowering her patients to achieve positive change, recovery, and resilience.  She has training and experience in a wide range of therapeutic modalities, including supportive, psychodynamic, cognitive-behavioral, and family psychotherapy as well as positive psychology, and Dr. Bennett’s strong systems-oriented perspective facilitates her provision of evidence-based care both as an individual psychiatrist and in collaboration with specialized medical and therapeutic care providers when appropriate.

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.

Dustin Cooley, LISW-S, earned a Master of Clinical Social Work from Ohio University and obtained independent licensure while working in community mental health. With over a decade of experience, Dustin has supported clients from all walks of life, addressing a wide range of emotional and behavioral concerns. In addition to his clinical work, he has served as a consultant for primary care physicians, providing guidance on integrating mental health support into overall patient care.

Dustin values a person-centered and conversational approach to therapy, focusing on individual growth and meaningful change. He tailors his work to each patient’s goals, ensuring that therapy aligns with their unique needs and values. His goal is to create a collaborative environment where patients feel comfortable exploring their challenges and empowered to make positive changes in their lives.

Dustin begins by exploring each patient’s goals and expectations of therapy, emphasizing the importance of creating a safe, authentic space. He collaborates with patients to develop a personalized treatment plan, drawing from various therapeutic approaches to best support their individual needs and objectives. His process is flexible and adaptive, ensuring care that is both effective and deeply personal.

Trevor Ramkissoon, LPC, LMHC, is a Licensed Professional Counselor in New Jersey and a Licensed Mental Health Counselor in Washington. For more than 20 years, he has worked with individuals, couples, and families in both clinical and corporate settings. His background includes therapy, crisis intervention, clinical supervision, and behavioral health consulting. He holds a Master’s in Counseling from Kean University and a Bachelor’s in Psychology from Montclair State University. Trevor’s approach integrates Cognitive Behavioral Therapy (CBT), Eye Movement Desensitization and Reprocessing (EMDR), mindfulness, and holistic care to support the whole person—not just the problem.

Patients can expect Trevor to listen carefully, ask thoughtful questions, and help identify patterns that bring clarity to their experiences. He values honesty and open communication, even when discussing difficult topics. His goal is to help patients feel grounded, confident, and empowered to navigate life’s challenges.

Trevor begins with an open conversation to understand what’s been happening and what patients hope to change or explore. Together, he and his patients set goals and develop a plan tailored to their pace and comfort level, creating a collaborative path toward lasting growth and well-being.