Andrea Hamilton, LPC

Lisa Mazzotti is a Licensed Professional Counselor in Colorado, and a Licensed Mental Health Counselor and Certified Addiction Professional in Florida. She earned her bachelor’s in Psychology and a master’s in Human Development Counseling from the University of Illinois. With more than 30 years of clinical experience, she has worked with adolescents, adults, and older adults in individual, couple, family, and group settings. Lisa also served as an adjunct professor, teaching psychology and sociology courses for over a decade in high schools, colleges, and correctional facilities. Her extensive background includes treating addictions, trauma, mood and anxiety disorders, OCD, ADHD, self-harm, and eating disorders.

Lisa meets each person where they are, creating a safe space where clients feel heard, valued, and respected. She emphasizes open communication, collaboration, and mutual trust, encouraging patients to share what feels most comfortable and meaningful to them. Lisa’s goal is to empower clients to identify and pursue their personal goals at their own pace, fostering lasting growth. She brings compassion, positivity, experience, and humor to her sessions, reminding patients that change begins with understanding and acceptance.

Lisa tailors her approach by exploring each patient’s history, strengths, and priorities to create an individualized treatment plan. Drawing on Acceptance and Commitment Therapy (ACT), Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Rational Emotive Behavior Therapy (REBT), Mindfulness, Motivational Interviewing, and Solution-Focused Therapy, she adapts her methods to meet each client’s needs. Lisa has facilitated Intensive Outpatient (IOP), Partial Hospitalization (PHP), and inpatient group therapy for co-occurring disorders. She supports clients with a broad range of concerns, including anxiety, depression, PTSD, grief, self-harm, abuse, and both physical and psychological addictions.

Michael Greenwald is a Licensed Clinical Social Worker who earned his Master’s degree in clinical social work from the University of Chicago. He has experience in a variety of clinical settings, including primary care centers, college campuses, and long-term care facilities for adults with serious mental illness.

Michael specializes in solution-focused therapy, offering practical techniques to help patients manage challenges in the present moment. While he primarily draws from Cognitive Behavioral Therapy (CBT) and Acceptance and Commitment Therapy (ACT), he tailors each session to meet the unique needs of the patient. He brings compassion, creativity, and a sense of humor to every session.

Michael approaches therapy as a collaborative process, guiding patients toward goals aligned with their personal values. He helps reinforce strengths while motivating meaningful change. After understanding a patient’s history and reasons for seeking therapy, he works with them to develop clear, actionable goals to support growth and a more fulfilling life.

Dr. Long is a board-certified psychiatrist with over 14 years of experience treating adult and older adult patients from a wide variety of cultural and socioeconomic backgrounds. Dr. Long's practice focuses primarily on medication management, in addition to supportive and cognitive and behavioral therapy in 30-minute follow-up visits. Sometimes, Dr. Long will suggest that additional therapy be included in your treatment plan in order to provide the best outcome. Dr. Long received her medical degree from the University of Illinois and completed her residency at Northwestern Memorial Hospital in Chicago. She has worked in emergency psychiatry, community psychiatry and private practice and operated her own independent practice in downtown Chicago. Most recently she has spent over 9 years working with veterans with PTSD and other mental health issues. Dr. Long received her B.A. from Yale University, graduating cum laude with a double major in Biology and Literature. She enjoys working with a wide variety of patients of different ages and from different cultural backgrounds and has extensive experience treating mood disorders, anxiety disorders, and PTSD along with comorbid substance use disorders. Dr. Long views patients as partners working toward a common goal of improving patients' quality of life. She also appreciates the strong connection between physical and mental health and provides encouragement and support to patients to make behavioral changes that will benefit both.

Dr. Shaughnessy is boarded in adult psychiatry and has over 30 years of experience. Dr. Shaughnessy practices medication management in a supportive collaborative environment. Treatment recommendations may include psychotherapy with another professional in addition to medication management .Dr. Shaughnessy has worked with individuals having the spectrum of psychiatric disorders but is particularly interested in working with those with mood and anxiety disorders.

Dr. Victoria Mustovic is a board-certified psychiatrist trained in general adult psychiatry who specializes in perinatal, postpartum, and LGBTQIA+ behavioral health. Clinical practice focuses on managing a variety of mental health conditions with particular interests in treating ADHD, OCD, anxiety, and mood disorders. A collaborative care approach is utilized to actively engage patients in treatment decisions and planning. Medication management is integrated with therapy to support a more comprehensive clinical approach. Therapy treatment focuses mainly on supportive therapy with use of additional therapy modalities based on patient needs. An evidence-based approach is combined with consideration of individual factors in order to work with patients to create a holistic, patient-centered treatment plan. Dr. Mustovic completed an undergraduate education at Allegheny College with a bachelor's degree in biology and double minor in psychology and chemistry. Dr. Mustovic went on to pursue a Medical Doctorate at Jacobs School of Medicine and Biomedical Sciences at the University of Buffalo, graduated Summa Cum Laude, and was inducted into Alpha Omega AlphaHonor Society for academic achievement. After medical school, Dr. Mustovic completed psychiatry residency at Allegheny Health Network. Additional experience includes both co-authoring a book chapter on women's behavioral health and presenting posters on several different topics in mental health for the Pittsburgh Psychiatric Society, including a presentation on the identification and management of complex trauma in victims of sex trafficking. Dr. Mustovic has 2 years training in outpatient perinatal and postpartum behavioral health and 6 months experience working as co-facilitator in a perinatal and postpartum intensive outpatient treatment program both through the Alexis Joy D'Achille Foundation for Postpartum Depression at West Penn Hospital. Work as a co-facilitator included assisting patient groups in understanding and developing coping skills for a variety of therapy modalities including mindfulness, behavioral activation, interpersonal, cognitive behavioral (CBT), and dialectical behavioral (DBT) therapies. Dr. Mustovic is also dedicated to serving the LGBTQIA+ community with experience in LGBTQIA+ patient care over 4 years at Allegheny Health Network in a variety of clinical settings including inpatient, outpatient, and intensive outpatient programs. Dr. Mustovic is passionate about providing a supportive treatment environment to help improve equal access to care and support patients in advocating for their needs and concerns in health care settings.

Sonya R. Isler, PMHNP-BC, began her nursing journey over 30 years ago in a state psychiatric hospital in Goldsboro, NC, inspired by the poised nurse she admired at church as a child. Her path includes roles as LPN, RN, BSN, and multiple advanced practice degrees. Sonya has worked in inpatient and outpatient settings, VA clinics, and private practices. She also serves as a preceptor for PMHNP students at her alma mater, the University of North Carolina at Chapel Hill.

Sonya creates a welcoming, respectful space where patients feel safe to communicate openly. She practices active listening and values patient input when setting therapy goals. Her approach is holistic—treating the whole person—and she encourages collaboration, helping patients feel seen, heard, and empowered in their care.

Sonya reviews a patient's history before each session and begins with clear introductions and goal setting. She invites open discussion of concerns and tailors' treatment plans with patient input. She often incorporates CBT, motivational interviewing, and solution-focused therapy into care, promoting growth through supportive, personalized strategies.