John Hendrick, MD

Ernest Smith, LPC, specializes in supporting adolescents, young adults, adults, and older adults as they navigate grief, anxiety, depression, trauma, and life transitions. With a compassionate and client-centered approach, he creates a safe, nonjudgmental space for individuals to explore their experiences and build the skills necessary for healing, growth, and resilience.

Ernest draws from a range of evidence-based modalities—including solution-focused therapy, person-centered therapy, cognitive-behavioral therapy (CBT), and dialectical behavior therapy (DBT). He tailors each session to meet the unique needs of his clients, whether helping adolescents manage emotional regulation and identity development or supporting older adults in coping with grief and life changes.

Ernest provides trauma-informed care and recovery-focused strategies that foster emotional safety, self-awareness, and long-term well-being. His goal is to walk alongside each person with empathy, understanding, and practical tools that promote lasting change and inner strength.

Dr. Roxanne McClung is a board-certified psychiatrist, specializing in general adult psychiatry.  She completed her General Psychiatry Residency at the University of Texas Health Science Center at Tyler, where she served as Chief Resident in her final year of training. She earned her MD (Doctor of Medicine) from the American University of the Caribbean, a Master of Science in Clinical Psychology from the University of Texas at Tyler, and a Bachelor of Arts in Psychology from Southern Methodist University. With over 20 years of experience in the mental health field, Dr. McClung brings a uniquely comprehensive and well-rounded approach to psychiatric care.  Having served in multiple roles – including case manager, psychotherapist, and program/clinical director –she has a deep understanding of patient care across various settings and perspectives.

Dr. McClung is passionate about helping people through life’s challenges. She creates a non-judgmental, patient-centered environment that fosters open communication and collaboration. She emphasizes individualized care that integrates medicine, lifestyle interventions, and psychotherapy. Treatment plans are grounded in the understanding that mental health is influenced by biological, psychological, social, and lifestyle factors.

Dr. McClung begins with a thorough assessment to understand each patient’s history, concerns, and goals. She works collaboratively to create a personalized treatment plan, and her approach ensures clarity, respect, and patient involvement throughout the process.

Diana Sun, LMHC, is a licensed mental health counselor with over five years of counseling experience in outpatient settings. She earned her Master’s degree in Mental Health Counseling from Nyack College Alliance Graduate School of Counseling in 2020. Diana has experience working with Asian Americans, Christians, LGBTQ+ individuals, and young adults ages 18 and older. Her clinical interests include inter-generational trauma, women’s issues, stress, anxiety, and depression.

Diana believes communication is essential when setting goals and boundaries within the counseling relationship. She uses fun ice-breaker questions to help patients feel comfortable and to build a strong therapeutic connection. Diana strives to create a safe and supportive environment where patients feel heard, seen, and understood, and she welcomes feedback as an important part of the healing process.

Diana begins by understanding each client’s presenting concerns, personal history, and goals during the initial session. She then collaborates with patients to develop a treatment plan tailored to their individual needs. Her work is grounded in core counseling values such as active listening, self-awareness, and unconditional positive regard to support growth and change.

Angel Vest is a licensed clinical/independent social worker with extensive experience working in the mental health and substance use fields. Angel has worked with patients of various populations with differing levels of need. Angel's undergraduate university, where she obtained her Bachelor of Arts with a concentration in psychology, is located in Portsmouth, OH. Her graduate school, where she completed her Master's of Social Work with a concentration in advanced clinical practice, is located in Minneapolis, MN. Angel's internships were completed in Portsmouth, OH, and academic residencies were completed in Atlanta, GA. Angel has been treating substance use disorders since 2016 and other mental health conditions since 2019. She uses an eclectic and trauma-focused approach with a foundation in Motivational Interviewing and Cognitive Behavioral Therapy, accompanied by somatic interventions to enhance the mind-body connection. Angel specializes in the treatment of Insomnia Disorder, Obsessive-Compulsive Disorder, depression, anxiety, and trauma-related disorders. Angel prioritizes the therapeutic relationship as a collaborative one and will work with you to address any barriers to overall health, happiness, and well-being.

Dr. Sarah Guzman earned her medical degree from Baylor College of Medicine and completed her psychiatric residency at UT Southwestern in Dallas, TX. She served as a psychiatrist in the United States Navy and has practiced in inpatient and outpatient settings, including a state-run mental health clinic and as a civilian on a United States Army base. She provides general adult psychiatry and medication management, treating anxiety disorders, OCD, depression, bipolar disorder, ADHD, and PTSD.

Dr. Guzman strives to create a supportive, judgment-free space where patients feel heard and respected. She values psychoeducation so patients can make informed decisions about their care. Honesty, mutual trust, and clear communication are central to her approach, as she views treatment as a collaborative partnership focused on shared goals.

The initial appointment centers on understanding each patient’s history and concerns. By the second session, treatment goals are identified. From there, Dr. Guzman collaborates with patients to develop individualized treatment plans and adjust care as needed to support meaningful progress.

Dr. Mary O'Malley is board certified in Adult Psychiatry and Sleep Medicine. She received her medical degree from Weill Cornell Medical School and PhD in Neurobiology from The Rockefeller University. She completed her Psychiatry residency and Sleep Medicine Fellowship training at the New York University Medical Center. In her psychiatric practice, Dr. O'Malley uses an integrative approach to health, combining evidence-based concepts in neurobiology with psychological, social and spiritual/existential worldviews to understand and treat every patient. Her primary practice is medication management. She also integrates elements of psychotherapy into her work, typically within 30-minute follow-up visits. In addition to medication and psychotherapy, she incorporates wellness tools into visits, such as mindfulness exercises and sleep management strategies. If she believes that additional psychotherapy is needed, she will recommend that you add a therapist to your care team. Dr. O'Malley has extensive experience working with people from many stages of life, with diverse world views and cultural backgrounds. She has always had an inclusive practice and welcomes people who identify as LBGTQIA+. As part of her own life path she became an Interfaith Minister and enjoys including spirituality and the supportive role it can play in healing for her patients. Her primary focus is working with adults with mood and anxiety disorders, trauma symptoms, ADHD, and problems with sleep. She enjoys working with people facing life transitions, especially older adults and women who are struggling with mental health challenges related to pregnancy and post-partum health. Prior to joining Talkiatry, Dr. O'Malley was working at Hartford Healthcare with adults in intensive outpatient programs and at Hackensack Meridian Health outpatient clinics. She was the medical director of the Consultation Liaison Service at Berkshire Medical Center in Pittsfield, Massachusetts, and an assistant professor at UMass Medical School. She has published and presented widely on topics related to Wellness in Psychiatry, Ethics and Sleep Medicine. She is an advocate for finding your voice in medical decision-making and enjoys using sound healing for relaxation and stress management.