Briana Mathews, MD

Dr. Peter Hsieh has experience practicing in both outpatient and inpatient psychiatric settings. He earned his medical degree from the Zucker School of Medicine at Hofstra/Northwell and completed his psychiatry residency at Zucker SOM at Mather Hospital.

Dr. Hsieh values patient education and shared decision-making. He fosters a nonjudgmental environment where patients feel heard and supported, working collaboratively to develop a treatment plan that fits their goals and needs.

Dr. Hsieh begins with a comprehensive psychiatric evaluation and partners with each patient to create an individualized treatment plan that aligns with their values and evidence-based care. His approach often combines medication management with psychotherapeutic modalities.

Melissa Racklin is a licensed clinical social worker with over 20 years of experience. She works with individuals who have a wide variety of mental health challenges. Melissa helps individuals to work through symptoms that are holding them back and help them live a better, more fulfilling life.‍Melissa is experienced in the areas of panic disorders, generalized anxiety, OCD, phobias, separation anxiety. She particularly enjoys working with adults who are motivated to grow through the process of therapy. Melissa has worked extensively with clients who have depression, bipolar disorder, women's issues, ADHD, personality disorders, marital/relationship issues along with couples counseling, divorce, self-harm, adjustment disorders, and more. Melissa holds certification in clinical supervision as well as school social worker certification. And has training in red flags for suicidality.‍Melissa's approach is custom-tailored for each individual client. She has a supportive, genuine, and authentic style of treatment. Melissa is warm and empathic and strives to create a safe and trusting therapeutic environment for her clients. She utilizes active listening skills and is intuitive and skilled in various modalities of treatment. Most often, Melissa uses CBT, DBT, and a psychodynamic approach in her work with clients.

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.

Dr. Thomas Simeone is Board Certified by the American Board of Psychiatry and Neurology in Psychiatry.  Following his completion of medical school at Universidad Autonoma de Guadalajara, he completed his Fifth Pathway Clinical Training at New York Medical College.  He then completed his Psychiatry Residency at Tuft's University in Boston, MA, and went on to complete a Child and Adolescent Fellowship Program at the University of Florida in Gainesville FL.  He has since worked in both hospital inpatient and outpatient settings, as well as in Residential Treatment for adolescents. Dr. Simeone has treated a wide spectrum of mental health conditions including Anxiety and Depression Disorders, as well as Mood Disorders and Post Traumatic Stress Disorder. He has also treated ADHD, OCD and Eating Disorders in adults and adolescents. Dr. Simeone has worked in Telehealth Practice for the past 4 years. He is a Fellow of the American Psychiatric Association (APA) and a member of the American Medical Association (AMA).

Dr. Simeone utilizes medication management and psychotherapy practices to achieve treatment goals for his patients.  During an initial assessment and evaluation, a thorough review of the patient's previous mental health treatment is considered.  Dr. Simeone assesses patients' acute symptoms including recent stressors and exacerbating factors and then establishes a comprehensive treatment plan with the patients' goals in mind.  Psychotherapy with medication is incorporated into the treatment plan of all patients.  Dr. Simeone always aims to achieve full remission of symptoms for his patients.

Dr. Simeone's practice focuses on medication management with facets of various psychotherapeutic techniques.  He conducts 30 medication management follow up sessions. Dr. Simeone is a sincere and empathic physician who advocates for patient autonomy and believes in a direct and transparent approach to patient treatment. He encourages active patient participation in their treatment plans.

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Zaccaheaus (Zacc) Adams is a licensed clinical counselor in both Maryland and North Carolina. Zacc graduated from the University of North Carolina at Pembroke with his master's in clinical mental health counseling. He has been effective in providing therapy for many presenting concerns such as depression, anxiety, self-esteem/confidence, trauma, career conflicts, and relationship issues. Zacc has extensive experience working with adolescents, adults, couples, friends, and families. He aims to create a warm and inviting environment that will allow clients to further develop growth and empowerment within themselves. Zacc uses an integrative therapeutic approach to meet each client where they are in each session.

Valene, pronounced (Val-leen), is a Licensed Mental Health Counselor who has worked in the mental health field for 7 years. During this time, she has worked with clients from various backgrounds and cultures with a variety of mental health conditions. Valene's experience ranges from an inpatient psychiatric facility to private practice to telehealth. Valene attended the University of South Florida for her undergraduate degree in Psychology and Florida International University for her graduate degree in Mental Health Counseling.‍Valene believes each therapeutic interaction should be individualized and client-centered, thus she uses an eclectic therapy approach. An eclectic approach means assisting clients by drawing from various therapeutic approaches and techniques, thus tailoring treatment to each client's needs. Valene considers the therapeutic relationship to be extremely important and strives to be a collaborative, empathetic, non-judgmental, person-centered therapist. Valene's professional interests include working with young adults, Caribbean Americans, and the BIPOC community. Within mental health she enjoys working with anxiety, depression, women's issues, adjustment disorders, and relationship issues, just to name a few.