Ann Landowne, MD

Tony Gunn II is a Licensed Independent Clinical Social Worker in Alabama and Licensed Clinical Social Worker in California. He is the Founder and Clinical Director of PULSE Counseling and Consulting, LLC, providing telehealth and in-person services. His background includes outpatient therapy, community mental health, and behavioral health leadership. He is EMDR-informed, a board-certified specialist in transgender-affirming care, a Substance Abuse Professional, and is pursuing a PhD in Clinical Sexology. He works with adolescents, adults, couples, and families using CBT, ACT, trauma-focused, and relapse prevention approaches.

Tony Gunn II provides care grounded in dignity, respect, and cultural humility. He offers a structured, goal-oriented approach balanced with warmth and authenticity. He values direct, honest communication and encourages conversations that may feel uncomfortable but necessary for growth. Sessions focus on measurable progress and meaningful change. He integrates trauma-informed and EMDR-informed principles when appropriate and supports clients navigating trauma, anxiety, depression, identity development, relationship concerns, and life transitions.

Tony Gunn II begins with a comprehensive intake to understand each client’s history, strengths, stressors, and goals. He collaborates to establish clear, measurable objectives and develops an individualized treatment plan aligned with the client’s values. Using evidence-based interventions, he provides practical tools for use between sessions, monitors progress regularly and adjusts care as needed. When appropriate, he coordinates with other providers to promote long-term stability, resilience, and sustainable change.

Dr. Jenna Hartman is double board certified in General Psychiatry and Addiction Psychiatry. Dr. Hartman graduated from Tufts University before completing medical school at New York Institute of Technology College of Osteopathic Medicine. She then completed residency at Maimonides Medical Center, where she was a Chief Resident, and then pursued an addiction psychiatry fellowship at Mount Sinai Beth Israel. Dr. Hartman was also trained in psychodynamic psychotherapy by the Psychoanalytic Association of NY. Following her training, Dr. Hartman returned to Maimonides Medical Center, where she worked as an attending adult outpatient clinic, treating patients from many different backgrounds with a wide array of diagnoses. She holds a special interest in treating mood disorders, anxiety disorders, and OCD. Dr. Hartman uses a compassionate and thoughtful approach in order to form a collaborative partnership with her patients. She believes in treating the person as a whole and tailoring treatments to each individual's specific needs. Dr. Hartman works with patients in 30 30-minute follow up sessions, where in addition to medication management she provides supportive and at times psychodynamic therapeutic techniques.

Dr. Cabrera is a board‐certified psychiatrist with several years of experience working with an ethnically and culturally diverse population in outpatient, inpatient, and psychiatric emergency room settings. Most recently, Dr. Cabrera practiced privately treating adults with a wide range of mental illnesses both in person and via telepsychiatry. Prior to this, she was an attending psychiatrist in the outpatient department and in the Comprehensive Psychiatric Evaluation Center at Mount Sinai Beth Israel where she also served as Associate Training Director of Psychiatric Residency Training. Dr. Cabrera has a strong background in psychopharmacology and supportive and psychodynamic psychotherapy.

Matthew Twomey, PMHNP, earned his BSN and MSN from the Massachusetts General Hospital Institute of Health Professions School of Nursing. He began his career as an adult psychiatric nurse practitioner in community health centers before commissioning as an officer in the U.S. Army Nurse Corps. After five years of active duty, he continued caring for service members and families at Fort Bliss as a civilian provider for nearly six years. He now practices in the private sector, bringing broad clinical experience to diverse patient populations.

Matthew is skilled in psychopharmacology, evidence-based practice, and telehealth delivery. He combines strong clinical expertise with a patient-centered approach to improve outcomes and streamline care. Patients can expect thoughtful collaboration, clear communication, and treatment planning grounded in the latest research and tailored to their individual goals.

He specializes in psychopharmacology and precise medication management tailored to each patient’s unique needs. He also integrates supportive psychotherapy, motivational interviewing, psychoeducation, and cognitive behavioral therapy. Through active listening and mutual respect, he fosters a safe, supportive environment where patients feel heard, engaged, and empowered in their care.

Dr. Stephane Louis, LMFT, QS, earned a B.S. in Psychology and Biblical Studies from Palm Beach Atlantic University, followed by her M.S. and PhD in Marriage and Family Therapy from Nova Southeastern University. In 2020, she was featured in Forbes for her study of resilience and intersecting identities in queer women of Afro-Caribbean descent. Past roles include bilingual mental health assessor, psychology instructor at Broward College, and Student Counselor at Lynn University. As a therapist, Dr. Louis’ work has given her in-depth insight into how multiple systems and important relationships can influence the course of a person’s life.

As a queer woman of Haitian descent, Dr. Louis explores different ways the intersectionality of culture, family, identity, and sexuality can impact our lives. She is fascinated by stories of vulnerability, always looking for strengths and solutions. She helps people feel safe to be themselves and go from where they are to where they can be.

Dr. Louis provides individual, couples, and family therapy, integrating Accelerated Resolution Therapy (ART), Solution-Focused Therapy, collaborative conversations, and systemic approaches to address LGBTQ+ issues, racial trauma, cultural identity exploration, and relational wounds. Dr. Louis will meet you where you are and help you grow into the most authentic version of yourself.

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Background and credentials

Dr. Matthew Koller is a board-certified adult psychiatrist who completed his undergraduate training at The University of Texas at Austin. He earned his medical degree from The University of Texas Health Science Center at San Antonio and completed his general adult psychiatry residency at Baylor College of Medicine in Houston, TX, where he served as Chief Resident of Education in his final year of training.

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Treatment approach

Dr. Koller believes that understanding a patient fully is essential before treatment begins, emphasizing a collaborative and patient-centered approach to care. His practice is primarily focused on medication management, but he also incorporates supportive therapy and other therapeutic modalities as needed. He may recommend including a therapist in the treatment plan to ensure comprehensive, well-rounded care. He has experience treating a wide range of mental health conditions, including depression, anxiety, insomnia, personality disorders, bipolar disorder, PTSD, and psychotic disorders.

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What you can expect in a first visit

During the first visit, patients can expect a thorough and individualized psychiatric evaluation, where Dr. Koller takes the time to understand their symptoms, history, and treatment goals. He prioritizes open communication and shared decision-making, working closely with patients to develop personalized treatment plans. While medication management is the foundation of his approach, he remains flexible and adaptive, incorporating therapy and other interventions as needed to help patients achieve optimal mental health.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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