Kristen Soukup, LCSW

Dr. Alejandra Vivas is board-certified in adult psychiatry and board-eligible in child and adolescent psychiatry. She completed her general psychiatry residency at Montefiore Medical Center and a child and adolescent fellowship at Mount Sinai School of Medicine. Dr. Vivas brings extensive experience from outpatient, emergency, and telepsychiatry settings. She has advanced training in CBT, Motivational Interviewing, and Psychodynamic Therapy. Fluent in English and Spanish, she is committed to culturally sensitive, individualized care.

Dr. Vivas fosters a warm, respectful, and professional space where patients feel seen and empowered. She values open communication and builds collaborative relationships to align treatment with each person’s values, goals, and lifestyle. Her approach is integrative and flexible, grounded in evidence-based methods to support lasting, meaningful change.

Dr. Vivas begins with a thorough evaluation to understand each patient’s history and goals. She creates customized treatment plans that may include therapy, medication, or both. Drawing on CBT, Motivational Interviewing, and Psychodynamic Therapy, she adapts care to meet evolving needs, aiming to relieve symptoms, foster resilience, and support long-term well-being.

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Dr. Erica Mark is a board-certified psychiatrist with experience in both inpatient and outpatient care. She formerly served as a Staff Psychiatrist at a VA Medical Center, where she specialized in the mental health needs of veterans. Dr. Mark earned her B.S. in Biological Sciences, Summa Cum Laude, from Hampton University, received her MD from the University of Texas Medical Branch, and completed her psychiatry residency at Tulane University School of Medicine, serving as Chief Resident in 2017.

Dr. Mark fosters a warm, supportive environment where patients feel heard and respected. She values open communication and works collaboratively to set clear, personalized treatment goals. Deeply committed to service, she has supported underserved and marginalized communities through various nonprofit initiatives.

During initial sessions, Dr. Mark takes time to understand each patient’s history, concerns, and goals. She then creates individualized treatment plans aligned with each patient's unique needs and preferences. Dr. Mark encourages ongoing dialogue to adapt care plans and support long-term progress.

Dr. Sheena Dohar is a board certified general psychiatrist. Before joining Talkiatry, she practiced extensively in community mental health with adults of all ages in both outpatient and inpatient settings and as the medical director of several intensive outpatient and dialectical behavioral therapy (DBT) based programs. She has experience in private practice and in the dual diagnoses of mental health and substance abuse disorders. Dr. Dohar graduated from Carnegie Mellon University with a Bachelor of Science in Biology and Psychology and then completed medical school at West Virginia University School of Medicine. She trained during her residency at WVU, where she served as a chief resident and received the Brandon K. Fuller Award for Physician Empathy in 2017. Dr. Dohar's practice focuses on medication management. Her goals include helping people feel comfortable seeking treatment as well as promoting an understanding of the purpose and reasoning behind the use of various medications to treat psychiatric disorders. Typically, she offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. When Dr. Dohar may believe that additional therapy is also needed, she will ask that you bring a therapist into your care team to provide the best outcome. Dr. Dohar appreciates and values working with therapists within the Talkiatry practice and in the community in a collaborative effort to promote wellness. She strives to build strong therapeutic relationships with the people that she sees in her practice. Her passions include working in the community at large to encourage a better understanding of mental health disorders and to promote suicide awareness and prevention. She has interests in pharmacogenomics as well as treatment resistant approaches to depression. Dr. Dohar appears in several professional publications.‍

Dr. Niles (he/him) holds the position of Staff Psychiatrist at Talkiatry. He has four years of experience in outpatient psychiatry and is board-certified for adult psychiatry. He has received training in the use of cognitive behavioral therapy, supportive therapy, motivational interviewing, psychodynamic therapy, and dialectical behavioral therapy skills. He uses his training in therapy in tandem with medicine management to provide holistic, person-centered care. During his undergraduate studies at the University of Pittsburgh, while completing his pre-medical classes, he also pursued certification in the history and philosophy of medicine. Additionally, he studied the effect of culture and ethics on healthcare. He earned a Bachelor of Science in Psychology with a minor in Chemistry. He attended medical school at the West Virginia School of Osteopathic Medicine. His psychiatry residency training was completed at Charleston Area Medical Center. While in residency, he worked to improve cultural awareness in the outpatient setting. Dr. Niles is interested in treating patients with a wide variety of diagnoses. He treats mood disorders, anxiety disorders, trauma-related disorders, personality disorders, OCD, comorbid addiction, mild eating disorders, neurodevelopmental disorders such as autism spectrum disorder, and more. He also strives to provide care that affirms LGBTQIA+ identities and underwent additional training in transgender mental healthcare.

Dr. Zachary Masuda earned his medical degree at Creighton University School of Medicine in Omaha and completed his Psychiatry residency at Creighton University School of Medicine in Phoenix. He went on to complete an Addiction Psychiatry fellowship at Oregon Health and Science University. During training, he was inducted into the Gold Humanism Honor Society, reflecting his commitment to compassionate care. Dr. Masuda is board-certified in general psychiatry and has experience working in outpatient, residential, and inpatient settings.

Dr. Masuda is dedicated to creating a safe, supportive, and nonjudgmental environment where patients feel heard and respected. He emphasizes open communication to establish clear treatment goals and expectations, ensuring patients are active partners in their care. His approach remains flexible, adapting as treatment evolves to best meet patient needs.

Dr. Masuda begins by gaining a thorough understanding of each patient’s history, concerns, and goals during the initial session. He then develops personalized treatment plans that align with those goals, integrating both medication management and therapeutic interventions. His balanced approach allows for individualized care tailored to support long-term recovery and overall well-being.

Scott Tuckman is a Licensed Mental Health Counselor who arrives with a robust set of backgrounds across several fields of interest, with immersion among numerous cultures and diverse ways of life. He has worked in multiple capacities in a variety of settings around the U.S., ranging from correctional to educational to inner-city community-based to corporate. With an eye on what influences the ever-present connections between body and mind and emotional states, Scott works well with those struggling with mood disorders, depression, a range of anxiety disorders, relationship problems, esteem issues, adjustment concerns, emotional dysregulation, and more. While Scott is psychodynamically oriented, he blends attachment theory application, mindfulness, selections from CBT and DBT modalities, or other treatment mechanisms tailored to meet each client's needs and complement any assigned psychopharmacological undertaking. Considering it an honor to join someone on their journey, he takes a direct yet compassionate approach so as to establish a comfortable co-owned therapeutic relationship. Ultimately, he strives to help clients gain a more comprehensive understanding of how they can move themselves forward and collaboratively develop the readiness to step towards it. When goals have been met and it's time to finally part ways, Scott hopes each client's tool belt is fortified with newly acquired techniques to overcome the inevitable obstacles on the road ahead.