Megan Marumoto, MD

Background and credentials

Dr. Yang is board-certified in both General Psychiatry and Addiction Psychiatry. She received her medical degree from the Medical School of Nanjing University in China and completed her Ph.D. in Neuroscience at the State University of New York in Buffalo. She conducted neuroscience research at Tufts University and Columbia University. Dr. Yang completed her residency in Psychiatry at the University of Texas Health Science Center at Houston – McGovern Medical School (UTHealth) and a fellowship in Addiction Psychiatry at Baylor College of Medicine. She has held academic positions at Baylor College of Medicine, supervising medical students, residents, and physician assistant students.

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Treatment approach

Dr. Yang specializes in treating depressive disorders, bipolar disorders, anxiety, substance use disorders, ADHD, and trauma-related disorders. She employs medication management combined with supportive therapy and motivational interviewing techniques. Dr. Yang emphasizes building strong therapeutic relationships, tailoring treatment to each patient's unique goals and needs.

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What you can expect in a first visit

In the initial visit, patients can expect a detailed, personalized evaluation by Dr. Yang. She will explore symptoms, medical history, personal goals, and treatment preferences to design an individualized care plan. Patients can expect a compassionate, collaborative approach with clear communication about medication management options and supportive therapeutic strategies aimed at improving their overall well-being.

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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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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.

Severine Dondina, PMHNP-BC, is a board-certified psychiatric nurse practitioner with licensure in Washington and Florida. She holds a Master of Science in Nursing from the University of Alabama at Birmingham and graduated summa cum laude with dual bachelor’s degrees in nursing and biomedical science. Her background spans outpatient, community, forensic, and crisis psychiatry, including leadership roles with Florida’s Assertive Community Treatment (FACT) and Multi-Disciplinary Forensic Teams.

Currently serving patients in Washington, Severine treats adults with ADHD, anxiety, depression, PTSD, and bipolar disorder. She brings a trauma-informed, strengths-based approach to care and is deeply committed to creating affirming spaces for LGBTQ+ and gender-diverse individuals. Her clinical style combines evidence-based medication management with warm, collaborative support.

Trilingual in English, French, and Spanish, Severine is known for her cultural sensitivity, clinical rigor, and authentic presence. She approaches each patient with curiosity, humility, and respect—believing healing begins with connection.

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Background and credentials    

Dr. Catherine Cashman is triple board-certified by the American Board of  Psychiatry and Neurology in Adult Psychiatry, Child & Adolescent  Psychiatry, and Forensic Psychiatry. She holds two Bachelor’s degrees: one in  Finance from New York University, and another in Biology from the University  of New Orleans. She earned her medical degree from Nova Southeastern  University and completed an Adult Psychiatry residency at LSU Health Sciences  Center in New Orleans. Dr. Cashman subsequently completed two fellowships:  the first in Child & Adolescent Psychiatry at LSU New Orleans, along with  a certification in Infant Mental Health (working with children ages 0–6 years  and their caregivers); the second fellowship was in Forensic Psychiatry at  the University of Rochester and the Rochester Regional Forensic Unit.    

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Treatment approach    

Dr. Cashman brings an extensive and specialized skillset to psychiatry,  informed by her triple board-certifications. Her treatment approach  integrates clinical expertise from adult, child and adolescent, and forensic  psychiatry, emphasizing accurate diagnosis, risk assessment, and  evidence-based care. With specialized expertise in forensic psychiatry and  competency assessments, she employs rigorous evaluation methods to accurately  inform treatment planning and risk management, particularly in complex or  legally-involved cases.    

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What you can expect in a first visit    

Patients visiting Dr. Cashman for the first time can expect a detailed and  comprehensive psychiatric evaluation. Given her forensic and clinical  experience, initial assessments are thorough, focusing on clear diagnostic  understanding, individualized risk assessment, and appropriate treatment  planning. Patients can anticipate a collaborative, professional, and  structured environment aimed at clarifying diagnoses and addressing their  unique mental health needs effectively.    

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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.

Jannise McKamey-Bruell began her career working in the field of education after she completed both a Bachelor of Liberal Arts and a Master of Liberal Arts at the University of Tennessee, Knoxville with an emphasis on Psychology, Women's Studies, and Child and Family Studies. After relocating to Georgia, Ms. McKamey-Bruell attended Argosy University where she completed an additional Master of Arts Degree, with honors, in Community Counseling in addition to receiving a Marriage and Family Therapy Certification. Ms. McKamey-Bruell is a National Certified Counselor (NCC), a Distance Certified Counselor (DCC), a Board Certified Tele-Mental Health Provider (BC-TMH), and holds a Crisis Worker Certification from the American Association of Suicidology. Ms. McKamey-Bruell is also a Court Appointed Special Advocate (CASA) for Cobb County Juvenile Court. Prior to private practice, her clinical experience included working as a therapist at the YWCA, providing domestic violence and sexual assault counseling, facilitating domestic violence support and therapy groups, working with children and families at several community mental health agencies, and working at a mental health crisis line. In addition to her private practice, Ms. McKamey-Bruell also provides online therapy to clients through a secure website and texting platform. Ms. McKamey-Bruell believes in helping others to help themselves. She provides therapy to individuals with an emphasis on crisis intervention, skill-building, self-esteem, attachment issues, relationship problems, and communication repair. She creates a close, supportive relationship in the counseling setting to assist each person in moving forward through open discussion, developing personal insight, and offering workable suggestions. Her specialties include working with those who are experiencing anxiety or depression. When not working, Ms. McKamey-Bruell regularly participates in professional training, enjoys volunteering and participating in community and sorority events, collecting Disney paraphernalia, traveling, sewing, attending sci-fi conventions, and spoiling her nieces and nephews.

Anne Tormos, LCPC, LPC-MHSP, believes that every person has the ability to live a happy, healthy, engaging life, but at times individuals need an objective observer to help uncover what that life looks like. She treats clients ages 15 and up struggling with a variety of challenges, including mood disorders, anxiety, and life transitions. Anne is a National Board-Certified Counselor. She is a Licensed Clinical Professional Counselor in the State of Illinois and a Licensed Professional Counselor � MHSP in the State of Tennessee. Anne earned a BA in Psychology from North Central College and an MS in Clinical Psychology from Benedictine University. Her experience includes working at an inpatient psychiatric hospital and outpatient group practice, which allowed her to utilize different types of care with people from all backgrounds with many different life stressors. She also has experience working within PHP and IOP settings. Anne is trained to utilize many therapeutic techniques, including CBT and DBT.‍Anne is prepared to join you on your journey to self-fulfillment. She believes that everyone has their own story to tell, and her approach is client-centered, strength-based, and solution focused. She cherishes all client relationships and devotes her time and energy to the healing process.