Skip to main content

Matthew Koller, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Phobias
Postpartum Depression
Geriatric

Education and training

•  University of Texas at Austin, BS

•  University of Texas, San Antonio, MD

•  Baylor College of Medicine, Residency

Get to know

Matthew Koller, MD

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.

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.

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.

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.

Get matched with a clinician like this one

Ready to book your first appointment? Take our 10-minute assessment. We’ll match you with a clinician who meets your needs, has availability, and takes your insurance.

Get started
More Clinicians

Tobias Murphy, MD

Staff Psychiatrist

Dr. Tobias Murphy is a psychiatrist with Talkiatry who is licensed to provide care in the states of Ohio, West Virginia, and New York. He completed medical school and psychiatry residency at Marshall University's School of Medicine. He has additional training in neuropsychiatry and geriatric psychiatry. During his training, Dr. Murphy was actively involved in teaching medical students and residents. His most frequent lectures included LGBT and transgender mental health. He is a member of the American Psychiatric Association, the American Association of Gay and Lesbian Psychiatrists, the Gay and Lesbian Medical Association, the World Professional Association for Transgender Health. He was inducted into the Gold Humanism Honor Society and given awards for Inclusion and Advocacy as well as Honors in Community Service during training. He has published papers, presented at conferences, and served as an ad-hoc reviewer for medical journals. Dr. Murphy approaches medication management through the lens of compassionate listening and psychotherapy, seeking to reduce the stigma of mental illness and put patients at ease during their visits. He has experience treating a variety of conditions, including bipolar disorder, depression, OCD, PTSD, ADHD, and anxiety. He enjoys working with a diverse population of patients providing culturally informed care. Follow-up patient visits will include both supportive therapy and medication management during 30-minute encounters.

Anastasia Ruiz, MD

Staff Psychiatrist

Dr. Ruiz is a compassionate psychiatrist specializing in adult and maternal mental health. She develops personalized treatment plans to address anxiety, depression, bipolar disorder, ADHD, OCD, PTSD, PMDD, and perinatal conditions. Her goal is to help patients reconnect with their values and live balanced, fulfilled, and meaningful lives.

Her passion for medicine began in childhood, inspired by curiosity about the mind and body. She earned an Honors Chemistry degree with  magna cum laude and completed her medical training and psychiatry residency at Texas Tech University Health Sciences Center. With a strong scientific foundation, Dr. Ruiz understands the role of medications, and embraces holistic healing through connection, gratitude, and spirituality.

Dr. Ruiz has experience in diverse clinical settings and has received national awards including the AWP International Fellowship and ADMSEP Innovations Award. She is dedicated to advancing maternal mental health screening and treatment through clinical care and education.

Dr. Ruiz combines pharmacotherapy (medication) with psychotherapy to create individualized treatment plans. Therapy provides powerful tools to manage thoughts, emotions, and behaviors that support balanced brain chemistry. Research shows that medication helps restore this balance more quickly and effectively, especially in moderate to severe cases.  

Dr. Ruiz likens medication for the brain to fertilizer for a garden. Imagine your mental health as a vibrant garden—when well-nourished, it can thrive with resilience, beauty, and balance. But when symptoms like depression, anxiety, ADHD, or mood instability take hold, they act like invasive weeds, crowding out healthy growth and making it hard to enjoy the space. Medication acts like fertilizer, strengthening the garden’s natural systems so the healthy parts can reclaim their place and flourish. Just as some gardens need only seasonal care while others require more consistent tending, medication plans are personalized to support each person’s long-term mental wellness. When the garden is healthy, there's more room to grow, connect, and fully enjoy life.

With a strong background in chemistry and pharmacology, Dr. Ruiz prioritizes educating her patients about how medications work and why they can be helpful. She believes patients should take an active role in understanding their diagnosis and treatment. Her approach emphasizes diagnostic clarity, medication management, patient education, and brief psychotherapy based on cognitive behavioral therapy (CBT) and acceptance and commitment therapy (ACT).

Your first appointment is a supportive, in-depth conversation to share your story, challenges, and goals. Dr. Ruiz will review your medical and psychiatric history and assess symptoms using a whole-person approach that considers biological, psychological, and social factors.

Together, you’ll develop a personalized plan that may include lab work, medication, and therapy. Initial visits last 60 minutes for thorough evaluation; follow-ups typically last 20–30 minutes, focusing on medication management and brief therapy. If needed, Dr. Ruiz can refer you to in-house or community therapists for add-on therapy support.  

Throughout your care, Dr. Ruiz prioritizes shared decision making to ensure you feel informed, empowered, and supported.

Laura Long, MD

Staff Psychiatrist

Dr. Long is a board-certified psychiatrist with over 14 years of experience treating adult and older adult patients from a wide variety of cultural and socioeconomic backgrounds. Dr. Long's practice focuses primarily on medication management, in addition to supportive and cognitive and behavioral therapy in 30-minute follow-up visits. Sometimes, Dr. Long will suggest that additional therapy be included in your treatment plan in order to provide the best outcome. Dr. Long received her medical degree from the University of Illinois and completed her residency at Northwestern Memorial Hospital in Chicago. She has worked in emergency psychiatry, community psychiatry and private practice and operated her own independent practice in downtown Chicago. Most recently she has spent over 9 years working with veterans with PTSD and other mental health issues. Dr. Long received her B.A. from Yale University, graduating cum laude with a double major in Biology and Literature. She enjoys working with a wide variety of patients of different ages and from different cultural backgrounds and has extensive experience treating mood disorders, anxiety disorders, and PTSD along with comorbid substance use disorders. Dr. Long views patients as partners working toward a common goal of improving patients' quality of life. She also appreciates the strong connection between physical and mental health and provides encouragement and support to patients to make behavioral changes that will benefit both.

Shaneika Lindsay, PMHNP

Staff Psychiatric Nurse Practitioner

Shaneika Lindsay, PMHNP, is a board-certified psychiatric nurse practitioner dedicated to providing personalized and empathetic care to those in need of mental health care. Her academic journey began with a B.S. in Biology from the University at Albany. She later received her B.S. in Nursing from Pace University and attained her Psychiatric Mental Health Nurse Practitioner M.S. from Hunter-Bellevue School of Nursing, graduating magna cum laude. Shaneika's practice focuses on medication management. Occasionally, Shaneika may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. For the last seven years, Shaneika has diligently provided care to our nation's veterans, working on a dual diagnosis inpatient psychiatric unit in the VA New York Harbor Healthcare System. In her time at the VA, she has gained extensive experience in managing substance abuse and co-morbid psychiatric disorders. In addition, while attending Hunter College, she completed a yearlong clinical rotation at Casa Promesa, a mental health outpatient and inpatient facility that services some of the most vulnerable and underserved populations in the South Bronx. As a Nurse Practitioner, her primary focus is holistic care, taking into consideration all physical, psychological, interpersonal, and environmental factors when creating unique treatment plans. She strongly believes that all of these factors are interconnected and play a significant role in any individual's mental health and vitality. Shaneika's goal is to work with clients to create a safe, non-judgmental, and collaborative treatment environment that promotes sustained healing and positive self-development.

Alicia Lakin, LPC

Staff Licensed Professional Counselor

Alicia Lakin has been counseling for over 20 years. She possesses an LPC-MHSP license. Alicia earned her Bachelor's degree in Psychology at the University of Tennessee. She then went on to earn her Master's Degree, with a focus on Guidance and Counseling, at Lincoln Memorial University. Alicia has been trained in Trauma Focused � Cognitive Behavioral Therapy (TF-CBT) and Motivational Interviewing. Alicia's professional career has provided her with the opportunity to work with individuals in a variety of settings. She has provided treatment in residential care programs for children and adolescents, in the family home, community-based mental health center, and substance abuse treatment outpatient services. In these settings, Alicia has been afforded the opportunity to treat all ages, dealing with a wide range of issues including trauma, substance abuse and recovery, and mood disorders such as anxiety, depression and post-traumatic stress disorder (PTSD). Therapeutically, Alicia describes her approach as "person-centered”, strength-based, and collaborative. She believes in providing a safe space for individuals to be able to express themselves openly, as well as explore any changes they desire to make in their lives. She believes in building a trusting relationship so that she and the individual can work together to help create change. Her style is reality-based, and she views herself as having many roles as a therapist, including that of a support, teacher, advocate, facilitator, and listener in the treatment relationship.

Fang Yang, MD

Staff Psychiatrist

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.

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.

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.

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.

Ready to get matched?

Start our short assessment
Specialties
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Phobias
Postpartum Depression
Geriatric
States
Texas
Utah
Languages
English
Takes insurance
Virtual visits
1 years experience