Ruben Mendez, MD

Dr. Zac Myslinski is a staff psychiatrist who provides thoughtful, evidence-based care for adults facing a wide range of difficulties. He is committed to creating a welcoming, collaborative space where patients from all backgrounds, including but not limited to the LGBTQ+ community, feel heard and supported.

He earned his undergraduate degree in chemistry from Dartmouth College and his medical degree from Weill Cornell Medicine, where he received the Richard Kohl Prize for Excellence in Psychiatry. He completed his psychiatry residency at Harvard-Beth Israel Deaconess Medical Center, where he served as chief resident of the Consult-Liaison/Emergency Department Psychiatry service. He has also conducted research on Alzheimer’s disease and health system economics.

New patients can expect a personalized approach that includes discussion of both medication and therapy. Dr. Myslinski values understanding your treatment preferences and aims to serve as a consultant and collaborator in identifying the best path forward. He believes that developing a shared understanding of your background and current difficulties is essential to effective treatment.

Dr. Myslinski is well-trained in using a wide range of medications and interventions alongside talk therapy, especially cognitive behavioral therapy (CBT) and acceptance and commitment therapy (ACT). His approach emphasizes flexibility, autonomy, and curiosity, with a focus on symptom relief and deeper self-understanding.

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Dr. Harmeeta Singh was born and raised in St. Louis, MO and is board certified with ABPN (American Board of Psychiatry & Neurology). Dr. Singh has been in practice for 15 years and focuses on an individualized treatment plan, not only using pharmacotherapy when needed, but also implementing insight-oriented, supportive, motivational, and brief psychotherapy. Dr. Singh is a firm believer in combining psychotherapy with medication management when warranted to manage and treat a wide variety of mental health conditions including, but not limited to - Depressive Disorders, Bipolar Disorders, Psychotic Disorders, Anxiety Disorders, Trauma related disorders, Substance use disorders, Personality disorders, Sleep Disorders and Eating Disorders. Her dynamic approach is client focused, involving the client throughout their treatment and care plan, taking careful consideration to the individual's needs and goals. ‍Upon completion of her residency through St. Louis University, St.Louis, Dr. Singh joined her parents' Internal Medicine practice. She learned firsthand that implementing mental health awareness, screening, and education into a primary medically focused practice led to more favorable outcomes. Many mental health conditions can manifest as and/or exacerbate a variety of medical/physical conditions and thereby go undiagnosed and untreated. Dr. Singh has worked closely and coordinated care within the medical field and with other specialists in treating and diagnosing comorbid mental health conditions. While in private practice for over 10 years, she was also an attending and consultant for inpatient mental health care and provided mental health services for residents in various residential care facilities, group homes, and skilled nursing facilities. Over the past 5 years she has consolidated her practice and presently is employed with Compass Health Network in Missouri helping bridge the gap in mental health care by coordinating and providing care to the underserved community.

Cassandra Lozano, LPC, LCDC is located in Texas. She graduated with her bachelor's degree in psychology from the University of Texas-Brownsville. Following obtaining her master's degree in counseling and guidance from the University of Texas Rio Grande Valley. She has 10 years of experience in the addictions field and 7 years in mental health, working with her local mental health authority for the past 8 years. She has dedicated her career to specializing in addictive disorders, ADHD, individuals struggling with mood disorders such as depression, anxiety, self-esteem issues, and life transitions. Cassandra works with both adults and adolescents and is a strong ally of the LGBTQ community and Latinx communities. Her therapeutic approach is eclectic in nature, and client-centered. She collaborates with her clients, meeting them where they are and helping them find personalized solutions to achieve their goals and become their best selves. She utilizes a combination of Motivational Interview approaches, CBT, Solution-Focused counseling, and DBT. She ensures that clients are fully aware of their treatment goals and will work collaboratively to facilitate meeting their needs, finding meaning in life, and finding solutions to their current issues. In her personal life, Cassandra is the proud mother of two boys and enjoys tending to their Kuk Sool Won (martial arts) events. She loves relaxing on the beach and is very family oriented. She enjoys fishing, hunting, and off-roading in her jeep.

With over two decades in the counseling field, Greta Hicks-Brooks, LPC, is a seasoned and devoted professional at Talkiatry. Earned her most recent licensure credential, and the one recognized in California is Licensed Professional Clinical Counselor (LPCC). Her background includes roles as a Special Education Teacher, Psychology Instructor, Executive Director, Lead Therapist at an outpatient drug treatment facility, Vocational Rehabilitation Counselor, and Disability Services Counselor.

Greta holds a BA in Psychology from Tuskegee University, an MS in Counseling & Human Development from Troy University, and an MEd in Rehabilitation Counseling from Auburn University. She is licensed in Texas, Colorado, California, and Arizona, and is also a Certified Rehabilitation Counselor (CRC).

Highly structured yet comical, Greta creates a nonjudgmental environment where patients feel comfortable being themselves. Each month, she helps patients set three short-term goals, reflect on accomplishments, and note things they are grateful for—supporting growth, self-awareness, and emotional balance.

During the first session, Greta discusses the reasons for seeking therapy, preferred treatment approaches, and session frequency. She provides homework and clear follow-up focus points, drawing from Client-Centered, Cognitive Behavioral, Dialectical Behavior, Motivational Interviewing, Solution-Focused, and Trauma-Focused therapies. Greta meets clients where they are, fully committed to guiding those ready to make meaningful, lasting change.

Dr. Osamudiamen Osa-Edoh is board-certified in general adult psychiatry. He earned his medical degree from the University of Benin in Nigeria and completed his psychiatry residency at Meharry Medical College in Nashville, Tennessee, where he served as Chief Resident and received multiple honors. He previously served as Medical Director at Sumner Regional Hospital and Assistant Professor at Meharry Medical College.

As a psychiatrist, Dr. Osa-Edoh diagnoses and treats mental illnesses through medication management and psychotherapy. He believes in a kind, compassionate, and evidence-based approach that prioritizes patient needs and fosters a supportive, healing environment.

Dr. Osa-Edoh creates a welcoming, collaborative space where patients feel heard and supported. He takes time to listen, building trust and a strong therapeutic relationship. His goal is to partner with each patient to support their mental health and help them reach their personal wellness goals.

Dr. Santos is a psychiatrist with more than 4 years of experience practicing in a variety of settings with an emphasis on psychiatric outpatient care. She is experienced in treating several psychiatric disorders including but not limited to: Bipolar and Related Disorders, Depressive Disorders, Anxiety Disorders, Trauma and Stressor Related Disorders, Obsessive-Compulsive and Related Disorders, and Substance Related and Addictive Disorders. Dr. Santos received her medical degree from the University of Queensland in Brisbane, Australia / Ochsner Clinical School in New Orleans, Louisiana. She completed her residency training at Louisiana State University in Shreveport, Louisiana. Dr. Santos tailors her approach to the individual patient. She focuses on medication management and incorporates several therapeutic techniques including supportive therapy, cognitive behavioral therapy, acceptance therapy and mindfulness.