Ruben Mendez, MD

Dr. Mennella is a board-certified adult psychiatrist. Her practice focuses on medication management and supportive therapy. Treatment emphasizes patient education and autonomy. Dr. Mennella is a proponent of shared decision-making and believes this facilitates a strong therapeutic relationship, greater satisfaction with care, and improved clinical outcomes. She completed an undergraduate degree in Information Technology from Purdue University and a master's degree in information systems from DePaul University. She received her medical degree from the University of Toledo College of Medicine and then completed her psychiatry residency at Loyola University Medical Center. Areas of interest include depression, bipolar, anxiety, and PTSD.

Dr. Mott grew up in southeastern Idaho. She earned a Ph.D. in Molecular Biology from the University of California at Berkeley in 2009, and her Doctor of Medicine (MD) degree in 2014 from the University of Chicago. She completed her psychiatry residency at the University of Utah in 2018 and became board certified in Psychiatry by the American Board of Psychiatry and Neurology in 2019. Following her residency, she worked as an inpatient psychiatrist at the Huntsman Mental Health Institute in Salt Lake City, Utah and served as an assistant clinical professor in the Department of Psychiatry at the University of Utah. In 2021 she moved to Dallas, Texas to work in a residential and partial hospitalization treatment center for eating disorders. She loves to incorporate psychotherapeutic techniques and goal setting together with medication management to help patients achieve wellness and fulfillment in their lives.

Dr. Mott enjoys treating a wide variety of psychiatric conditions, including depression, anxiety, OCD, bipolar disorder, PTSD, eating disorders and substance use disorders. She believes strongly in individualized treatment that focuses on holistic, compassionate and collaborative care with patients.

She loves to incorporate psychotherapeutic techniques and goal setting together with medication management to help patients achieve wellness and fulfillment in their lives.

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Dr. Karla Garcia is a board-certified psychiatrist trained in Adult Psychiatry. She graduated from the University of Notre Dame with a Bachelor of Science and a Master of Education. She then went on to complete her medical education and residency training at the University of Chicago. She is board certified in Adult Psychiatry by the American Board of Psychiatry and Neurology.

Dr. Garcia believes in patient-centered care, seeking to care for the whole person.  She values the therapeutic relationship, working to guide patients in their treatment while also encouraging patients to take an active role in their care. Dr. Garcia cares about getting to know you as a person and helping you reconnect with your values. Her clinical approach is holistic, collaborative, and supportive.

Dr. Garcia focuses on evidence-based treatments for psychiatric illness that utilize a combination of medications and psychotherapy. Using a range of skills and interventions, Dr. Garcia believes in a multi-faceted approach to treatment.

Dr. Garcia has experience working in a wide variety of inpatient, emergency, partial hospitalization, intensive outpatient, and outpatient psychiatric settings and in treating a broad spectrum of psychiatric disorders including depression, anxiety, bipolar disorder, trauma, substance use disorders, personality disorders, ADHD, and OCD. She treats patients in English and Spanish.

Dr. Kira Posteraro is double board-certified in Adult and Addiction Psychiatry and has over 10 years of clinical experience. She completed her General Adult Psychiatry Residency at Allegheny General Hospital in Pittsburgh, PA, followed by a fellowship in Addiction Psychiatry at Beth Israel Medical Center in New York, NY.

Dr. Posteraro’s career has included serving as Director of Psychiatric Services at an addiction treatment center in Pittsburgh, PA, where she provided care across the full continuum of substance use disorder treatment—including residential, acute PHP, IOP, outpatient, and aftercare services. She later held the role of Section Chief Psychiatrist for the Center for Treatment of Addictive Disorders at VA Pittsburgh Healthcare System, offering both residential and outpatient services and acting as Medical Director for the SAMHSA-certified Opioid Treatment Program. Most recently, she served as Chief of Psychiatry for the Behavioral Health Service Line at VA Pittsburgh, where she had the honor of caring for our nation’s Veterans.

While her clinical expertise centers on the diagnosis and treatment of substance use disorders, Dr. Posteraro also has extensive experience treating a wide range of psychiatric conditions, including depressive and bipolar spectrum disorders, anxiety disorders, and trauma-related disorders.

Dr. Posteraro uses a collaborative, supportive approach to care, incorporating motivational interviewing to help guide patients on their journey to wellness. She integrates holistic strategies alongside medication management and is dedicated to meeting patients where they are in treatment to build individualized, effective recovery plans.

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Steven Warren, PMHNP, has over 25 years of psychiatric nursing experience in both inpatient and outpatient settings. He has provided extensive individual and group psychotherapy and education, and since 2017, has offered medication management and brief therapy in a collaborative community mental health setting. Steven earned his Bachelor of Nursing in 2011 and Master of Nursing in 2017 from Indiana University, and is ANCC board-certified as a Psychiatric Mental Health Nurse Practitioner.

Steven values open and honest communication, working directly with patients to set clear, achievable treatment goals. He is dedicated to ensuring each person he works with feels heard, respected, and supported throughout their mental health journey. His approach emphasizes collaboration, empathy, and trust.

During the first session, Steven takes time to understand each patient’s history, concerns, and goals. He develops individualized treatment plans that reflect patient values, adapting them as needs evolve. Through a strong therapeutic relationship, he provides guidance and support to help patients achieve meaningful and lasting progress.

Lindsey Stewart, PMHNP, holds three Bachelor’s degrees in Biology, Medical Technology, and Nursing, as well as a Master of Science in Nursing. She began her nursing career in 2011, working in inpatient psychiatry, and later expanded her experience to community mental health and home health for patients with behavioral health needs. In 2018, she earned her PMHNP certification from the University of Missouri–Kansas City and has since spent six years providing behavioral health medication management at an FQHC, treating patients across the lifespan.

Lindsey is passionate about her work and values each patient’s unique life story. She focuses on meeting patients where they are and creating customized treatment plans that align with their goals. Her care is rooted in a patient-centered approach, ensuring collaboration and respect throughout the treatment process.

Lindsey’s process blends structure with flexibility, tailoring care to each patient’s needs. She begins by establishing a diagnosis and treatment plan, integrating medication management, therapy, collaborative goal-setting, and ongoing progress monitoring. This holistic approach supports both mental health and overall well-being.