Caitlin Gardiner, MD

Cosima Robinson holds a distinguished profile as a Licensed Professional Counselor, a Licensed Chemical Dependency Counselor, and a National Certified Counselor. She earned her Master of Science in Counseling from University of Houston-Clear Lake. Presently, her licensure allows her to provide counseling services within the state of Texas.

Drawing upon her extensive experience, Cosima Robinson adeptly delivers tailored therapeutic interventions catering to individuals of all age groups. She proficiently addresses a spectrum of mental health challenges, including but not limited to depression, anxiety, and various life obstacles. Her therapeutic approach is characterized by an impartial, supportive, and uplifting environment designed to foster healing.

Cosima's professional background encompasses a diverse range of settings. She has proficiently guided individuals in contexts such as dual-diagnosis scenarios, substance abuse recovery, residential and intensive outpatient care facilities, correctional institutions, survivors of domestic violence, and at-risk youth and families.

Her counseling methodology is an incorporation of person-centered, cognitive-behavioral, and solution-focused modalities. Notably, she remains flexible in her application of techniques, ensuring that each intervention is meticulously tailored to suit the distinct requirements of her clients.

Dr. Deringer is a psychiatrist with board certification in general psychiatry and addiction psychiatry. She earned her M.D. from the University of Michigan Medical School, and she completed her psychiatry residency and addiction psychiatry fellowship training at New York University. She has previously held faculty roles at New York University School of Medicine and Harvard Medical School. She has been involved in training the next generation of psychiatrists through her past work on the Program Director team for the MGH-McLean Psychiatry Residency Program. She has expertise in treating adults with mood disorders, anxiety disorders, substance use disorders, personality disorders, trauma, and ADHD.

Dr. Deringer cares deeply about understanding each patient's unique experience.  She recognizes that mental health symptoms are impacted by an individual's biological make-up, social situation, and their individual way of interacting with others in the world.  She will assess all of these factors and work with you to develop an appropriate treatment plan to help you feel better and meet your goals.  She incorporates supportive psychotherapy into all of her patient meetings; this may include discussions of the role of nutrition, exercise, and sleep habits in your overall well-being.

Dr. Deringer will begin the evaluation process with a thorough one-hour session in which we will discuss your current symptoms, your prior treatment history, your medical history, and your goals for treatment.  At the end of that session, she will begin to formulate her diagnostic impression and treatment recommendations.  Sometimes, the evaluation process may require more than one session, and it may be helpful for Dr. Deringer to gather information, with your permission, from prior treatment or to collaborate with your therapist if you have one.  Dr. Deringer will work with you on a medication treatment plan, if clinically indicated, to help you manage your symptoms and achieve your treatment goals.

Monique Randle, LCSW, has been a licensed mental health therapist since 2009. She earned her Master of Social Work from the University of Arkansas at Little Rock and holds a certification in sex therapy from the Sexual Health Alliance. Monique has training in trauma and couples therapy, including EMDR, TFCBT, PACT, Gottman, Prepare/Enrich, and SYMBIS. She has experience in outpatient and private practice settings, as well as supervising MSW interns and LCSW candidates.

Monique creates a warm, supportive, and non-judgmental space for clients to be their whole selves. She values honesty, collaboration, and open communication, blending evidence-based approaches like CBT, ACT, and narrative therapy with relational and mindfulness techniques. Her work is trauma-informed, culturally responsive, sex-positive, and LGBTQIA+ affirming. She helps clients build emotional awareness, set healthy boundaries, and cultivate self-compassion, addressing both the “why” behind patterns and practical tools for change.

Monique begins by exploring each client’s story, history, and goals. Together, they create individualized, evidence-based treatment plans, regularly adjusting as needed. Sessions are collaborative, providing insight, practical tools, and emotional support to apply in real life. Progress is measured not only by symptom reduction but by increased self-awareness, emotional stability, and confidence in navigating challenges.

Nisha Saintelus Deratus, LPC, is a proud HBCU graduate of Prairie View A&M University with a Master’s in Counseling and over eight years of experience in the mental health field. She has provided care in inpatient psychiatric hospitals, partial and intensive outpatient programs, community mental health, and private telehealth practice. Nisha supports clients facing anxiety, depression, trauma, grief, bipolar disorder, life transitions, anger management, and relationship challenges.

Nisha offers a warm, approachable, and nonjudgmental space where clients feel seen and supported. She believes in a collaborative approach to therapy, working alongside clients to identify the root of their struggles and develop a personalized plan for growth and healing. Her personable nature and tailored care help clients feel comfortable and empowered throughout the process.

In the first session, Nisha reviews teletherapy expectations and confidentiality, and conducts a psychosocial assessment to better understand your background and goals. Together, you’ll explore current challenges, create a vision for your future, and build a practical plan. Using CBT and ACT, she helps you develop tools and insights to apply between sessions for continued progress.

Dr. Farias is a board-certified physician in both adult and child & adolescent psychiatry, with a focus on the diagnosis and treatment of depressive disorders, anxiety disorders, trauma- and stressor-related disorders, and ADHD. Dr. Farias graduated magna cum laude with a Bachelor of Science degree from the University of Houston, majoring in Biology with a minor in Chemistry. She then pursued her medical education at Texas Tech University Health Sciences Center, earning her Doctor of Medicine degree. Dr. Farias completed a three-year psychiatric residency at TTUHSC, followed by fellowship training in child and adolescent psychiatry. She completed her first year of fellowship at the University of Texas Medical Branch in Galveston and her second year at TTUHSC. With a diverse clinical background, Dr. Farias has gained experience in a variety of settings, including academic psychiatry, consult liaison psychiatry, intensive outpatient programs (IOP), partial hospitalization programs (PHP), emergency psychiatry, and outpatient psychiatry. This broad range of experience allows her to provide comprehensive, individualized care to patients at all stages of life. Dr. Farias takes a holistic approach to treatment, incorporating both medication management and psychotherapy. She utilizes principles from Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and supportive psychotherapy, recognizing that a combined approach leads to better outcomes for patients.

Dr. Ani Maria Tejada is a double board-certified child, adolescent, and adult psychiatrist who provides holistic, comprehensive outpatient psychiatric care at Talkiatry via telehealth. She is fully bilingual in English and Spanish and works with patients of all ages. Dr. Tejada has a special interest in caring for individuals with developmental disabilities, including Autism and Asperger’s, and treats a wide range of conditions such as ADHD, anxiety disorders, OCD, trauma-related disorders, mood disorders, postpartum depression, personality disorders, and other mental health conditions that affect daily functioning.

Dr. Tejada takes a warm, compassionate, and collaborative approach to care. She deeply respects each patient’s dignity, autonomy, and personal values, and believes informed patients are empowered patients. She provides clear education on treatment options, benefits, and risks based on current national guidelines, creating a judgment-free space where patients feel heard, understood, and supported as active partners in their care.

During the initial visit, Dr. Tejada takes time to understand the patient’s full personal history and current circumstances to better see the world through their perspective. Ongoing visits use measurement-based tools to guide treatment decisions, including medication adjustments when appropriate. She supports patients in building coping skills, reducing negative thought patterns, and developing healthy habits that promote long-term emotional well-being and improved quality of life.