David Schwartz, MD

Dr. Mark Varela is a board-certified psychiatrist joining Talkiatry directly out of residency. He focuses primarily on medication management, often accompanied by brief cognitive, motivational, or supportive therapy. He may request that you also meet with a therapist regularly for your benefit. Dr. Varela received his medical degree and general psychiatric residency training both from Texas Tech University Health Sciences Center in West Texas. He treats young adults and adults with a wide variety of mental health concerns, including ADHD, mood disorders, anxiety, OCD, and PTSD.

Dr. Merna Guirguis is a general psychiatrist known for her patient-centered and accessible approach. She blends compassion with evidence-based care, creating a supportive environment where patients feel heard. Her practice integrates psychiatric medication management with psychoeducation, empowering patients to make informed decisions about their treatment.

Dr. Guirguis emphasizes collaboration and transparency. She listens carefully to each patient’s concerns, encourages questions, and works to build a trusting therapeutic relationship. Her style is approachable and adaptable, ensuring patients feel comfortable sharing their experiences and actively participating in their care.

She begins by reviewing each patient’s history, concerns, and goals to craft personalized treatment plans. Dr. Guirguis combines current clinical needs with long-term wellness objectives, adjusting care collaboratively over time. When appropriate, she may recommend additional therapy to complement medication management and optimize outcomes.

Getting to know me...
Dr. David Weber is a highly experienced psychiatrist and medical doctor with dual specialties in psychiatry and primary care medicine. His comprehensive approach integrates both disciplines, allowing him to address mental health concerns with a deep understanding of their medical and psychological aspects.

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Dr. Weber earned his Doctor of Medicine (MD) from Southern Illinois University School of Medicine and pursued advanced training at Walter Reed Army Medical Center, Harvard University, and Georgetown University Medical Center. He is Board-Certified in General Psychiatry and Fellowship-Trained in Forensic Psychiatry and Occupational Medicine, equipping him with the expertise to diagnose and treat a broad spectrum of mental health conditions, considering both medical and psychiatric factors.

What should a new patient know about working with you?
Believing that each patient is more than a diagnosis, Dr. Weber takes a personalized approach, collaborating closely with individuals to develop tailored treatment plans. He views himself as an advisor and facilitator, empowering patients to take charge of their recovery.

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Areas of Focus:
ADHD (Focus & Cognitive Function)
Anxiety & Depression (Mood, Sleep, & Energy Concerns)
Stress & Brain Fog (Cognitive & Emotional Well-Being)

What is your typical process for working with patients?
Dr. Weber is an experienced, compassionate, and dedicated advocate for his patients' mental and physical health. He strongly believes in a collaborative, patient-centered approach to treatment, helping individuals achieve their personal and professional goals.
Committed to a well-balanced life, Dr. Weber is married and has two married daughters, two grandsons and three dogs. His wife, a clinical psychologist, helps ground his therapeutic approach, emphasizing the importance of integrating therapy with medication to enhance overall well-being. Guided by the ethos, "Treat them like you would your own family," he is dedicated to providing compassionate, high-quality care.

Dr. Thy Vo is a board-certified psychiatrist who specializes in the treatment of adults, adolescents, and children. Dr. Vo approaches patients as whole human beings with the goal of providing a safe therapeutic space that will help patients understand and address their suffering as well as fostering healthy emotional expression and self-awareness. Dr. Vo is collaborative with treatment needs, which may include medication and/or supportive or insight-oriented psychotherapy in 30 or 45 minute follow-up visits. She received a Master's in Global Health Systems and Development at Tulane University and then received her medical degree from the University of Wisconsin-Madison School of Medicine. Afterwards, she completed her adult psychiatry residency and child and adolescent psychiatry fellowship training at Western Psychiatric Hospital of University of Pittsburgh Medical Center. During her training, Dr. Vo has treated patients of all ages and diverse backgrounds with particular interest in immigrants and refugees. She works with people dealing with trauma, mood and anxiety disorders, ADHD, relationship conflicts, life transitions, and existential concerns. She has also received additional training in psychodynamic psychotherapy.

Dr. Nicole Martinez received her Master's and Doctorate from the Illinois School of Professional Psychology and completed her pre-doctoral and post-doctoral fellowship at Gateway Foundation in Lake Villa, Illinois. She earned a double major in Psychology and Therapeutic Recreation at the University of St. Francis. Dr. Martinez has extensive experience working with children, adolescents, and adults in individual, family, and group treatment. Her therapeutic approach is integrative, combining Cognitive Behavioral Psychotherapy (CBT) with holistic methods, emphasizing Solution Focused Therapy, Reality Therapy, and Positive Psychology. She believes in the mind-body connection and that exploring various areas of an individual's functioning is essential for optimum physical and emotional health. Dr. Martinez emphasizes a collaborative therapist-client relationship, where both act as partners in designing treatment goals. She values identifying ineffective past modalities to avoid frustration and ensure personalized care. Recognizing that each person is unique, she adapts to the patient's evolving needs, ensuring they feel heard and supported for positive outcomes. Her areas of expertise include health psychology, complex trauma, PTSD, depression, anxiety, social anxiety, bipolar disorder, ADHD, autism spectrum disorders, LGBTQIA populations, bereavement, forensics, substance abuse, couples work, MISA, co-occurring disorders, domestic violence, sex offenders, special needs populations, and chronic medical issues and rare diseases. She is skilled in the evaluation and assessment of these populations.

Dr. Dave Kopacz studied psychology, medicine, and psychiatry at the University of Illinois. He has over 25 years of clinical experience, most recently 11 years at the Seattle Veterans Affairs and as a national VA Whole Health Education Champion, teaching holistic self-care to staff and veterans. Prior to that, Dr. Kopacz was Clinical Director of a psychiatric rehabilitation center in New Zealand. He has worked in private practice, rural community mental health, and ran a VA tele-health program for Native American/Alaskan and Pasifika veterans.

Dr. Kopacz is board certified in Psychiatry & Integrative Medicine, a certified yoga instructor and a certified iRest (Integrative Restoration) meditation teacher. He is an author and international speaker on topics of burnout, well-being, medical humanities, creativity and health, and cross-cultural approaches to healing. His books include Caring for Self & Others: Transforming Burnout, Compassion Fatigue, and Soul Loss, and Re-humanizing Medicine. He has also co-authored four books with Joseph Rael (Beautiful Painted Arrow), including Walking the Medicine Wheel: Healing Trauma & PTSD.

"What is your typical process for working with patients?"

Dr. Kopacz combines psychiatric diagnosis with a collaborative and holistic focus on your strengths and personal growth. Combining a psychiatric and self-care assessment, he will help you find a plan for medication, psychotherapy, and well-being work that feels right for you.

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