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Irene Pastis, MD

Staff Psychiatrist
Languages
English
Greek
SPECIALTIES
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Perinatal Psychiatry
Phobias
Postpartum Depression
Geriatric
Medication Management

Education and training

  • University of Maryland, BS
  • St George's University, MD
  • The Brody School of Medicine at East Carolina University, Residency

Get to know

Irene Pastis, MD

Dr. Irene Pastis is a board-certified psychiatrist who specializes in adult psychiatry.  She completed residency training at East Carolina University in both internal medicine and psychiatry.  After residency, she pursued her passion in psychiatry and stayed on as a clinical assistant professor in the department of psychiatry at East Carolina University.  In this role she specialized in treating adults with mental illness in both the inpatient and outpatient settings.  She has spent a considerable amount of time teaching residents and medical students and has published several papers focusing on the neuroscience pathways of mental health conditions.  In her daily practice, Dr. Pastis focuses on evidence-based treatments utilizing the latest clinical guidelines and current approved treatments.  In addition to medication management, she also incorporates psychotherapy in the treatment of mental health conditions.  Dr. Pastis is passionate about taking a collaborative approach with her patients to help them reach their potential.

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Tamara Lazenby, MD

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Tamara Lazenby, MD is a board-certified psychiatrist with more than 20 years of clinical and academic experience in emergency mental health, disaster response, and trauma-focused care. She earned her undergraduate degree at George Mason University and completed her medical degree at Eastern Virginia Medical School. After the September 11th attacks, Dr. Lazenby trained in psychiatry at New York Medical College’s Saint Vincent’s Hospital, specializing in emergency and trauma psychiatry.

She previously served as Associate Director of Wellness & Emergency Response Services at New York University’s Student Health Center, leading a team that cared for more than 50,000 global NYU students. Dr. Lazenby also previously served as Staff Psychiatrist and Team Lead for the Combat PTSD Clinical Team at the Hampton VA Medical Center, providing care for veterans with service-related trauma and implementing National VA Standards of Care.

Dr. Lazenby believes healing happens when mind, body, and spirit are aligned. She creates a compassionate and collaborative environment where patients feel deeply heard and empowered in their own care. Her approach blends conventional psychiatric treatment with nutrition, mindfulness, movement, and stress-reduction strategies to support long-term mental wellness.  She values authenticity, open communication, and shared decision-making, empowering patients to build resilience and restore balance in their lives.

She begins with a comprehensive assessment exploring medical, psychological, and lifestyle factors that influence mental health. Treatment plans are personalized and may include psychotherapy, targeted laboratory testing, lifestyle modifications, supplements, and medication when appropriate. Dr. Lazenby works closely with patients to restore balance, resilience, and overall well-being through a truly integrative approach. Regular collaboration and feedback, helping patients heal, grow, and thrive.

Lauren McClairen, MD

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Dr. Lauren McClairen is a psychiatrist board certified in General Psychiatry and Addiction Medicine. She completed her medical and psychiatric training at Meharry Medical College in Nashville, TN and a fellowship in Addiction Medicine at Baptist Memorial Hospital in collaboration with IAC (Integrated Addiction Care) in Memphis, TN. Dr. McClairen has clinical experience and practice working with other specialties and disciplines in treatment teams and integrated care models both in the inpatient and outpatient setting. She has held an academic appointment at Baptist Memorial Hospital where she enjoyed teaching and supervising medical residents and fellows in training. She most recently served as the Regional Behavioral Health Medical Director for a group of mental health clinics throughout Tennessee, and as the Chief of Psychiatric Services for a residential treatment facility in Mississippi that also had Partial Hospital and Intensive Outpatient Programming (PHP/IOP). She is experienced in treating patients with a variety of mental health diagnoses including but not limited to depression, bipolar disorder, anxiety disorders, ADHD, OCD, PTSD, and those with a history of substance use disorders. Dr. McClairen works collaboratively with her patients to provide treatments tailored to each patient's individualized needs. She prioritizes building trusting relationships and fostering open communication. Patients can expect a compassionate approach often with utilization of supportive therapy, mindfulness, and at times cognitive behavioral and psychodynamic psychotherapy techniques to address their psychosocial stressors and unique needs.

Amber Blue, MD

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Dr. Amber Blue is a board-certified psychiatrist trained in Adult Psychiatry. She completed her residency at Yale University. She offers medication management in 30-minute follow-up visits informed by her psychotherapy experience. Occasionally, she may believe additional therapy would be beneficial, and therefore, she recommends that you add a therapist to your care team for the best results. She has received specialized training in psychoanalytic psychotherapy at Columbia University and NYU. Over the past three years, Dr. Blue has worked in college student health centers and private practice. She has a wide range of experience in treating various mental illnesses including depression, bipolar disorder, anxiety, and OCD. Her approach is to educate clients on their mental health, available pharmacologic and psychotherapeutic options, and to collaborate with them in formulating an evidence-based treatment plan.

Ernest Smith, LPC

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Ernest Smith, LPC, specializes in supporting adolescents, young adults, adults, and older adults as they navigate grief, anxiety, depression, trauma, and life transitions. With a compassionate and client-centered approach, he creates a safe, nonjudgmental space for individuals to explore their experiences and build the skills necessary for healing, growth, and resilience.

Ernest draws from a range of evidence-based modalities—including solution-focused therapy, person-centered therapy, cognitive-behavioral therapy (CBT), and dialectical behavior therapy (DBT). He tailors each session to meet the unique needs of his clients, whether helping adolescents manage emotional regulation and identity development or supporting older adults in coping with grief and life changes.

Ernest provides trauma-informed care and recovery-focused strategies that foster emotional safety, self-awareness, and long-term well-being. His goal is to walk alongside each person with empathy, understanding, and practical tools that promote lasting change and inner strength.

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Background and credentials

Dr. Kristina Schnitzer is a board-certified psychiatrist. She earned her medical degree from the New York University School of Medicine and completed her residency in Adult Psychiatry at the Massachusetts General Hospital/McLean Adult Psychiatry Residency Program. She further specialized by completing a one-year clinical and research fellowship in Public and Community Psychiatry through Massachusetts General Hospital and the Massachusetts Department of Mental Health. In addition to her medical training, she holds a Master of Public Health (MPH) from the Harvard T.H. Chan School of Public Health. She has over three years of experience practicing psychiatry across inpatient, emergency, and outpatient settings.

Treatment approach

Dr. Schnitzer focuses on medication management as the foundation of her treatment approach, typically combining it with supportive or emotionally focused therapy during 30-minute follow-up visits. She takes a collaborative and individualized approach to patient care and, when needed, may recommend additional therapy by integrating a therapist into the care team to ensure the best possible outcomes. She has experience treating a broad range of psychiatric disorders in various clinical settings.

What you can expect in a first visit

Patients can expect a thorough and structured evaluation in their first visit, where Dr. Schnitzer carefully assesses their symptoms, medical history, and treatment goals. She emphasizes open communication and collaboration, ensuring that patients are fully involved in shaping their treatment plans. Follow-up visits typically last 30 minutes, during which she monitors progress, adjusts treatment as needed, and may recommend additional therapeutic support for comprehensive care.

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.

Lindsey Stewart, PMHNP

Staff Nurse Practitioner

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.

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Specialties
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Perinatal Psychiatry
Phobias
Postpartum Depression
Geriatric
Medication Management
States
New York
North Carolina
Virginia
Illinois
Languages
English
Greek
Takes insurance
Virtual visits
7 years experience