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Kristina Schnitzer, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Postpartum Depression
Geriatric

Education and training

  • University of Notre Dame, BS
  • New York University, MD
  • Massachusetts General Hospital, Residency and Fellowship

Get to know

Kristina Schnitzer, MD

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.

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Mark Sundahl, MD

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Dr. Mark Sundahl is a board-certified adult psychiatrist. He was born and raised in the suburbs of Kansas City, Kansas. He has always been fascinated by the natural world and received a bachelor’s degree in biology at Kansas State University where he was active in a research lab investigating protein function in the human body. He completed medical school training and residency at the University of Kansas School of Medicine in Kansas City, Kansas along with Wichita, Kansas. Dr. Sundahl has experience working with a broad range of mental health symptoms and a diverse patient population

Dr. Mark Sundahl is a board-certified adult psychiatrist. He was born and raised in the suburbs of Kansas City, Kansas. He has always been fascinated by the natural world and received a bachelor’s degree in biology at Kansas State University where he was active in a research lab investigating protein function in the human body. He completed medical school training and residency at the University of Kansas School of Medicine in Kansas City, Kansas along with Wichita, Kansas. Dr. Sundahl has experience working with a broad range of mental health symptoms and a diverse patient population

Dr. Sundahl understands the importance of collaboration and the therapeutic alliance when working with patients. He will clearly explain his findings and discuss treatment options he feels are reasonable. Dr. Sundahl thinks it is important for patients to have all the necessary information to make informed decisions when it comes to their psychiatric treatment.

Jordan Kalosieh, MD

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Dr. Jordan Kalosieh has experience treating patients across the lifespan in a variety of clinical settings, including inpatient, intensive outpatient, rehabilitation, and outpatient care. She earned her medical degree from St. George’s University School of Medicine and completed her psychiatry residency at HCA Aventura Hospital, where she served as chief resident.

Dr. Kalosieh believes in open and transparent communication, offering guidance while respecting each patient’s autonomy. She values authenticity in the therapeutic relationship, combining warmth with directness to create a calm, attentive, and nonjudgmental environment where patients feel supported and understood.

Dr. Kalosieh takes a holistic approach, carefully considering each patient’s unique history, needs, and goals when creating treatment plans. She emphasizes shared decision-making by clearly communicating her thought process and engaging patients as active partners throughout their treatment journey.

Rania Elkhatib, MD

Staff Psychiatrist

Dr. Rania Elkhatib is a board-certified general psychiatrist with extensive experience in clinical care, teaching, and research. She earned her medical degree from the University of Texas Medical Branch in Galveston and completed her psychiatry residency at UTHealth Science Center in Houston, where she later served as an Assistant Clinical Professor. During that appointment, Dr. Elkhatib was heavily involved in medical education and has developed courses in cultural psychiatry and psychiatry boot camps for medical students.


Dr. Elkhatib specializes in treating a wide range of psychiatric conditions, including Major Depressive Disorder, Anxiety Disorders, Bipolar Disorder, OCD, ADHD, and PTSD. Dr. Elkhatib focuses on evidence-based medication management but will also incorporate supportive therapy and cognitive-behavioral techniques to optimize treatment management and patient’s wellness. She is fluent in Arabic and English and has a strong interest in working with diverse patient populations.


Dr. Elkhatib has a holistic approach with focus on medication management while incorporating supportive therapy and cognitive-behavioral techniques to optimize patient wellness.

Christopher Debernard, MD

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Dr. Christopher DeBernard is a board-certified psychiatrist with extensive clinical leadership experience. He earned his MD and completed a combined residency in Internal Medicine and Psychiatry at Tulane University School of Medicine. Previously board certified in Internal Medicine, he is especially comfortable caring for patients with medical comorbidities. Dr. DeBernard has worked in both inpatient and outpatient settings and held leadership roles as Chief Medical Officer at Arisa Health and Lotic.ai. He also brings a systems-thinking perspective to clinical care from earlier careers in engineering and consulting. He holds active medical licenses in Louisiana and Arkansas.

Dr. DeBernard strives to create a warm, collaborative environment where patients feel respected, understood, and supported. His approach combines evidence-based medicine with an appreciation for each patient’s unique story, values, and motivations. Patients can expect open, direct communication, shared decision-making, and treatment plans that align with their personal goals. Trust, empathy, and authenticity form the foundation of his therapeutic relationships.

Dr. DeBernard begins by listening closely to each patient’s history, concerns, and hopes for treatment. Together, he works with patients to establish clear goals and develop individualized care plans that may include therapy, medication management, and lifestyle approaches. His focus is on both symptom relief and building long-term resilience, helping patients develop strategies that sustain well-being. Over time, he collaborates with patients to adapt treatment as their needs evolve, ensuring care remains effective and personalized.

Heath Foreman, DO

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Dr. Heath Foreman is double board-certified in General Psychiatry and Child and Adolescent Psychiatry. He is a Texas native and received his Bachelor of Science in Medical Technology from UTSouthwestern Medical Center in Dallas. His medical degree was earned at the University of North Texas Health Science Center - Texas College of Osteopathic Medicine in Fort Worth. He completed residency and fellowship training at Baylor Scott & White - Texas A&M in Temple and has been practicing since 2015. He served as Medical Director for a community mental health system for 10 years and has experience working with patients who have ADHD, Autism, Intellectual Developmental, Anxiety, Mood and Traumatic Stress Disorders and Psychosis.

Dr. Foreman uses a professional yet conversational style so that patients may feel at ease while developing a comprehensive understanding of the issues at hand. He prefers an educational approach so that patients can gain the knowledge and tools required to achieve improvement.

Dr. Foreman will perform a broad evaluation and work with his patients to create an evidence-based, personalized treatment plan. Subsequent meetings will incorporate medication management as well as psychotherapeutics based on Cognitive Behavioral, Trauma Based and Psychodynamic techniques. He will provide referrals for traditional counseling or testing when appropriate.

Nicholas Tamoria, MD

Chief Psychiatrist

Dr. Tamoria is a California native whose career has taken him around the country. As a medical student at Temple School of Medicine in Philadelphia, PA he worked in a culturally diverse, urban community. He was Chief Resident at the “President’s Hospital” in Washington DC and spent the first part of his career serving as an active-duty Navy psychiatrist helping servicemembers and veterans. After the Navy, he returned west to WA whereas a Medical Director he led one of the state’s most successful behavioral health programs through COVID and into the telehealth revolution. Now he serves as Talkiatry’s first West Coast Chief leading and supporting psychiatrists across the western US.

Dr. Tamoria works with adults to diagnose and treat a wide variety of mental health conditions including Depression, Anxiety, ADHD, Bipolar Disorder, PTSD, and more. He uses a combination of medication management and psychotherapy treatment to help patients improve and thrive. He is well experienced in caring for patients with complex histories or co-morbid medical conditions.

In the first appointment with Dr. Tamoria he completes a comprehensive evaluation of mental health symptoms, medical history, social supports, and stressors. He works collaboratively with patients to develop a treatment plan that may include lab tests, managing medications, initiating psychotherapy, or referring to other specialists. Over time he builds on the patient’s strengths and resilience to lead to recovery.

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Specialties
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
Postpartum Depression
Geriatric
States
Massachusetts
Florida
New York
Languages
English
Takes insurance
Virtual visits
3 years experience