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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.

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.

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Wadzanai Lee, PMHNP

Staff Nurse Practitioner

Wadzanai Lee is a board-certified Family Psychiatric Nurse Practitioner with Talkiatry. She obtained a Bachelor of Science Nursing from University of Texas at Arlington, Arlington, TX in 2013 and Master’s Degree at The University of Texas at Arlington, Arlington, Tx in 2016. She enjoys treating a wide range of psychiatric and mental health conditions, including depression, anxiety, bipolar and mood disorders, OCD, PTSD and ADHD.

Wadzanai's patient care approach embodies a blend of professionalism and compassionate understanding. She fosters an environment that supports her patients and encourages their active involvement in their health journey. Her care technique prioritizes the patients’ needs, creating a supportive and understanding space and ensuring each individual feels seen, heard, and valued. Her patient care style is characterized by her deep empathy and firm commitment to her patients' well-being. She understands the debilitating effects of mental health conditions and is dedicated to helping individuals achieve their mental health goals.

Each appointment ensures that every patient is treated with respect and receives the care necessary for their recovery and overall mental health. She believes in providing individualized therapeutic care to meet your specific needs using a compassionate and non-judgmental approach.

Her services to you will include psychiatric evaluations, medication management and therapy. If you are looking for a psychiatric and mental health provider who will partner with you on your journey to mental wellness, please call to schedule an appointment today.

Catherine Cashman, DO

Staff Psychiatrist

Background and credentials    

Dr. Catherine Cashman is triple board-certified by the American Board of  Psychiatry and Neurology in Adult Psychiatry, Child & Adolescent  Psychiatry, and Forensic Psychiatry. She holds two Bachelor’s degrees: one in  Finance from New York University, and another in Biology from the University  of New Orleans. She earned her medical degree from Nova Southeastern  University and completed an Adult Psychiatry residency at LSU Health Sciences  Center in New Orleans. Dr. Cashman subsequently completed two fellowships:  the first in Child & Adolescent Psychiatry at LSU New Orleans, along with  a certification in Infant Mental Health (working with children ages 0–6 years  and their caregivers); the second fellowship was in Forensic Psychiatry at  the University of Rochester and the Rochester Regional Forensic Unit.    

Treatment approach    

Dr. Cashman brings an extensive and specialized skillset to psychiatry,  informed by her triple board-certifications. Her treatment approach  integrates clinical expertise from adult, child and adolescent, and forensic  psychiatry, emphasizing accurate diagnosis, risk assessment, and  evidence-based care. With specialized expertise in forensic psychiatry and  competency assessments, she employs rigorous evaluation methods to accurately  inform treatment planning and risk management, particularly in complex or  legally-involved cases.    

What you can expect in a first visit    

Patients visiting Dr. Cashman for the first time can expect a detailed and  comprehensive psychiatric evaluation. Given her forensic and clinical  experience, initial assessments are thorough, focusing on clear diagnostic  understanding, individualized risk assessment, and appropriate treatment  planning. Patients can anticipate a collaborative, professional, and  structured environment aimed at clarifying diagnoses and addressing their  unique mental health needs effectively.    

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.

Maria Orejarena Serrano, MD

Staff Psychiatrist

Dr. Orejarena is board certified by the American Board of Psychiatry and Neurology. She finished her residency from Yale University and the University of Texas Houston. She has done extensive research on psychiatry during her PhD in Neuropsychopharmacology and a Master's in Neuroscience. She is bilingual in Spanish and English. She incorporates different therapy modalities and evidence-based treatments, tailored to each person's needs. She enjoys applying her knowledge in neuroscience and pharmacology into her clinical practice and believes a combination of medication and psychotherapy yields the best treatment outcomes.

Her ultimate goal is to help patients feel their best and accomplish their own goals by developing tools to navigate internal or external obstacles that are part of life. Dr. Orejarena is originally from Colombia, where she earned her medical degree from Universidad Industrial de Santander. She pursued a Master's in Neuroscience at the University of Barcelona and a PhD in Neuropharmacology at the Universidad Pompeu Fabra in Barcelona, Spain. Her PhD thesis was honored summa cum laude.

She completed a postdoctoral fellowship training at the Institut de Neurobiologie de la Mediterranee in Marseille, France. She is the author of multiple peer-reviewed publications and has presented her research at national and international meetings. Over the years, she has worked in a variety of settings including outpatient clinics, acute care, psychiatric hospitals as an Assistant Professor of Psychiatry at the University of Texas Health Sciences Center.‍‍

Rita Shaughnessy, MD

Staff Psychiatrist

Dr. Shaughnessy is boarded in adult psychiatry and has over 30 years of experience. Dr. Shaughnessy practices medication management in a supportive collaborative environment. Treatment recommendations may include psychotherapy with another professional in addition to medication management .Dr. Shaughnessy has worked with individuals having the spectrum of psychiatric disorders but is particularly interested in working with those with mood and anxiety disorders.

Amit Suneja, MD

Staff Psychiatrist

Dr. Suneja practices psychiatry through a collaborative, integrative, disability and healing justice-informed lens. He rejects oversimplified binaries, recognizing that healing requires embracing complexity. His training includes Columbia, Johns Hopkins, and a global mental health fellowship at UCSF. His clinical interests include anxiety, OCD, women’s reproductive mental health, climate stress, intergenerational trauma, immigrant and refugee mental health, and substance use concerns. Based in Tucson, he enjoys desert life, reading, baking, making art, and spending time with his two dogs.

Dr. Suneja provides a healing space that prioritizes each service user’s goals and lived experiences. His approach integrates psychiatric and psychotherapeutic practices with complementary, alternative, and natural therapies, as well as harm reduction. His approach is neurodivergence-, queer-, and gender-affirming as well as trauma-informed. Rejecting the binary of “mentally ill” vs. “mentally healthy,” he recognizes the mind, body, and soul’s inherent complexity.

Dr. Suneja tailors care to each service user. The first session explores goals, treatment options, and optimal meeting frequency. In many cases, visits are more frequent at the beginning of treatment and spaced out over time. He prefers visits at least every 4-6 weeks and integrates psychotherapy into all treatment plans, with many service users benefiting from ongoing deeper therapeutic work.

Alexander Wittenberg, DO

Staff Psychiatrist

Background and credentials    

Dr. Alexander Wittenberg is a board-certified adult psychiatrist. He received his undergraduate degree from Cornell University, majoring in Human Biology, Health, and Society. He earned his medical degree from the New York Institute of Technology College of Osteopathic Medicine, where he was a  member of the Psi Sigma Alpha Osteopathic Honor Society. As chief resident at  Mount Sinai Beth Israel, he gained extensive experience working in outpatient  settings and managing patient care at one of New York City's busiest clinics. Dr. Wittenberg has expertise in treating a wide range of mental health conditions, including depressive disorders, anxiety disorders, bipolar disorder, trauma and stressor-related disorders, and OCD.    

Treatment approach    

Dr. Wittenberg offers highly individualized and empathic treatment, primarily focusing on medication management. He frequently recommends integrating therapy into treatment plans and may suggest collaborating with a therapist. Dr. Wittenberg prioritizes a holistic approach, emphasizing overall well-being alongside symptom relief. He encourages the incorporation of mindfulness, self-compassion, exercise, nutrition, and attention to interpersonal relationships into his treatment strategy.    

What you can expect in a first visit    

During an initial visit with Dr. Wittenberg, patients can anticipate a collaborative, patient-centered, and non-judgmental environment designed to foster a meaningful therapeutic relationship. He will thoroughly discuss individual concerns and treatment goals, exploring potential therapeutic interventions, including medication management and holistic strategies to support mental health and overall wellness.

   

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.

Ready to get matched?

Start our short assessment
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