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Mary Poupon, PMHNP

Staff Nurse Practitioner
Languages
English
SPECIALTIES
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
Medication Management

Education and training

  • Columbia University Master of Science in Nursing (MSN)

Get to know

Mary Poupon, PMHNP

Mary Poupon is an experienced board certified psychiatric APRN/psychiatric nurse practitioner with over 30 years' experience in her field. She completed her graduate work at Columbia University and is published in her field. Her practice sites have included inpatient hospital treatment, partial hospital programs, in-home programs, outpatient clinics and alternative therapy including equine assisted therapy.  She was the program director and clinician with the Ryan White Mental Health Program in New York providing innovative mental health treatment for adolescents and adults living with HIV/AIDS in the boroughs of Manhattan, Queens, Brooklyn and the Bronx.  In 2013 she became certified as an equine assisted psychotherapist and served as the Director of Mental Health at Embrace Hope in Sandy Hook, CT. She was appointed as the Executive Director of Embrace Hope in 2017. Embrace Hope provided treatment to children, adolescents and adults who were victims of trauma related to the shooting at the Sandy Hook Elementary School. She presented a TED x talk in 2018 regarding her work with victims of trauma. She has provided treatment in the outpatient setting for children, teens, and adults. She has provided treatment to young adults at the Covenant House New York shelter program for homeless young adults.

Mary believes the human spirit is resilient. There are many challenges in the lifespan and self-care is paramount to success.

Mary provides psychiatric consultation and assessment and provides a pathway to change. Treatment may include medication management, therapy, and coping skills to assist with life challenges. Mary believes treatment is a partnership and believes in establishing mutually agreed upon goals.

Mary's process for working with patients begins with active listening. The assessment begins with the patient describing why they are seeking engagement in behavioral health treatment at this time. She will complete a psychiatric assessment and evaluation and establish mutually agreed upon goals for treatment. She offers medication management in conjunction with supportive therapy in 30-minute follow-up visits. Mary believes therapy and medication management if indicated together provides the best treatment outcomes.

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Bobbie Anne Brown, LPC

Staff Therapist

Bobbie Anne is a Licensed Professional Counselor with over eight years of experience providing therapy and related services. She has worked in a wide range of therapeutic settings including inpatient psychiatric hospitalization, partial and intensive outpatient care, physician family practice and private practice. She works with clients affected by depression, anxiety, grief and loss, trauma and relationship challenges. She has experience with individual, group and family therapy.

Bobbie Anne is passionate about helping people discover hope, develop resilience and increase self-awareness to promote healing. She emphasizes Cognitive Behavioral Therapy and Solution Focused Therapy but integrates interventions from a variety of therapeutic approaches to allow for a treatment plan that will meet the unique needs of each specific client and help restore balance with a positive mindset for overall improved mental health and emotional wellbeing.

Bobbie Anne emphasizes an approach that is client-centered and strengths-based and promotes self-awareness. She seeks to create a warm and supportive environment where clients can establish unique and individualized goals toward healing. Bobbie Anne may utilize a range of techniques, including cognitive-behavioral strategies, solution-focused approaches, or person-centered counseling, depending on the client's individual needs.

Seth Flesher, MD

Staff Psychiatrist

Dr. Seth Flesher is double board-certified in adult psychiatry and addiction medicine.  Dr. Flesher’s practice focuses on medication management of psychiatric illness without the use of controlled substances.  Typically, he offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. However, occasionally Dr. Flesher may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome.

Before joining Talkiatry Dr. Flesher was Medical Director of Advanced Psychiatric Services [complex/high profile cases] at Kings County Hospital and Unit Chief of the Covid19 positive unit.  He was also a clinical professor at Downstate Medical College where he was voted educator of the year numerous times by psychiatric residents and medical students.  Dr. Flesher is a graduate of the prestigious combined 6-year BS/MD program at The Sophie Davis School of Biomedical Education.  He did research at the neuropsychiatric branch of the National Institute of Mental Health, completed his psychiatric residency at St. Lukes/Roosevelt Hospital, and he received his master’s degree in public health from Columbia University.

Dr. Flesher believes that psychiatry should start with a thorough assessment to arrive at an accurate diagnosis.  Then a discussion with the patient of the different evidence-based options available.  Followed by shared decision-making to arrive at an effective treatment plan to achieve the goals that the patient identifies as being important.  This should be done in an honest, open, non-judgmental, but realistic environment.  Understanding that the ultimate goal is to get the patient to a position where they will no longer need medication and/or therapy.

Vitaly Chernish, MD

Staff Psychiatrist

Dr. Vitaly Chernish is a board-certified psychiatrist. He earned his medical degree from the University of Tennessee Health Science Center, where he also completed his psychiatry residency training. Following residency, he relocated to New York City and worked at NewYork-Presbyterian Brooklyn Methodist Hospital. He also held an academic appointment as Assistant Professor of Clinical Psychiatry at Weill Cornell Medical College. Dr. Chernish specializes in the treatment of anxiety disorders, depression, bipolar disorder, post-traumatic stress disorder (PTSD), and obsessive-compulsive disorder (OCD).

Dr. Chernish strives to create a therapeutic environment that balances empathy and compassion with structure and clinical clarity. Patients can expect a thoughtful, respectful approach that prioritizes understanding their concerns while providing clear guidance and evidence-based recommendations.

Initial visits involve a comprehensive evaluation of psychiatric, medical, and psychosocial history, current symptoms, and medication use to ensure care is individualized and appropriate. Dr. Chernish emphasizes collaborative, multidisciplinary treatment and regularly coordinates care with primary care physicians, specialists, and therapists when clinically indicated.

Satveet Khela, DO

Associate Chief Psychiatrist

Dr. Satveet Khela is a board certified physician specializing in adult psychiatry. She has been practicing since 2021. In addition to focusing on medication management, Dr. Khela's practice also prioritizes a whole person approach, incorporating aspects of nutrition, lifestyle, mindfulness, and supportive or brief cognitive behavioral therapy into the treatment plan. Occasionally, Dr. Khela may believe that additional therapy is also needed and ask that you see a separate therapist to provide the best outcome. Dr. Khela received her undergraduate degree from the University of California, Berkeley and her medical degree from A.T. Still University. She completed her residency at University of California San Francisco Fresno, where she served as chief resident in her final year. After completing her training, Dr. Khela worked with medically ill patients with co-morbid psychiatric illnesses. Throughout her career, Dr. Khela has worked with a diverse set of patients in various stages of their lives. Dr. Khela focuses on treating patients with anxiety, depression, PTSD, bipolar, OCD, and other mental health issues. She believes in empowering her patients to be active players in their treatment plans to facilitate the best care possible.

Thomas Ittoop, MD

Staff Psychiatrist

Thomas Ittoop, MD is a psychiatrist with experience practicing in both academic and community settings. He earned his medical degree from Central Michigan University and completed his psychiatry residency at Baylor College of Medicine. His clinical work is grounded in thoughtful, patient centered care that combines medical rigor with a deep respect for the complexity of each individual’s life.

Dr. Ittoop fosters a warm, collaborative environment grounded in genuine human connection. He values exploring the deeper patterns that shape emotional life and the meaning beneath symptoms. Patients can expect transparency, clear communication, and shared decision making that honors their strengths, goals, and long-term well-being while helping them cultivate resilience and greater self-understanding.

Treatment begins with a thorough evaluation exploring symptoms, personal and family history, personality patterns, and the changes patients hope to achieve in their lives. From there, Dr. Ittoop works with each patient to develop a personalized treatment plan that includes thoughtful psychiatric medication management, supportive psychotherapy, and ongoing follow up. While he frequently works with patients experiencing anxiety and related conditions, his practice does not include prescribing benzodiazepines such as Xanax, Ativan, or Klonopin. Care instead focuses on evidence-based treatments that support lasting stability and deeper psychological understanding.

Tangeneare Singh, MD

Staff Psychiatrist

Dr. Tangeneare Singh earned a BS, Summa Cum Laude, from Tuskegee University and an MD from University of Chicago Pritzker School of Medicine. Commissioned in the United States Army, she completed psychiatry residency and child and adolescent fellowship at Walter Reed Army Medical Center. She later led Behavioral Health at Blanchfield Army Community Hospital and served 15 years as Department Chief at Alexander T. Augusta Military Medical Center, expanding key programs and mentoring staff and trainees. She retired as a CAPTAIN (O6) in 2026 with over 20 years of practice.

Dr. Singh provides a safe, nonjudgmental space where patients and families can openly share concerns. She partners with them to select evidence-based treatments that best address their symptoms and goals.

She begins with a thorough discussion of strengths, stressors, and biological and social factors to determine safety and level of care. Together, they develop a plan that may include medication, therapy, or referrals, with testing as indicated. Follow-ups include symptom review, plan adjustments, and attention to sleep, exercise, nutrition, hydration, and basic needs.

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Specialties
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
Medication Management
States
New York
Connecticut
Languages
English
Takes insurance
Virtual visits
years experience