Jessi Munoz, MD

Dr. Hess is double board-certified in Adult and Geriatric Psychiatry. He completed his psychiatry internship and residency training at St. Vincent's Hospital and Medical Center in New York City, and then completed a geriatric psychiatry fellowship at Mount Sinai Beth Israel Medical Center. Dr. Hess has practiced inpatient psychiatry at the Long Island College Hospital, NYU Langone Brooklyn, and Kingsbrook Jewish Medical Center. He has also worked in emergency rooms, day hospitals, and consultation-liaison settings, as well as seeing geriatric outpatients at a naturally-occurring retirement community (NORC) on the Lower East Side of Manhattan. Dr. Hess has taught St. George's University medical students during their clinical rotations in psychiatry. Dr. Hess has more than 24 years of experience providing patients with compassionate psychiatric care for depressive and bipolar disorders, anxiety, obsessive-compulsive disorder, post-traumatic stress disorder, and dementia. He uses pharmacotherapy as well as supportive psychotherapy. Dr. Hess may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. The philosophy of his practice is to collaborate with patients to meet their specific needs and make an impact in various stages of their lives.

Dr. Alexandra Hamlyn is a board-certified adult psychiatrist and board-certified child and adolescent psychiatrist. She completed her medical education at Cooper Medical School of Rowan University and then completed her residency in adult psychiatry at Icahn School of Medicine at Mount Sinai Beth Israel. She then went on to complete her child and adolescent psychiatry fellowship at NYU Langone and Bellevue Hospital. During this time, she also taught a course titled Love Actually at NYU School of Arts and Science. During training, Dr. Hamlyn gained extensive clinical experience in psychiatric inpatient, outpatient, and emergency settings, allowing her the opportunity to treat patients of all ages and backgrounds in numerous busy hospitals in New York City. Dr. Hamlyn's primary focus is on medication management, though she also has experience working in four different outpatient clinics where she has gained expertise in multiple different therapy modalities. If appropriate, Dr. Hamlyn will refer you for psychotherapy and collaborate with your therapist to support your care. She appreciates the importance of fostering a meaningful therapeutic relationship, and her goal is to make every patient feel welcomed in a non-judgmental treatment environment. She also takes a holistic approach as she understands that good health creates a sense of overall well-being and improved mental health. She strongly emphasizes the importance of mindfulness, self-compassion, exercise, nutrition, and interpersonal relationships throughout treatment. She looks forward to meeting and working with you.

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.    

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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.    

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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.

Dr. Molly Fels is a board-certified psychiatrist. She completed her undergraduate education at Barnard College followed by medical school at Rutgers-Robert Wood Johnson Medical School. Dr Fels then completed her psychiatry residency training at Mount Sinai Beth Israel. She has previously worked in the Mount Sinai health system in the psychiatric emergency department and inpatient psychiatric unit. Dr. Fels has an interest in treating patients with a wide variety of psychiatric disorders including depression, anxiety, ADHD, and in working with patients who have experienced trauma. She believes in addressing holistic and lifestyle factors with her patients, including nutrition and sleep, in addition to pharmacology. Dr. Fels combines medication management and supportive psychotherapy to provide well-rounded and comprehensive care to her patients and prioritizes involving patients actively in each step of their psychiatric treatment.

Dr. Cabrera is a board‐certified psychiatrist with several years of experience working with an ethnically and culturally diverse population in outpatient, inpatient, and psychiatric emergency room settings. Most recently, Dr. Cabrera practiced privately treating adults with a wide range of mental illnesses both in person and via telepsychiatry. Prior to this, she was an attending psychiatrist in the outpatient department and in the Comprehensive Psychiatric Evaluation Center at Mount Sinai Beth Israel where she also served as Associate Training Director of Psychiatric Residency Training. Dr. Cabrera has a strong background in psychopharmacology and supportive and psychodynamic psychotherapy.

Dr. Valentina Doumanian is a board-certified psychiatrist. She completed her psychiatry residency training at Vanderbilt University in Nashville. She has practiced in various settings over her career, including in-patient and community mental health as well as Veteran Affairs out-patient clinics. Dr. Doumanian has held leadership and teaching positions where she instructed medical students, residents & and fellows. Dr. Doumanian has more than 17 years of experience treating patients with anxiety, depression, OCD, grief, PTSD, adjustment disorders, and other mental health issues. She uses pharmacotherapy along with cognitive behavioral therapy, psychodynamic psychotherapy, and supportive therapy as needed. The philosophy of her practice is to collaborate with patients to meet their specific needs and make an impact in various stages of their lives.‍