Iris Vanessa Guerrero Urena, MD

Dr. Parker Loy is a board-certified Psychiatrist at Talkiatry. After finishing undergraduate studies at the University of Tennessee, Knoxville, he completed the University of Tennessee Health Science Center (UTHSC) Master of Science program before enrolling in medical school at the same institution. After graduating from medical school, he completed his residency at UTHSC, during which he trained in a variety of inpatient and outpatient settings and treated a broad spectrum of mental health conditions. He enjoys treating a wide variety of conditions, including mood and anxiety disorders. Therapeutic techniques are incorporated into medication management visits when indicated, and collaboration with therapists may also be recommended.

Dr. Jonathan Hertz is board-certified in adult psychiatry. He completed fellowships in child and adolescent and public psychiatry and has been practicing psychiatry for over 18 years. Dr. Hertz's practice focuses on medication management which is offered with supportive and/or dynamic psychotherapy within 30-minute follow-up sessions. If patients have individual psychotherapists, Dr. Hertz will work collaboratively with these providers within a treatment-team approach to patient care delivery. Dr. Hertz received his medical degree from Tufts University School of Medicine in Boston. He remained in Boston to complete a residency in adult psychiatry at Cambridge Health Alliance and a fellowship in child and adolescent psychiatry at Children's Hospital Boston. Dr. Hertz subsequently returned to his hometown of NYC and completed a fellowship in public psychiatry. Dr. Hertz has clinical and administrative experience in the field of psychiatry. These positions include ACT Team community psychiatrist, director of adult outpatient clinic, and medical directorship in behavioral health within community hospitals. With training in child/adolescent, adult, and public psychiatry, Dr. Hertz has a developmental approach to mental health care. That is, he collaboratively explores the bio-psychosocial factors that may have influenced the development of mental disorders. Dr. Hertz believes an ecological approach enables a broader view of the multip

Dr. Phelps is a board-eligible adult psychiatrist. She was elected chief resident by her residency program at the University of Central Florida. She obtained her medical degree at Nova Southeastern University. She graduated magna cum laude with a bachelor's degree in Kinesiology from Louisiana State University. Dr. Phelps believes in patient-centered care and a holistic approach to medicine. Her practice focuses on medication management, in conjunction with supportive therapy in 30-minute follow-up visits. If additional therapy is needed, she utilizes referrals to psychotherapists to enhance management of mental illness and provide the best treatment outcomes. Dr. Phelps has worked in a variety of medical settings with different patient populations, including outpatient, consult liaison, and inpatient psychiatry. Her primary focus is treating adults with depression, anxiety, ADHD, insomnia, and bipolar disorder. Dr. Phelps aims to build a strong therapeutic relationship and improve the quality of life of her patients.

Background and credentials

Dr. Stephanie Powers is a board-eligible psychiatrist with over 18 years of experience in psychiatric care. She earned her advanced medical degree from Adelphi University and completed her psychiatry residency training at SUNY Stony Brook University Hospital and Medical Center. Additionally, she holds a master’s degree in Developmental Psychology from Columbia University. Dr. Powers has held academic roles as an Associate Professor at Stony Brook University Hospital Medical Center and as a clinical instructor at New York College of Osteopathic Medicine, where she has supervised and trained residents and medical students.

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Treatment approach

Dr. Powers specializes in medication management and supportive therapy, providing compassionate psychiatric care tailored to individual patient needs. She has extensive experience treating adults in inpatient, outpatient, and emergency psychiatric settings, with a particular focus on PTSD in veterans. She has worked at Zucker Hillside Hospital, Pederson-Krag, Brookhaven Memorial Hospital, Northport VA Medical Center, Nassau University Medical Center, and Damian Family Care Centers. Her treatment philosophy is centered on helping patients reach their full potential and improve their overall quality of life.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive psychiatric evaluation, where Dr. Powers carefully assesses their symptoms, medical history, and personal goals. She prioritizes collaborative treatment planning, ensuring that each patient receives a personalized approach that may include medication management and therapeutic interventions. Her approach is patient-centered and focused on fostering well-being, with ongoing support to help individuals achieve their mental health goals.

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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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Tami is a Licensed Mental Health Counselor with a Master's Degree in the state of NY. She has been a therapist for about 8 years and attended graduate school at night while raising two amazing children. It is important for Tami to disclose this so that you know you are never too old to chase your dreams. She loves helping people and making a difference in people's lives. She uses various tools to help. If one tool isn't right, we search for others, never giving up! Tami is solution-focused but uses different approaches when helping clients. She likes to figure out which methods work best as there isn't a one size fits all way. She is a dedicated therapist with real world experience as well as clinical experience. Clients can expect to have great tools and coping mechanisms moving forward. Clients will know what steps need to be taken on their journey and will feel confident in knowing that they have Tami's support and commitment.

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.