ADHD Psychiatrists in New York

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.

‍

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.

Xavier Diao, MD (he/him) is a board-certified psychiatrist. He earned his undergraduate degrees in Psychology and Biological Sciences at the University of Maryland, where he also obtained his medical degree. Dr. Diao completed his psychiatry residency at the Icahn School of Medicine at Mount Sinai, received additional training in child and adolescent psychiatry at Columbia and Cornell, and finished a psychoanalytic fellowship at the New York Psychoanalytic Society & Institute. Prior to joining Talkiatry, he was an Assistant Professor of Clinical Psychiatry at the University of Pennsylvania, where he provided clinical care and teaching along the undergraduate-graduate medical education continuum.

Dr. Diao's therapeutic orientation is informed by psychodynamic, cognitive behavioral, and dialectical behavior modalities. He has expertise in the treatment of a diverse range of mental health conditions, including depression, anxiety, OCD, and PTSD. Dr. Diao uses a developmentally informed and LGBTQ-affirmative approach in his practice, with the aim of enriching meaning and alleviating suffering in the domains of work, play, and love.

Dr. Diao begins each encounter with gentle curiosity, inviting patients to share their stories without fear of judgment. Together, he crafts an individualized treatment plan with the patient that may include medication, psychotherapy, and/or referrals to subspecialty care, always in close collaboration with other members on the treatment team.

‍

Dr. Michael Petetit has worked with people from many different walks of life in clinics, hospitals, and online, providing evidence-based treatments for a wide range of mental health conditions. His professional journey is unique—he began his career as a research chemist, later earned a Master’s degree in psychology and worked with children, before pursuing his medical degree and completing a psychiatry residency.

Dr. Petetit approaches treatment as a true collaboration. He partners with patients to clarify goals and create individualized treatment plans that reflect their priorities and values. He strives to be non-judgmental, direct, and honest in his style, building a therapeutic relationship that supports open communication and trust.

Dr. Petetit begins with a thorough evaluation to understand each patient’s circumstances and challenges. From there, he works with patients to set and prioritize goals, review treatment options, and select a plan that feels both comfortable and practical. As treatment progresses, he regularly revisits and refines the plan, ensuring it remains effective and aligned with the patient’s evolving needs.

Dr. Mann is a double board-certified psychiatrist specializing in the care of adults, with additional expertise in the care of older adults. Her practice focuses on medication management for a wide range of psychiatric conditions. It incorporates various therapeutic modalities in order to optimize symptomatic improvement and enhance quality of life. Dr. Mann received her medical degree from St. George's University School of Medicine. She completed her residency training in psychiatry at Maimonides Medical Center, and fellowship training in geriatric psychiatry at Columbia University Irving Medical Center. Dr. Mann's approach is rooted in empathy. She believes in the importance of a strong therapeutic relationship in facilitating the healing process. She strives to empower patients on their journey to recovery by partnering with them in their care.

Dr Hannah Goddard is an adult psychiatrist who is originally from Northeast Ohio. She earned her undergraduate degree at Marquette University and completed her medical degree at Lake Erie College of Osteopathic Medicine in Erie, PA. Dr. Goddard completed her residency in psychiatry at MetroHealth Medical Center in Cleveland, Ohio, where she served as chief resident her final year.

Dr Goddard has experience treating a wide range of conditions including depression, anxiety, ADHD, and PTSD. The initial evaluation includes taking a comprehensive history and getting to know patients as individuals.

Her clinical philosophy centers on an empathetic, nonjudgmental, holistic approach. Dr Goddard collaborates closely with patients to develop a personalized treatment plan that integrates psychiatric medication management with supportive psychotherapy as well as elements of CBT.

‍

Dr. Patel is a distinguished psychiatrist with over 24 years of experience. He completed his psychiatric residency at the University of South Dakota School of Medicine, where he served as chief resident and earned the Outstanding Resident of the Year award. He then pursued a fellowship in Consultation-Liaison Psychiatry at Harvard Medical School/Beth Israel Deaconess Medical Center.

He is triple Board certified in Adult Psychiatry, Consultation-Liaison Psychiatry, and Sleep Medicine and also holds certification in Behavioral Neurology and Neuropsychiatry from the United Council for Neurological Subspecialties. These credentials reflect his expertise in psychiatry, neurology, and the management of complex psychiatric conditions in medically ill patients.

Dr. Patel has worked in diverse settings including inpatient units, psychiatric consult services, outpatient clinics, and nursing homes. He is skilled in neuromodulation treatments such as Electroconvulsive Therapy (ECT) and Transcranial Magnetic Stimulation (TMS).

In addition to clinical practice, he has served leadership roles of chairman of a psychiatric department, medical director of a behavioral health service line in a regional health system, and founder/CEO of a private psychiatric and TMS clinic. Dedicated to ongoing professional growth, Dr. Patel remains at the forefront of psychiatric advancements in psychiatric care, earning a reputation as a respected leader in the field.

Dr. Patel combines deep knowledge of neurobiology, behavioral health, and the mind-body connection to offer a collaborative, evidence-based, and holistic approach to care. He integrates diet, exercise, yoga, meditation, and lifestyle modifications with psychotherapy and medication management.

His approach emphasizes active listening, curiosity, compassion, and even humor—creating a warm and supportive environment. By encouraging patients to integrate their unique life experiences into their treatment, he fosters ownership, empowerment, and active participation in the healing process.

During your first visit, Dr. Patel will review your symptoms, medical and psychiatric history, past treatments, substance use, psychosocial factors, and family history. He will discuss treatment options—including risks and benefits—and determine if his expertise and the telehealth platform are the right fit for your needs. Your safety is his top priority.

Follow-up visits focus on monitoring progress, adjusting treatments, maintaining stability, and supporting your motivation to achieve your fullest potential.

Dr. Nida Khan is a board-certified psychiatrist starting her post-graduate practice with Talkiatry. She completed her undergraduate degree in Biochemistry at Smith College, earned her medical degree at New York Institute of Technology College of Osteopathic Medicine and completed her psychiatry residency training at Northwell Health. During her residency, she was involved in resident leadership and education, serving as academic chief resident during her third year of training. Dr. Khan's practice focuses on a holistic, patient-centered approach. Her practice is rooted in evidence-based practices and focuses on providing medication management during 30-minute visits along with supportive therapy to meet the unique needs of individuals under her care. Occasionally, she may believe that additional therapy is needed and may recommend a therapist be brought into your care team for optimal care.

Education and training

Stony Brook University (Bachelor of Science)

American University of Integrative Sciences (MD)

Davenport University (MBA)

Bergen New Bridge Medical Center (residency)

University Hospitals Cleveland Medical Center/Case Western Reserve University (fellowship)

Dr. Mohammed Islam is board certified in both General Psychiatry and Child and Adolescent Psychiatry. He completed his undergraduate studies at Stony Brook University and attended medical school at the American University of Integrative Sciences. He completed his psychiatry residency training at Bergen New Bridge Medical Center followed by completion of a fellowship in Child and Adolescent Psychiatry at University Hospitals/Case Western Reserve University where he served as Chief Fellow. Prior to joining Talkiatry, he has trained/worked in a combination of various healthcare systems across New York, New Jersey, Ohio and Kentucky.

Dr. Islam treats patients of various ages- in addition to medication management he is a strong proponent of therapy in various forms. His approach to the treatment of adults and children/adolescents incorporates the impact of various things such as family history of mental health/medical conditions as well as any adverse childhood experiences/trauma. In addition to screening for common conditions such as bipolar disorder, anxiety and depression in all patients, he also emphasizes the importance of screening for conditions that can manifest in childhood (such as ADHD, Autism) as well as first-episode psychosis in young adults.

From the initial visit and onward, Dr. Islam prioritizes a collaborative effort with his patients (and at times their families). In addition to medication adjustments, he emphasizes the importance of optimizing additional tools such as therapy while making appropriate lifestyle changes. During every follow up visit, he takes care to ensure that the current treatment is not hindering his patient’s progress in any way.

‍

Dr. Jessica Healey is a board-certified adult psychiatrist. She obtained her medical degree from Cooper Medical School of Rowan University and completed her residency training in psychiatry at the University of Miami Miller School of Medicine and Jackson Memorial Hospital. During her training, Dr. Healey gained extensive experience providing psychiatric care to various patient populations in multiple patient care settings, including in the outpatient clinic, inpatient unit, and emergency department. Following her training, Dr. Healey worked as an outpatient psychiatrist for the Veterans Health Administration. During her tenure with the VA, she worked closely with staff psychologists, social workers and nurses to provide multidisciplinary, collaborative care to the veteran population suffering from a variety of mental health conditions.

Dr. Healey has experience and interest in treating adults suffering from trauma-related disorders and anxiety disorders but provides treatment for a variety of psychiatric conditions including depression, bipolar disorder, and obsessive-compulsive disorder.

Dr. Healey focuses on medication management and supportive psychotherapy, but has training in utilizing various therapy modalities, including cognitive behavioral therapy, interpersonal therapy, and psychodynamic psychotherapy. When appropriate, Dr. Healey will refer for more extensive psychotherapy and/or collaborate with your established psychotherapist for comprehensive care.

‍

Tulsie Patel is a board certified psychiatrist who treats adults. She graduated Cum Laude from Drexel University and attended medical school at the University of Miami Miller School of Medicine. She completed her psychiatry residency at the University of Texas Southwestern (UTSW) and was elected to serve as Chief Resident during her final year of training. She has worked as an outpatient psychiatrist in California and Florida and has experience in medication management, individual and group therapy, and transcranial magnetic stimulation (TMS). She is dedicated to constantly learning and has previously published numerous articles and book chapters on various topics in the fields of psychiatry, dermatology, and psychodermatology. She is also very passionate about education and medical journalism. During her residency training, she worked at ABC News in New York City as a member of their medical unit. She provided consultation on medical stories for programs including Good Morning America and World News with David Muir. She has published a number of articles on the websites for ABC News and Good Morning America. She also has experience presenting as an on-air expert for ABC News and for mental health podcasts. She is committed to continuously evolving as a provider in order to provide the best care for her patients. Her focus is always to provide patient-centered care by prioritizing open communication and collaboration with her patients. She has experience providing care for a variety of psychiatric illnesses. The conditions she treats include but are not limited to depression, anxiety, panic disorder, OCD, PTSD, and ADHD.

Dr. Richard Shehane completed medical school at the University of Nevada School of Medicine and then went on to complete psychiatry residency training at Naval Medical Center San Diego. Dr. Shehane is a board-certified psychiatrist that specializes in the treatment of depression, anxiety, PTSD, bipolar disorder, schizophrenia, personality disorders and ADHD. Dr. Shehane has also worked extensively with patients that have experienced sexual trauma in their past and patients struggling with substance and alcohol use addictions.

Dr. Shehane will focus on two main approaches to mental health treatment: medication management and psychotherapy. Appointments will focus on a mix of interactions aimed at tailoring each patient’s specific medication needs as well as promoting mental health wellness through different types of evidence-based therapy techniques including mindfulness, CBT, CPT and psychodynamic psychotherapy.

Dr. Shehane works together patients to develop a plan that fits each patient’s individual needs. Initial appointments will focus on identifying and treating primary concerns, and then later appointments will center on building upon the therapeutic relationship to increase self-awareness, promote emotional insight, and secure lasting positive mental health changes.

‍

Jeanine Foley is a board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) with over a decade of experience in both inpatient and outpatient settings. She holds a Doctorate of Nursing Practice from the University of Colorado Denver, an MSN from Vanderbilt University, and a BS from Boston University. Her career includes service as an active duty PMHNP in the U.S. Air Force and roles in the VA and private psychiatric hospitals. She also serves as Adjunct Clinical Faculty for a PMHNP graduate program.

Jeanine believes in patient-centered care built on trust, collaboration, and respect for each individual’s life story. She integrates medication management with therapeutic techniques and creates a safe, inclusive space that is trauma-informed and aligned with each patient’s values. Jeanine emphasizes genuine connection and strives to help clients explore root causes of distress—not just manage symptoms.

Jeanine begins with a comprehensive, collaborative assessment of each patient’s medical, psychiatric, and psychosocial history. She partners with patients to develop flexible, personalized treatment plans that support holistic mental health. Her approach combines psychopharmacologic and psychotherapeutic interventions, continuously adjusting plans based on feedback and progress.

Sonya R. Isler, PMHNP-BC, began her nursing journey over 30 years ago in a state psychiatric hospital in Goldsboro, NC, inspired by the poised nurse she admired at church as a child. Her path includes roles as LPN, RN, BSN, and multiple advanced practice degrees. Sonya has worked in inpatient and outpatient settings, VA clinics, and private practices. She also serves as a preceptor for PMHNP students at her alma mater, the University of North Carolina at Chapel Hill.

Sonya creates a welcoming, respectful space where patients feel safe to communicate openly. She practices active listening and values patient input when setting therapy goals. Her approach is holistic—treating the whole person—and she encourages collaboration, helping patients feel seen, heard, and empowered in their care.

Sonya reviews a patient's history before each session and begins with clear introductions and goal setting. She invites open discussion of concerns and tailors' treatment plans with patient input. She often incorporates CBT, motivational interviewing, and solution-focused therapy into care, promoting growth through supportive, personalized strategies.

Dr. Bardugon is a board-eligible psychiatrist who specializes in the treatment of adults. He has experience in treating patients with various forms of depression and anxiety, bipolar disorder, OCD, ADHD, PTSD, and substance use disorders. He seeks to provide a safe, non-judgmental, gender affirming space for patients as they strive to lead a happier, more contented life. After a pediatrics residency, Dr Bardugon worked for 13 years as a pediatric ER physician. His interest in psychiatry was piqued during this time as he witnessed the emergence of a child and adolescent mental health crisis. While ultimately deciding to focus his efforts on the treatment of adults, Dr Bardugon is keenly aware of the influence of child development and family systems on the behavioral health of adults. Dr Bardugon employs a holistic, multimodal treatment approach. Aiming to treat the whole person, he stresses the importance of nutrition, exercise, and sleep. Dr Bardugon believes an informed patient actively engaged in decision making surrounding treatment has the best chance of effecting lasting change. Believing in the synergistic effect of talk therapy and medication, he incorporates one or more talk therapy techniques including motivational interviewing, cognitive behavioral therapy, and supportive and psychodynamic psychotherapies into most sessions. He often recommends formal participation in some form of talk therapy and is happy to collaborate with other providers.

Dr. Kristen Clark earned her medical degree from Jefferson Medical College and completed her psychiatry residency at Rutgers Robert Wood Johnson. She has extensive experience practicing primarily in outpatient settings, along with additional experience in inpatient, consultation, and emergency psychiatry. Dr. Clark is licensed in Indiana, New Jersey, and New York. She has also served in academic roles, teaching and mentoring trainees in both medical school and residency. She is board-certified in Psychiatry and in Addiction Medicine.

Dr. Clark prioritizes creating a welcoming environment where patients feel comfortable sharing their experiences. She values building strong rapport and approaches care holistically, recognizing that each patient is unique and deserves an individualized treatment plan. She appreciates the ongoing nature of outpatient care and adapts her approach as patients’ goals and priorities evolve over time.

Dr. Clark takes a collaborative approach to treatment, working closely with patients to ensure their understanding of all available options. She empowers patients to make informed choices and partners with them to develop plans that best align with their needs, values, and goals for treatment.