Geoffrey Sinner, MD

Dr. David Guggenheim is an experienced clinical psychologist and health care administrator. He has worked with patients at different stages of life, including children, adolescents, and adults, and he has treated patients living with a wide range of mental health conditions, including anxiety, depression, post-traumatic stress disorder (PTSD), substance use, and attention-deficit hyperactivity disorder. Dr. Guggenheim has specific training in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and foundational training in dialectical behavioral therapy. Prior to joining Talkiatry, Dr. Guggenheim served as the Chief Behavioral Health Officer at Callen-Lorde Community Health Center in New York City, specializing in LGBTQ+ health care. In that role, he oversaw teams of providers including psychiatrists, psychologists, and social workers, who collectively provided care to thousands of patients in the New York metropolitan area. While at Callen-Lorde, he also served as co-chair for the behavioral health subcommittee of the Community Health Center Association of New York State; worked as an Adjunct Professor at Post University; and performed volunteer clinical work at the Weill Cornell Center for Human Rights. Before joining Callen-Lorde, Dr. Guggenheim worked as Associate Chief Behavioral Health Officer at Community Health Center, Inc., a federally qualified health center in Connecticut. A recognized expert, Dr. Guggenheim has delivered lectures to audiences ranging from medical schools to corporate executives, and he has been quoted in national media including The Advocate, Yahoo Finance, and Teen Vogue. Dr. Guggenheim has also been honored with an Early Career Achievement Award from the American Psychological Association in 2016. Dr. Guggenheim received his Bachelor of Arts from the University of Connecticut in 2002 and his Doctor of Psychology in Clinical Psychology from the American School of Professional Psychology at Argosy University/Washington, DC in 2009.

Dr. Jacob Webbert is double board-certified in Psychiatry and Addiction Psychiatry. He earned his medical degree from the Lake Erie College of Osteopathic Medicine in Erie, PA, and completed his psychiatry residency at Albany Medical Center in Albany, NY. He then pursued fellowship training in Addiction Psychiatry at Dartmouth-Hitchcock Medical Center in Lebanon, NH. Dr. Webbert has extensive experience across telehealth, outpatient psychiatry, and substance use disorder treatment programs, providing comprehensive care tailored to a wide range of patient needs.

Dr. Webbert takes a supportive, non-judgmental approach to care, prioritizing open communication and trust in the treatment process. He works with patients to set realistic, meaningful goals that align with their values and promote lasting improvement in mental health. His patients can expect a collaborative partnership where they feel heard, respected, and empowered to take an active role in their care.

Dr. Webbert begins by listening carefully to each patient’s unique story, concerns, and goals. From there, he develops a personalized treatment plan that may include therapy, medication management, or a combination of both. He collaborates with patients over time, adjusting the treatment plan as needed to best support progress and recovery, with the shared aim of building resilience and achieving sustainable wellness.

Dr. Daniel Azzopardi was born and raised in Malta where he attended medical school and worked in internal medicine for several years before moving to New York in 2017. He then completed a psychiatry residency at SUNY Downstate and stayed on for his Child and Adolescent Psychiatry fellowship, which he completed in June 2024. Dr. Azzopardi is a dedicated adult and child and adolescent psychiatrist who treats individuals of all ages and uses his strong foundation in internal medicine to handle complex cases requiring intricate medication management. This combination of skills allows for comprehensive care that addresses both mental and physical health challenges. Dr. Azzopardi's holistic approach ensures that each patient receives tailored treatment, fostering improved outcomes and overall well-being.

Laura Hickman, PMHNP, earned her BSN from the University of Iowa and her MSN from Saint Louis University. During her graduate training, she completed multiple outpatient internships, including one focused on Dialectical Behavioral Therapy, a modality she frequently incorporates into care. Board Certified as a Psychiatric Nurse Practitioner since 2014, she has practiced across Community Mental Health, inpatient psychiatry, crisis stabilization, TMS, and Suboxone treatment. She works with patients ages 5+ and specializes in ADHD, anxiety, and depression.

Laura’s priority is ensuring patients feel heard, valued, and respected. She fosters a collaborative, team-based environment where patients feel in control of their health. Rather than focusing solely on diagnosis, she emphasizes how someone is functioning in daily life. With warmth and “cheerleading” support, she helps patients feel less alone and more empowered to open up and pursue meaningful change.

Laura begins by exploring each patient’s history, past treatments, and current challenges at home, work, or in parenting. She develops individualized treatment plans in partnership with the patient, serving as a guide toward their goals. Together, they determine whether therapy, medication, or both best support improved functioning and well-being.

Dr. Triston Wong is a board-certified adult psychiatrist who emphasizes a collaborative approach and strong therapeutic alliance in the treatment of psychiatric conditions. Though his practice focuses on medication management, Dr. Wong advocates for a holistic approach to treatment. He may incorporate elements of various psychotherapies, including supportive, cognitive-behavioral (CBT), and insight-oriented therapy. At times, Dr. Wong may believe that additional therapy is needed for the best outcome and recommend that you bring a dedicated therapist into your care team. Dr. Wong completed his undergraduate studies at Tulane University. He received his medical degree from Louisiana State University New Orleans School of Medicine, then completed his residency training in general psychiatry at Thomas Jefferson University Hospital in Philadelphia, PA. Dr. Wong has experience working with patients of widely varying backgrounds and socioeconomic statuses. He works primarily with adult patients struggling with depression, anxiety, trauma, and grief. ‍

Dr. Atkins is a staff psychiatrist at Talkiatry. He is board-certified in adult psychiatry and has been in practice for the past 2 years. He has received several awards for teaching and the treatment of chronically ill patients, including Stony Brook University's "William Turner Award" for excellence in education and leadership. Dr. Atkins has focused his practice primarily on medication management. He combines medication management with a therapeutic style that is a blend of supportive therapy, cognitive behavioral therapy, and motivational interviewing. Follow‐up appointments with Dr. Atkins typically last 20‐30 minutes. While Dr. Atkins is trained in a variety of therapeutic techniques, he works collaboratively with therapists and may recommend their inclusion as part of your treatment team, depending on your individualized treatment plan .Dr. Atkins attended the University of Connecticut School of Medicine where he received his medical degree. He completed his psychiatry residency at Stony Brook University Hospital in New York. Post residency, he worked with general adult patients as well as older adults at Manchester Memorial Hospital where he served as both an outpatient psychiatrist and Director of the Geriatric Intensive Outpatient Program. Although Dr. Atkins does not treat child or adolescent patients, he has experience working with people of all ages, from young adults to adults. He has experience treating mood disorders, anxiety disorders, obsessive-compulsive disorder, patients in the perinatal period, and patients with co‐co-occurring substance use disorders. He has regularly managed behavioral problems in adults with autism spectrum disorders as well as dementia. He particularly enjoys working with patients dealing with life or role transitions, older adults, and patients with bipolar or other affective disorders.