Alejandra Cattan, MD

Dr. Jenna Hartman is double board certified in General Psychiatry and Addiction Psychiatry. Dr. Hartman graduated from Tufts University before completing medical school at New York Institute of Technology College of Osteopathic Medicine. She then completed residency at Maimonides Medical Center, where she was a Chief Resident, and then pursued an addiction psychiatry fellowship at Mount Sinai Beth Israel. Dr. Hartman was also trained in psychodynamic psychotherapy by the Psychoanalytic Association of NY. Following her training, Dr. Hartman returned to Maimonides Medical Center, where she worked as an attending adult outpatient clinic, treating patients from many different backgrounds with a wide array of diagnoses. She holds a special interest in treating mood disorders, anxiety disorders, and OCD. Dr. Hartman uses a compassionate and thoughtful approach in order to form a collaborative partnership with her patients. She believes in treating the person as a whole and tailoring treatments to each individual's specific needs. Dr. Hartman works with patients in 30 30-minute follow up sessions, where in addition to medication management she provides supportive and at times psychodynamic therapeutic techniques.

Michelle Harris is a board-certified psychiatric mental health nurse practitioner (PMHNP). She earned her Master of Science in Nursing in the psychiatric mental health track at the University of Saint Joseph and her Bachelor of Science in Nursing from the University of Connecticut. Her training includes psychiatric diagnosis, medication management, cognitive behavioral therapy, and motivational interviewing. With over a decade in psychiatric mental health care and 5+ years as a PMHNP, she has worked in outpatient, private practice, telehealth, inpatient, and homecare settings, treating patients from diverse backgrounds, including neurodivergent, LGBTQ+, BIPOC, and immigrant populations. She has a particular interest in ADHD, depression, anxiety, and OCD.

Michelle values a holistic approach to mental health and believes culturally sensitive care is essential. She strives to create a supportive environment for patients of all backgrounds and sexual orientations, ensuring each person feels understood, respected, and empowered in their care.

Michelle focuses on medication management with supportive therapy as appropriate. Initial sessions involve gathering a detailed patient history and discussing individual concerns. She works collaboratively with each patient to develop a personalized treatment plan, addressing their unique needs and goals.

Rhea Kisling, LPC, LCMHC, LMHC, CPCS, brings more than 20 years of experience to her work as a therapist. She has served in inpatient, outpatient, emergency, hospital, and community mental health settings, as well as leadership roles such as managing the social services department at a crisis stabilization facility. Rhea earned her MS in Clinical/Counseling Psychology and Ed.S. in School Psychology from Valdosta State University, and a BA in Psychology and Sociology from Loyola University in New Orleans. Licensed in Georgia, North Carolina, Florida, and South Carolina, she is also trained in Trauma-Focused Cognitive Behavioral Therapy (TF-CBT).

Rhea understands that beginning counseling can feel intimidating and strives to create a safe, welcoming environment where therapy moves at the patient’s pace. She primarily uses Cognitive Behavioral Therapy while incorporating elements of Behavioral Therapy, Solution-Focused approaches, Strength-Based methods, Motivational Interviewing, and Dialectical Behavior Therapy. Drawing on her multicultural background, she respects and honors each individual’s unique experiences and cultures. She believes no concern is too large or too small to address in therapy and emphasizes collaboration at every stage.

Rhea views the first appointment as a chance to build trust, explore how she and the patient can work together, and establish goals for therapy. She provides a clear framework for what to expect, welcomes questions, and encourages open communication throughout the process. Understanding that sharing personal history can be difficult, she is committed to moving at a pace that feels comfortable and supportive for each patient.

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Dr. Chelsea Karson is a board-certified psychiatrist who completed her residency training at Advocate Lutheran General Hospital where she was Chief Resident of her program. Dr. Karson is passionate about patient care, believing in caring for the whole person. While completing her residency training, she led an interprofessional team to bring miniature-therapy horses to the inpatient psychiatry unit and thereby forge a relationship between the organization and all of Advocate Aurora Healthcare. Dr. Karson partnered with a mental health counselor to create a virtual therapy program of resources, the Bridge Project, to close the gap between inpatient and outpatient care that is now used throughout the Advocate Aurora network. At graduation Dr. Karson received the 2024 Advocate Lutheran General Hospital Ruggie Humanitarian Award. The Ruggie Award selects and honors a graduating resident or fellow who displays academic excellence, commitment to the education of others, professional bearing, and a concern for the patient within the light of Human Ecology. Dr. Karson attended undergraduate at Elmhurst University, a biology major with minors in chemistry and medical humanities. She went to medical school at Rosalind Franklin University and was chosen to join the Gold Humanism Honor Society for her dedication to compassionate patient care.

Dr. Danielle Jackson is a board certified Adult Psychiatrist by the American Board of Psychiatry and Neurology. She is a graduate of Yale University's Psychiatry Residency and Howard University College of Medicine. Dr. Jackson's practice focuses on a combination of psychopharmacology (medication) and psychotherapy techniques including supportive therapy, motivational interviewing and cognitive behavioral therapy. She approaches care from an individualized, patient-centered, collaborative perspective. She often integrates evidence-based lifestyle recommendations in areas such as nutrition, sleep hygiene, exercise, and stress management tools in treatment to help patients achieve their wellness goals. Her interests include adjustment disorder, mood disorders, anxiety disorders, ADHD and trauma-related disorders. In addition, she enjoys helping patients navigate the challenges that can accompany changes in life (careers, parenthood, relationships, chronic illness). Prior to joining Talkiatry, Dr. Jackson served as medical director for substance use and co-occurring disorders at Sunset Terrace Family Health Centers at NYU Langone. She has experience caring for a diverse patient population including those with perinatal mood disorders (postpartum anxiety/depression), substance use disorders and those from minoritized and marginalized communities.

Dr. Natalie Cummings is a board-certified adult psychiatrist, and board-eligible geriatric psychiatrist. She obtained her medical degree from the University of North Carolina at Chapel Hill, and completed her residency training in psychiatry at the University of Miami Miller School of Medicine and Jackson Memorial Hospital. She then went on to complete her geriatric psychiatry fellowship at Icahn School of Medicine at Mount Sinai Beth Israel. During her fellowship, Dr. Cummings participated in Mount Sinai's Visiting Doctors Program, providing patient-centered and compassionate care to homebound elder adults in New York City. She also received training at Coler Rehabilitation and Nursing Care Center on Roosevelt Island during her fellowship, and presented at the American Association for Geriatric Psychiatry annual meeting. During her training, Dr. Cummings 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. Cummings worked at New York Presbyterian's Gracie Square Hospital, serving first in the position of float psychiatrist, providing care to patients on every inpatient psychiatric unit (including the young adult/college student program, Orthodox Jewish program, psychotic disorders program, crisis-stabilization program, dual focus program, and Asian Psychiatry program), before transitioning to an established psychiatric attending for the older adult program. During her time at Gracie Square Hospital, Dr. Cummings received the Physician of the Year Award, and served as a Clinical Assistant Professor of Psychiatry at Weill Cornell Medicine. She worked closely alongside staff psychologist, social workers and nurses to provide multidisciplinary, collaborative care to patients suffering from a variety of mental health conditions. Dr. Cummings primarily focuses on medication management and supportive psychotherapy, but has extensive training in utilizing various therapy modalities, including cognitive behavioral therapy, interpersonal therapy, reminiscence therapy, and psychodynamic psychotherapy. When appropriate, Dr. Cummings will refer for more extensive psychotherapy and/or collaborate with your established psychotherapist for comprehensive care. Dr. Cummings strongly believes that addressing psychosocial and interpersonal factors (including relationship health, economic stressors, social isolation and loneliness) is as essential as pharmacologic management in treating mental health conditions. She has particular experience and interest in treating older adults and those suffering from memory disorders, but provides treatment for a variety of psychiatric conditions including depression, anxiety, bipolar disorder, obsessive-compulsive disorders, trauma-related disorders and substance use disorders. Dr. Cummings is a member of the American Psychiatric Association and American Association for Geriatric Psychiatry.