Daniel Weiss, MD

Dr. Roxanne McClung is completing her General Psychiatry Residency at the University of Texas Health Science Center at Tyler, where she serves as Chief Resident. She earned her MD from the American University of the Caribbean and holds a Master of Science in Clinical Psychology from the University of Texas at Tyler and a BA in Psychology from Southern Methodist University. With over 20 years of experience in mental health, she has worked as a case manager, psychotherapist, and program/clinical director.

Dr. McClung is passionate about helping people through life’s challenges. She creates a non-judgmental, patient-centered environment that fosters open communication and collaboration. She emphasizes individualized care and integrates lifestyle medicine and psychotherapy, primarily using Cognitive Behavioral Therapy and Cognitive Processing Therapy.

Dr. McClung begins with a thorough assessment to understand each patient’s history, concerns, and goals. She works collaboratively to create a personalized treatment plan that may include medication and evidence-based therapy. Her approach ensures clarity, respect, and patient involvement throughout the process.

Dr. Mandel received his Bachelor of Arts and Doctor of Medicine degrees from the University of Pennsylvania. He completed his Residency in Psychiatry at Mount Sinai Medical Center in Manhattan. He has been board certified in psychiatry since 2001 and is a Life Fellow of the American Psychiatric Association. He has held numerous clinical and academic appointments including serving as Chairperson of Psychiatry at Huntington Hospital in Huntington, New York, and Assistant Professor of Psychiatry at Hofstra North Shore-LIJ School of Medicine.

Dr. Mandel has over 25 years of clinical experience treating all mental health conditions. He has a strong interest in mood and anxiety disorders, including work-related anxiety. He authored a section on the pharmacology of social anxiety in the book Work Makes Me Nervous. Dr. Mandel also has expertise working with clients diagnosed with borderline personality disorder. He has lectured on the pharmacologic management of this condition, including a presentation at the NIMH International Think Tank for the More Effective Treatment of Borderline Personality Disorder.

Dr. Mandel continually seeks to streamline complex medication regimens. He has completed a fellowship in integrative psychiatry and carefully considers the potential contributions of lifestyle and nutrition to overall mental health and well-being. By taking an eclectic approach, Dr. Mandel is able to achieve the best possible outcome for all whom he is privileged to serve.

Leanne Booth is a board-certified Family Psychiatric and Mental Health Nurse Practitioner who brings over two decades of experience in psychiatric nursing and advanced practice care. She offers a warm, collaborative approach grounded in empathy and whole-person care. Clients describe her as calm, attentive, and deeply compassionate, and she aims to create a safe, supportive environment where individuals feel heard, respected, and understood.

Leanne believes that trust and honesty are the foundation of effective treatment. She values open dialogue and strives to meet clients where they are, without judgment. Her approach is person-centered and trauma-informed, with a focus on empowering clients in their care decisions. She works closely with each patient to understand their goals, preferences, and challenges, while offering evidence-based treatment tailored to individual needs.

In sessions, Leanne blends medication management with supportive therapy, psychoeducation, and motivational interviewing. She takes a holistic view of each patient’s health, considering possible medical causes for psychiatric symptoms and coordinating with primary care providers when appropriate. Her goal is to provide thoughtful, integrated care that supports clients in achieving long-term wellness.

Dr. Kristin Ratz is a Board-Certified psychiatrist who is an expert in the diagnosis, treatment, and prevention of mental, emotional and behavioral disorders. She specializes in medication management combined with supportive therapy during 30-minute follow-up sessions. Dr. Ratz recognizes that each patient is unique and believes in an environment of collaboration, in which the patient and psychiatrist work together in order to develop the best individualized treatment plan. A California local, Dr. Ratz obtained her undergraduate education at University of California, Davis, graduating magna cum laude with a degree in Human Development. She then attended medical school at Loma Linda University School of Medicine, obtaining her Medical Doctorate. Following this, she completed her adult psychiatry residency training at the distinguished University of California, Irvine. Dr. Ratz has worked in a diverse range of healthcare settings, including county and community clinics, and is very experienced in telepsychiatry. She pays close attention to not only an individual's emotional state, but also their physical, spiritual, and social well-being, in order to provide her patients with exceptional holistic care.

Tracy King, PMHNP-BC, is a compassionate and board-certified psychiatric nurse practitioner dedicated to supporting individuals on their mental health journeys. She holds a Master of Science in Nursing from The Ohio State University and has experience working with individuals across the lifespan.

Tracy has worked in a variety of clinical settings, addressing a broad range of mental health concerns. She is driven by a strong commitment to serving those in need and takes pride in delivering trauma-informed, evidence-based care tailored to each individual’s unique circumstances.

Her approach centers on creating a supportive environment where patients feel heard, valued, and empowered. Tracy’s goal is to help individuals build resilience, enhance well-being, and achieve meaningful, lasting change.

Believing that each person is the expert in their own life, Tracy takes time to listen, understand, and build genuine connections. She collaborates closely with her patients to develop care plans that reflect a whole-person perspective.

Tracy emphasizes shared decision-making and a holistic approach to mental health care. Her calm, positive demeanor and approachable communication style foster trust and openness, allowing her to build strong therapeutic relationships that support healing and growth.

‍

Darcie Farrell is an ANCC Board Certified Family Psychiatric Nurse Practitioner.  She has worked exclusively in the field of psychiatry during her forty-year nursing career.  She has worked in many care settings, including as a psychiatric Home Health Nurse and as a Certified Case Manager (CCM) in Psychiatry at Blue Cross Blue Shield. During her time at Excellus Blue Cross Blue Shield, she realized the urgent need for psychiatric nurse practitioners, so enrolled in the BSN/MSN program at the University of Rochester, graduating in 2016 with her BSN and in 2018 with her MSN.  She has strong skills and experience in Motivational Interviewing, having worked as a Motivational Counselor for a University of Rochester's Pediatric Research Program.   She has worked for the past seven years as a Nurse Practitioner in Geriatric Outpatient Psychiatry.

Darcie Farrell is a compassionate provider who is client centered. I rely on evidence-based scientific research when determining the best treatment options for clients.  

Darcie Farrell has a very relaxed process for working with patients which allows the client to provide information that is pertinent to their goals for care.  Then, together, we determine which treatment options are likely to be best for the client.

‍