Sarah Mennella, MD

Cassandra Thomas-Jingles is a dedicated, board-certified Psychiatric Nurse Practitioner with dual certification as a Family Nurse Practitioner. She is deeply passionate about helping others and takes a holistic, evidence-based approach to mental healthcare, empowering patients to live life to their fullest potential.

Her practice focuses on medication management and supportive therapy, offering 30-minute follow-up sessions. When additional therapy is needed, she recommends including a therapist in the care team to ensure the best possible outcomes. With extensive experience in both outpatient and inpatient settings, Cassandra has worked with adults and children facing a wide range of mental health conditions, including ADHD, anxiety, depression, and psychotic disorders. She strongly believes in prioritizing client involvement and fostering interprofessional collaboration.

Your mental health journey is unique, and Cassandra is here to listen with compassion and without judgment. All conversations are confidential, and her goal is to create a safe, welcoming space where you feel comfortable sharing your thoughts and concerns.

During your initial appointment, Cassandra will review your mental health history, current symptoms, lifestyle factors, and any previous treatments to gain a comprehensive understanding of your needs. Together, you will develop a personalized treatment plan that may include therapy, medication, or other supportive strategies. She values shared decision-making, ensuring your input is considered at every step of the process.

If medication is part of your treatment, Cassandra will clearly explain its benefits, potential side effects, and how your progress will be monitored. Adjustments can be made as needed to achieve the best possible outcome.

Healing takes time, and Cassandra is committed to supporting you throughout the process. Follow-up appointments are essential for tracking progress, making necessary adjustments, and ensuring you receive the care you need.

‍

Dr. Thomas Spina is an adult psychiatrist who began his practice at Talkiatry after completing his psychiatry residency at the Eastern Long Island branch of Stony Brook University, where he treated a diverse patient population. Dr. Spina received his undergraduate degree from St. John's University in Queens where he studied Philosophy. Initially interested in a career in law, Dr. Spina decided to change gears and pursue a career in medicine after watching a relative struggle with her diagnosis of Diabetes Mellitus. Dr. Spina then completed medical school at Tel Aviv University in Israel, where he fell in love with psychiatry during his clerkship at Ichilov medical center. During that rotation, he came to appreciate how each patient has his or her own unique story, regardless of their diagnosis. Dr. Spina favors a holistic and integrative approach to psychiatry, combining medication management with supportive therapy, elements of cognitive behavioral therapy, while remaining open to other treatment modalities depending on the needs of his patients. When more focused therapy is indicated, Dr. Spina may recommend that his patient work with a provider specializing in a particular modality of therapy as part of their treatment. Dr. Spina treats adult patients with mood disorders including major depressive disorder and bipolar disorder, anxiety spectrum disorders, OCD, PTSD and specific phobias. In his spare time, Dr. Spina enjoys a variety of hobbies, including Brazilian Jiu-Jitsu, running, baseball, and exploring new eateries and shops.

Dr. Sara Mateo holds the position of staff Psychiatrist at Talkiatry. She is a board-eligible adult Psychiatrist. Dr. Mateo completed her Medical degree at the University of Benghazi- Faculty of Medicine and finished General Psychiatry Residency training at Tower Health/DrexelPhoenixville Hospital. Throughout her career, Dr. Mateo has actively contributed to various leadership roles and committees, demonstrating her commitment to advancing medical education and promoting diversity in the field. During her training, she generously shared her knowledge through educational presentations and lectures, fostering the growth of fellow trainees and medical students. Dr. Mateo is dedicated to creating a therapeutic environment characterized by warmth, empathy, and nonjudgmental support. Her approach involves collaborating with patients to develop individualized treatment plans that consider cultural, biological, psychological, and social factors. With a primary focus on medication management, Dr. Mateo's keen interest in psychotherapy is evident, as she often integrates supportive therapy, cognitive behavioral therapy, and psychodynamic psychotherapy during 30-minute follow-up visits to optimize wellness and recovery. Dr. Mateo brings a wealth of experience in caring for individuals of diverse ages and backgrounds, adeptly addressing a wide spectrum of conditions. Her expertise extends to treating depressive disorders, bipolar disorders, anxiety disorders, trauma and stress related disorders, ADHD, OCD, Insomnia, psychotic disorders; she also has experience treating individuals with medical comorbidities.

Dr. Perington is a Staff Psychiatrist with Talkiatry. She previously served in the US Air Force, where she completed her residency training in psychiatry (Lackland AFB) and was the medical director for a small-sized mental health clinic (Hill AFB). Dr. Perington uses a person-centered approach to tailor treatment to the individual, with an emphasis on shared decision making. She prefers to focus on psychotherapy and behavioral interventions as a primary part of the treatment plan, in addition to any indicated medication.

Motivation for change is a large part of the healing process, and for many people recovery doesn't happen with medication alone. Dr. Perington asks all her patients to play an active role in their treatment.

A thorough diagnostic assessment with discussion of the best treatment setting and modality, then regular follow up visits with emphasis on psychotherapy in addition to medication management (if indicated).

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. Sumeet Singh is board-certified by the American Board of Psychiatry and Neurology in General Adult Psychiatry. He completed his psychiatry residency training at Howard University Hospital and Saint Elizabeth's Hospital in Washington, DC., where he was voted as Chief resident. He went on to serve as vice chair of the Department of Psychiatry at Adventist HealthCare in Maryland, where he worked in both an administrative and clinical role treating adults in inpatient settings. Additionally, he served as a Clinical Instructor of Psychiatry at Georgetown University School of Medicine, teaching medical students about the art of medicine. Dr. Singh received his undergraduate degree in Neuroscience from the University of Michigan and received his medical degree from Xavier University School of Medicine. Most recently, Dr. Singh worked for Life Stance Health, an outpatient telehealth company, where he treated patients between the ages of 18-65 years old with both medication management and therapeutic interventions. Dr. Singh has years of experience treating the following disorders/diagnoses: depression, anxiety and panic attacks, bipolar disorder, PTSD, ADHD, and OCD.‍