Nilesh Tannu, MD

Steven Warren, PMHNP, has over 25 years of psychiatric nursing experience in both inpatient and outpatient settings. He has provided extensive individual and group psychotherapy and education, and since 2017, has offered medication management and brief therapy in a collaborative community mental health setting. Steven earned his Bachelor of Nursing in 2011 and Master of Nursing in 2017 from Indiana University, and is ANCC board-certified as a Psychiatric Mental Health Nurse Practitioner.

Steven values open and honest communication, working directly with patients to set clear, achievable treatment goals. He is dedicated to ensuring each person he works with feels heard, respected, and supported throughout their mental health journey. His approach emphasizes collaboration, empathy, and trust.

During the first session, Steven takes time to understand each patient’s history, concerns, and goals. He develops individualized treatment plans that reflect patient values, adapting them as needs evolve. Through a strong therapeutic relationship, he provides guidance and support to help patients achieve meaningful and lasting progress.

Dr. Jonathan Hertz is board-certified in adult psychiatry. He completed fellowships in child and adolescent and public psychiatry and has been practicing psychiatry for over 18 years. Dr. Hertz's practice focuses on medication management which is offered with supportive and/or dynamic psychotherapy within 30-minute follow-up sessions. If patients have individual psychotherapists, Dr. Hertz will work collaboratively with these providers within a treatment-team approach to patient care delivery. Dr. Hertz received his medical degree from Tufts University School of Medicine in Boston. He remained in Boston to complete a residency in adult psychiatry at Cambridge Health Alliance and a fellowship in child and adolescent psychiatry at Children's Hospital Boston. Dr. Hertz subsequently returned to his hometown of NYC and completed a fellowship in public psychiatry. Dr. Hertz has clinical and administrative experience in the field of psychiatry. These positions include ACT Team community psychiatrist, director of adult outpatient clinic, and medical directorship in behavioral health within community hospitals. With training in child/adolescent, adult, and public psychiatry, Dr. Hertz has a developmental approach to mental health care. That is, he collaboratively explores the bio-psychosocial factors that may have influenced the development of mental disorders. Dr. Hertz believes an ecological approach enables a broader view of the multip

Amanda Rivera, PMHNP, is a board-certified Psychiatric Mental Health Nurse Practitioner through the lifespan, certified by the ANCC in 2020. She earned a Bachelor of Science in Psychology with a biology minor from Clarkson University, followed by a Bachelor of Science in Nursing and a Master of Science in Nursing from St. John Fisher College. Amanda has over 15 years of experience in mental health, beginning in 2010 as a Therapy Aide at Rochester Psychiatric Center. She has practiced across inpatient hospitals, state psychiatric facilities, outpatient community clinics, correctional settings, group homes, and telehealth/private practice. She works with patients ages 16 and older and is highly experienced in trauma, mood and anxiety disorders, ADHD, autism, psychotic and personality disorders, substance use, and parenting challenges. She values working with families to strengthen the family unit.

Amanda values open communication and collaborates with patients to establish clear, meaningful treatment goals. She provides a warm, supportive environment where patients feel heard, respected, and empowered to take ownership of their mental wellness. Treatment is individualized, with medication decisions guided by a careful balance of safety and symptom relief. Appointments are conversational in nature, allowing care to be more personalized as patients share openly.

Amanda begins each visit by ensuring privacy and safety, then explores the concerns prompting care before gathering a biopsychosocial history through collaborative discussion. She provides education throughout sessions to help patients understand diagnoses and lived experiences. Medication options are discussed based on comfort level and clinical need. Follow-ups are scheduled at the end of each visit, with frequency adjusted as stability is achieved.

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Dr. Sabrina Lefcochilos-Fogelquist earned her bachelor’s degree from Georgetown University and her medical degree from Sidney Kimmel Medical College at Thomas Jefferson University. She completed her psychiatry residency at the Icahn School of Medicine at Mount Sinai Morningside/West in New York City. She has experience in outpatient, inpatient, and emergency psychiatry, treating a broad spectrum of mental health conditions across diverse populations.

Dr. Lefcochilos-Fogelquist values compassionate, holistic care and strives to build long-term, collaborative relationships with her patients. She is particularly drawn to the outpatient setting, where she can engage with the evolving narratives of her patients’ lives. She creates a warm, supportive environment where individuals feel safe, respected, and heard.

Her process begins with a comprehensive evaluation to understand each patient’s history, concerns, and goals. Treatment plans are individualized and may include medication management and psychotherapy. She integrates supportive, cognitive behavioral, psychodynamic, and mindfulness-based techniques to meet patients' evolving needs.

Dr. Aidin Ashoori brings clinical experience from diverse settings including outpatient clinics, inpatient units, and emergency departments. He earned his medical degree from Columbia University College of Physicians & Surgeons and completed his psychiatry training at The University of North Carolina at Chapel Hill.

Dr. Ashoori works with individuals of all ages and cultural backgrounds. He has treated a wide range of conditions including depression, anxiety/OCD, bipolar disorder, trauma-related disorders, ADHD, and other psychiatric concerns. Outside of clinical practice, he is also a passionate musician who plays piano and composes music for media. Learn more at www.aidinashoori.com.

Dr. Ashoori uses a holistic, biopsychosocial approach tailored to each patient's unique background and needs. He integrates evidence-based pharmacotherapy with insight-oriented psychotherapy, aiming to foster self-awareness and long-term change. His patient-centered philosophy emphasizes a collaborative, respectful therapeutic alliance.

Background and credentials

Dr. Gerald Matthews is a board-certified adult psychiatrist. He earned his medical degree from the University of Louisville School of Medicine in Louisville, KY. Following medical school, he entered active duty service in the U.S. Army, where he completed his psychiatry residency at Tripler Army Medical Center in Honolulu, HI. After completing his training, he practiced as a staff psychiatrist at Fort Hood, TX, fulfilling his service obligation.

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Treatment approach

Dr. Matthews specializes in medication management, working primarily with adult patients in an outpatient setting. While his primary focus is pharmacological treatment, he frequently collaborates with therapists to provide comprehensive care when indicated. He has extensive experience treating civilians, active-duty military personnel, and veterans, addressing conditions such as mood and anxiety disorders, psychosis, and trauma-related disorders.

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What you can expect in a first visit

During the first visit, patients can expect a thorough psychiatric evaluation where Dr. Matthews takes time to understand their history, symptoms, and treatment goals. He provides a structured yet compassionate approach to care, discussing medication options and potential therapeutic interventions. For patients who may benefit from additional therapy, he collaborates with therapists to ensure a well-rounded treatment plan tailored to each individual's needs.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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