Mu Xu, MD

Background and credentials

Dr. John Whittier is a board-certified psychiatrist. He earned his Bachelor of Arts in Molecular, Cellular, and Developmental Biology from the University of Colorado at Boulder and went on to obtain a master’s degree in Medical Science from Loyola University Chicago. He completed his medical training at the Robert Larner, M.D. College of Medicine at The University of Vermont and returned to Colorado for his psychiatry residency at the University of Colorado School of Medicine. While in residency, he specialized in the Psychotherapy Scholars Program and has since gained four years of experience treating psychiatric conditions through telehealth.

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Treatment approach

Dr. Whittier primarily focuses on medication management for general psychiatric conditions. His approach is individualized, ensuring that each patient receives a treatment plan tailored to their unique needs. He integrates supportive therapy, medications, and evidence-based alternative therapies to provide a flexible and comprehensive approach. In addition to his general practice, he maintains a psychodynamic psychotherapy panel where he helps patients explore developmental and relational patterns that contribute to their symptoms. His specialties include treating depression, anxiety, adjustment disorders, PTSD, insomnia, bipolar disorder, and ADHD.

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What you can expect in a first visit

During the first visit, patients can expect a one-hour comprehensive intake during which Dr. Whittier thoroughly evaluates their symptoms, medical history, and personal goals. He provides treatment options that prioritize flexibility, allowing patients to take an active role in their care. Follow-up visits typically last 20 to 30 minutes, focusing on assessing treatment progress and making necessary adjustments. For those engaged in psychodynamic psychotherapy, longer one-hour sessions are available for in-depth exploration of underlying psychological patterns.

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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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Dr. Ocean Workman, MD, has experience in outpatient, inpatient, and psychiatric emergency settings. They earned their medical degree from the University of Maryland School of Medicine and completed residency in psychiatry at the University of Washington, where they served as Outpatient Chief Resident and completed an area of distinction in psychotherapy. Dr. Workman also holds a Master of Science in Nutrition and Human Performance from Logan University and is a 500-hour Registered Yoga Teacher trained in Rishikesh, India. They have a special interest in serving LGBTQIA+, kink/sex-positive, and non-monogamous communities.

Dr. Workman’s style is warm, collaborative, and grounded in respect for each patient’s individuality. They combine evidence-based and personalized treatments that may include medication management, psychotherapy (ACT, DBT, CBT, psychodynamic, and supportive modalities), and holistic wellness approaches. Dr. Workman strives to create a safe, affirming space where patients can explore and grow in ways aligned with their values.

In the initial sessions, Dr. Workman conducts a comprehensive assessment of the patient’s goals, values, history, and concerns. Together, they develop a tailored treatment plan that reflects the patient’s unique needs, emphasizing shared decision-making and ongoing collaboration.

Dr. Emmalee Boyle is a board-certified adult psychiatrist who specializes in providing patient-centered care. She offers a mix of medication management in conjunction with supportive therapy in 30-minute follow-up visits. Dr. Boyle's areas of interest include treating mood disorders, anxiety disorders, and co-occurring substance use disorders. In addition, she enjoys helping the patient explore a holistic approach to their mental health treatment. Dr. Boyle received her medical degree from the Medical College of Wisconsin. She completed her general psychiatry residency training at Boston University Medical Center, where she was selected as co-chief resident. She also completed an additional post-graduate fellowship at the Massachusetts Institute of Psychoanalysis. During training, Dr. Boyle worked with an ethnically, culturally, and linguistically diverse patient population with various psychiatric illnesses and has experience navigating the many intersecting systems of mental health care. In addition, she worked with experts in the fields of psychosis and substance abuse. She also co-authored a book chapter on the immune system and psychiatric illness. Dr. Boyle also has particular clinical interests in immigrant and refugee health.

Dr. Sarah Ramos, MD, has experience practicing in a variety of outpatient settings, including community mental health and military care, serving active-duty service members, their families, and veterans. She earned her medical degree from Vanderbilt School of Medicine and completed psychiatry residency training at the University of California San Diego and Thomas Jefferson University in Philadelphia.

Dr. Ramos values open communication, privacy, and a collaborative approach with her patients. She creates a warm, supportive environment where individuals feel heard, respected, and empowered to participate in their care.

In initial sessions, Dr. Ramos thoroughly assesses patients’ history, concerns, and goals to ensure care is personalized and effective. She develops comprehensive treatment plans that align with each patient’s objectives, providing ongoing support to help them achieve meaningful outcomes.

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.

Julia Teytelbaum, MD, is a board-certified psychiatrist providing outpatient psychiatric care through telehealth. She earned her medical degree from the Florida State University College of Medicine and completed her psychiatry residency at UF Health Jacksonville, where she served as Chief Resident. She has experience working with adults facing mood disorders, anxiety, trauma-related concerns, ADHD, and perinatal mental health challenges.

Dr. Teytelbaum believes that feeling heard, understood, and respected is the foundation of effective mental health care. She takes a collaborative and supportive approach, helping patients set goals that feel realistic and meaningful. With a special interest in women’s mental health, including perinatal mood and anxiety disorders, she strives to create a calm, nonjudgmental space and approaches medication management thoughtfully, with close attention to patient preferences and well-being.

Dr. Teytelbaum begins with a comprehensive initial visit focused on understanding each patient’s history, concerns, and goals. She works collaboratively to develop an individualized treatment plan and checks in regularly about progress, side effects, and life changes. Her approach emphasizes continuity, clear communication, and steady support over time.