Jessica O'Mara, DO

For the past 20 years, Dr. Lavin has worked at the University of Denver Health and Counseling Center, where she has treated undergraduate and graduate students. She also worked at a training clinic for students pursuing their PsyD degree. She has supervised and taught psychiatry residents. She taught a psychopharmacology and differential diagnosis course to psychology trainees. Dr. Lavin has a strong interest in functional medicine and alternative therapies. Dr. Lavin has been in practice for 35 years. She is board certified in adult psychiatry. Dr. Lavin focuses on a comprehensive medical assessment, medication management, psychoeducation, wellness, and alternative therapies. She enjoys treating young adults. Dr. Lavin did her undergraduate work at the University of Rochester. She earned her MD from Cornell University Medical College in New York City. Her psychiatry residency was at the University of Boston Medical Center. After training, Dr. Lavin held administrative and clinical positions at Kaiser Permanente in Denver, CO and at the Harvard Community Health Plan in Braintree, Massachusetts. She has written clinical triaging guidelines and patient information pamphlets.‍

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.

Donna is a Board-Certified Psychiatric Nurse Practitioner dedicated to breaking down mental health stigma and expanding access to compassionate, quality care. With over 20 years of nurse practitioner experience, she has supported patients and families through life’s emotional and physical challenges across outpatient, inpatient, and telepsychiatry settings. Donna is passionate about creating a safe, empowering space where individuals feel seen, heard, and valued on their mental health journey.

Donna helps patients become the best, healthiest version of themselves, both mentally and emotionally. She values open communication, mutual respect, and collaborative decision-making. Her treatment plans include medication management, healthy coping strategies, and tools to build self-awareness and resilience. Known for her warmth and empathy, Donna creates a judgment-free environment where every voice matters.

Donna begins by building trust through a compassionate, in-depth initial interview. Together with each patient, she develops a personalized treatment plan that blends medication management with lifestyle recommendations tailored to individual goals and values. Her holistic approach focuses not just on symptom relief, but on fostering lasting growth, confidence, and overall well-being.

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Background and credentials

Dr. Joyln Ferrell is a board-certified psychiatrist with specialized training in treating depression and anxiety disorders. She earned her medical degree from Howard University College of Medicine and also holds a doctorate in pharmacy from the University of Georgia. She completed her residency training in psychiatry at VA Boston/Harvard Medical School and gained significant clinical experience at McLean Hospital. Additionally, she completed a fellowship in psychoanalytic psychotherapy at Columbia University Center for Psychoanalytic Training and Research.

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Treatment approach

Dr. Ferrell focuses on providing patient-centered care, emphasizing improving quality of life and helping patients reach their specific treatment goals. Her approach integrates medication management with supportive therapy. She believes in a collaborative treatment process and may recommend additional therapy support when necessary to optimize outcomes. She takes a cautious and limited approach to the use of controlled medications, ensuring responsible medication management.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive assessment of their symptoms, medical history, and treatment goals. Dr. Ferrell takes a thoughtful and individualized approach to care, working with patients to develop a treatment plan that incorporates medication management and supportive therapy. Follow-up visits typically last 20-30 minutes and focus on monitoring progress and adjusting treatment as needed. In some cases, she may recommend involving an additional therapist to further enhance the effectiveness of the treatment plan.

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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. Absar Tahir is an adult psychiatrist double-boarded in psychiatry and internal medicine who specializes in evidence-based, holistic, and individualized care. He graduated from the University of Alabama at Birmingham, where he earned both his undergraduate and medical degrees. Dr. Tahir completed sequential residency training in both internal medicine at the Mayo Clinic in Rochester, Minnesota, followed by psychiatry at Emory University in Atlanta, Georgia. Dr. Tahir integrates his knowledge of psychiatry and internal medicine to address the complex interplay between mental and physical health, ensuring a comprehensive and thoughtful approach to diagnosis and treatment. Throughout his career, he has helped patients from all walks of life, from diverse backgrounds, with a compassionate and empathetic treatment style. He strives to ensure his patients feel their voice is heard while working collaboratively towards achieving their treatment goals. As a psychiatrist, he specializes in the treatment of depression, anxiety disorders, bipolar disorder, obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), and attention-deficit/hyperactivity disorder (ADHD). He is also highly experienced in treating psychiatric problems in patients with medical comorbidities.

Dr. Niles Drake is a board certified psychiatrist skilled in prescribing medications and working in psychotherapy. He combines a warm demeanor with excellent clinical skills, and has over 15 years' experience working with adult patients of all ages and many walks of life. He has special expertise combining medication and psychotherapy to help patients reduce symptoms and grow as individuals. Dr. Drake's additional training and experience in psychological modes of treatment enhance the quality of care he provides to all his patients, to meet them where they are and prioritize their individual needs and goals. He also provides medication management-only treatments for people who aren't looking for psychotherapy or who already have therapists. Dr. Drake completed his psychiatric residency at Columbia University Medical Center in New York. He also completed psychoanalytic training at the Columbia Center for Psychoanalytic Training and Research. He went on to teach classes at the Center, educating candidates about the nuances of combining psychotherapy with other treatment modalities. In addition to providing outpatient psychiatric treatment for over 10 years in private practice, he has worked extensively in psychiatric emergency settings, supervising residents as attending physician at Columbia-New York Presbyterian Hospital and Long Island Jewish Hospital psychiatric emergency rooms. He also has special expertise treating college-aged and young adult patients, having served as staff psychiatrist at Barnard College's Furman Counseling Center and worked with many students from Barnard and Columbia in his private practice. Dr. Drake offers treatment for many psychiatric conditions, including but not limited to depression, anxiety disorders, bipolar disorder, ADHD, and personality disorders. He identifies helping people ease and overcome their psychiatric conditions as his calling, and approaches each patient with humility, diligence, and a collaborative spirit.