Maria Carvajal Ramirez, MD

Kacey Peterson is a Licensed Mental Health Counselor with Diagnostic Privilege in New York and Florida, where she also serves as a Telehealth Provider. She is a Nationally Certified Counselor and earned her Bachelor’s degree in Psychology and Sociology from Florida Atlantic University before completing her Master’s in Clinical Mental Health Counseling at Long Island University.

Kacey has experience supporting individuals in residential, crisis, and outpatient settings, helping those managing anxiety, depression, PTSD, low self-esteem, adjustment issues, and relational challenges. She draws on Cognitive Behavioral, Person-Centered, and Trauma-Informed approaches to ensure care is tailored to each individual’s unique needs and goals.

Kacey’s process centers on creating a safe, supportive, and healing environment where collaboration is key. She works alongside individuals to navigate emotions, explore strengths, and focus on personal goals. With compassion and guidance, Kacey helps her patients uncover resilience, foster growth, and move toward lasting healing and meaningful change.

Dr. Sharon Kahler is Board Certified in Adult and Child & Adolescent Psychiatry and treats patients of all ages. She has over a decade of experience in both community mental health centers and private practice, working with individuals from diverse backgrounds. She earned her medical degree from New York Medical College, completed Adult Psychiatry Residency at New York-Presbyterian/Weill Cornell, and completed Child and Adolescent Fellowship training at NYU Langone and Bellevue Hospital. Her clinical interests include mood and anxiety disorders, PTSD, and childhood psychiatric disorders.

Dr. Kahler is committed to providing compassionate, high-quality mental health care. She fosters a therapeutic, nonjudgmental environment where patients can openly share their concerns and values. Viewing treatment as a partnership, she encourages patients to play an active role in their care and takes a whole-person approach, considering lifestyle, environmental, and social factors that contribute to healing.

Dr. Kahler begins with a comprehensive assessment to understand each patient’s history, background, and treatment priorities. She develops individualized treatment plans using evidence-based approaches, supporting patients in navigating life’s challenges and finding a path to mental wellness.

Dr. Kristen Clark earned her medical degree from Jefferson Medical College and completed her psychiatry residency at Rutgers Robert Wood Johnson. She has extensive experience practicing primarily in outpatient settings, along with additional experience in inpatient, consultation, and emergency psychiatry. Dr. Clark is licensed in Indiana, New Jersey, and New York. She has also served in academic roles, teaching and mentoring trainees in both medical school and residency. She is board-certified in Psychiatry and in Addiction Medicine.

Dr. Clark prioritizes creating a welcoming environment where patients feel comfortable sharing their experiences. She values building strong rapport and approaches care holistically, recognizing that each patient is unique and deserves an individualized treatment plan. She appreciates the ongoing nature of outpatient care and adapts her approach as patients’ goals and priorities evolve over time.

Dr. Clark takes a collaborative approach to treatment, working closely with patients to ensure their understanding of all available options. She empowers patients to make informed choices and partners with them to develop plans that best align with their needs, values, and goals for treatment.

Dr. Sahadevan took an adventurous path to Talkiatry. After perhaps thinking a little too hard about Intro to Philosophy in college - "the unexamined life is not worth living” - he first used his chemistry degree to work in pharmaceutical research. He changed course, working in computer network engineering, before deciding to find a more meaningful path. He worked as an EMT, then earned a Master's in Physiology before finally landing in medical school at Ohio State. Finding a surprising interest in psychiatry, he stayed at Ohio State for residency, and then a fellowship in forensic psychiatry. He is board-certified in both Psychiatry and Forensic Psychiatry. He previously worked as a forensic psychiatrist and evaluator at Ohio's maximum-security state psychiatric facility, as an attending psychiatrist running an inpatient unit for violent or dangerous patients, performing court-ordered evaluations, writing reports, and testifying when necessary. Dr. Sahadevan has also worked as a consultation-liaison psychiatrist, performing psychiatric consults at several general hospitals in Central Ohio's largest hospital system. He found great enjoyment in teaching successive generations of residents and medical students, serving as an adjunct faculty member at Ohio State, Ohio University, Wright State, and OhioHealth Riverside Methodist Hospital. He is excited for the next chapter of his journey, exploring another area of psychiatry at Talkiatry!

Dr. Molly Fels is a board-certified psychiatrist. She completed her undergraduate education at Barnard College followed by medical school at Rutgers-Robert Wood Johnson Medical School. Dr Fels then completed her psychiatry residency training at Mount Sinai Beth Israel. She has previously worked in the Mount Sinai health system in the psychiatric emergency department and inpatient psychiatric unit. Dr. Fels has an interest in treating patients with a wide variety of psychiatric disorders including depression, anxiety, ADHD, and in working with patients who have experienced trauma. She believes in addressing holistic and lifestyle factors with her patients, including nutrition and sleep, in addition to pharmacology. Dr. Fels combines medication management and supportive psychotherapy to provide well-rounded and comprehensive care to her patients and prioritizes involving patients actively in each step of their psychiatric treatment.

Dr. Richard Mullin brings over a decade of experience in outpatient psychiatric care, with prior roles providing treatment to juveniles in detention and adults in jail and prison systems across West Virginia. He completed his medical degree at the Joan C. Edwards School of Medicine at Marshall University and trained in psychiatry and child and adolescent psychiatry at West Virginia University. Dr. Mullin emphasizes the importance of truly listening, so patients feel seen and heard.

Dr. Mullin works collaboratively with his patients to identify their main concerns and to build a treatment plan that feels right for them. He believes treatment should be a shared process in which the patient is empowered and supported in their mental health journey.

Taking a "less is more" approach to medication, Dr. Mullin focuses on minimizing prescriptions while still addressing all of a patient’s needs. His goal is to help patients eventually rely more on therapeutic skills than medication. He views treatment as a partnership—balancing his expertise in psychiatry with each patient's lived experience.

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