Derek Miller, LCSW

Dr. Jon-Kar Zubieta is a board-certified psychiatrist and nuclear medicine physician whose work bridges neuroscience and clinical care. He focuses on understanding how the brain regulates motivation and stress, applying this knowledge to mood disorders, pain, and substance use. With extensive experience in functional imaging, Dr. Zubieta explores how neurobiological mechanisms shape emotional and physical well-being.

Dr. Zubieta takes a collaborative and evidence-based approach to care. He values patient perspectives and prioritizes creating a supportive environment where patients feel heard. His goal is to tailor treatment plans that address both the psychological and biological aspects of mental health conditions.

Dr. Zubieta begins with a thorough assessment of each patient’s history, symptoms, and goals. He integrates clinical evaluation with insights from neuroscience and imaging research when relevant. Together with patients, he develops a personalized treatment plan that may include therapy, medication, or combined approaches, continually adjusting strategies to optimize outcomes.

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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Dr. Chelsea Karson is a board-certified psychiatrist who completed her residency training at Advocate Lutheran General Hospital where she was Chief Resident of her program. Dr. Karson is passionate about patient care, believing in caring for the whole person. While completing her residency training, she led an interprofessional team to bring miniature-therapy horses to the inpatient psychiatry unit and thereby forge a relationship between the organization and all of Advocate Aurora Healthcare. Dr. Karson partnered with a mental health counselor to create a virtual therapy program of resources, the Bridge Project, to close the gap between inpatient and outpatient care that is now used throughout the Advocate Aurora network. At graduation Dr. Karson received the 2024 Advocate Lutheran General Hospital Ruggie Humanitarian Award. The Ruggie Award selects and honors a graduating resident or fellow who displays academic excellence, commitment to the education of others, professional bearing, and a concern for the patient within the light of Human Ecology. Dr. Karson attended undergraduate at Elmhurst University, a biology major with minors in chemistry and medical humanities. She went to medical school at Rosalind Franklin University and was chosen to join the Gold Humanism Honor Society for her dedication to compassionate patient care.

Dr Mark Giordano is a board-certified psychiatrist with over ten years of experience in adult psychiatry, addiction medication, pregnancy and post-partum care, complex medical consultation, and military health. Dr G practices psychodynamic psychotherapy as well as evidenced based medication management. Dr G has extensive experience working with culturally diverse populations, and is an Army veteran who deployed to Korea and Afghanistan.

Patients often describe Dr G as caring, providing clear explanations, and responsive to concerns.   Dr G highly values his patients trusting him to listen and respect them, as well as in his clinicial skills.  He works hard at helping his patients understand his approach to treatment, and what is happening along the way and why. He may be the medical expert, but he and his patients are partners working together in the process of achieving better health and functionality for them so they can live their best lives.

Dr G starts by explaining his overall approach to medication management and his goal of helping his patients live a better life free of disability. He conducts a detailed evaluation of your concerns, your experiences, and your priorities in treatment.  Dr G develops a unique treatment plan based on your unique needs. He emphasizes positive developments over the course of your work together and makes sure you always have a chance to discuss any questions or concerns you want him to know and answer.

Dr. Sarah Benito Figueroa is a board-certified Adult Psychiatrist and a board-certified Child and Adolescent Psychiatrist. She earned her medical degree from the University of Puerto Rico Medical Sciences Campus.  She completed her Adult Psychiatry residency at the University of Connecticut. Following this, she sub-specialized in Child and Adolescent Psychiatry at New York University. Prior to joining Talkiatry, Dr. Benito Figueroa served as a Child and Adolescent Psychiatrist at a busy academic outpatient clinic and on an inpatient basis, providing care to children with complex medical needs.

Dr. Benito Figueroa strives to provide a patient-centered and collaborative approach when developing treatment plans. She specializes in medication management and supportive psychotherapy. When appropriate, she may make a referral for more specialized therapeutic interventions. For child and adolescent patients, Dr. Benito Figueroa encourages parental involvement at each visit to ensure a family centered approach is being followed to best support the child's needs.

During the first visit, Dr. Benito Figueroa will conduct a comprehensive psychiatric evaluation with a goal of understanding a patient's treatment history, current symptomatology and personal goals. She will work together with her patients to foster a collaborative environment, personalize treatment plans and support patients in achieving an improved quality of life.

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Background and credentials

Dr. Diane Lewis is board-certified in general psychiatry by the American Board of Psychiatry and Neurology. She earned both her undergraduate and medical degrees at Texas A&M University (College Station and Temple, TX) before completing her general psychiatry residency at UT Southwestern - Austin Programs (now Dell Medical School residency programs). After her residency, she practiced for eight years as a staff psychiatrist at the University of Texas' student counseling center. She also has experience working in hospital admissions and emergency department settings.

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Treatment approach

Dr. Lewis employs a medication-management-focused approach typically paired with supportive therapy during 30-minute follow-up visits. She strongly values a collaborative treatment approach, frequently encouraging patients to incorporate additional therapy for the best outcomes. Her primary specialty is college mental health, treating patients aged 18-45 with a range of mental health conditions from mild to complex. Dr. Lewis emphasizes authenticity, compassion, and recognizing patients beyond their diagnoses, providing care tailored to individual circumstances and goals.

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What you can expect in a first visit

During a first visit, patients can expect Dr. Lewis to conduct a thorough evaluation, carefully listening to their concerns, and considering their symptoms within the broader context of their lives. Her patients appreciate her down-to-earth and compassionate communication style. She aims to create an environment where patients feel understood, respected, and actively involved in shaping their personalized treatment plan, often recommending additional therapy support when beneficial for achieving optimal outcomes.

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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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