JinGu Lee, DO

Donna Duggan, LMHC, earned her Bachelor of Science in Criminal Justice from the University of Massachusetts and a Master’s Degree in Clinical Counseling from Walden University. Her professional journey began in law enforcement, later leading to education and mental health advocacy. Donna’s work as a crisis advocate for survivors of sexual assault and domestic abuse inspired her to pursue counseling full time. Since earning her graduate degree in 2015, she has worked extensively with children, families, and adults, specializing in trauma recovery and empowerment.

Donna values open communication and believes in creating a warm, supportive environment where patients feel respected and understood. With over fifteen years of experience helping individuals heal from trauma, she views the therapeutic process as an opportunity for patients to reclaim their voices and move from “victim to survivor” on their own terms. Patients can expect empathy, collaboration, and a strong sense of safety in her care.

Donna begins each therapeutic relationship by establishing trust and safety, encouraging honest dialogue around personal and family challenges. She integrates education, reflection, and resource sharing on topics like communication and conflict resolution. Together with patients, she develops personalized short- and long-term goals rooted in their individual and cultural values, ensuring therapy supports meaningful and lasting growth.

Background and credentials    

Dr. Alexander Wittenberg is a board-certified adult psychiatrist. He received his undergraduate degree from Cornell University, majoring in Human Biology, Health, and Society. He earned his medical degree from the New York Institute of Technology College of Osteopathic Medicine, where he was a  member of the Psi Sigma Alpha Osteopathic Honor Society. As chief resident at  Mount Sinai Beth Israel, he gained extensive experience working in outpatient  settings and managing patient care at one of New York City's busiest clinics. Dr. Wittenberg has expertise in treating a wide range of mental health conditions, including depressive disorders, anxiety disorders, bipolar disorder, trauma and stressor-related disorders, and OCD.    

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Treatment approach    

Dr. Wittenberg offers highly individualized and empathic treatment, primarily focusing on medication management. He frequently recommends integrating therapy into treatment plans and may suggest collaborating with a therapist. Dr. Wittenberg prioritizes a holistic approach, emphasizing overall well-being alongside symptom relief. He encourages the incorporation of mindfulness, self-compassion, exercise, nutrition, and attention to interpersonal relationships into his treatment strategy.    

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What you can expect in a first visit    

During an initial visit with Dr. Wittenberg, patients can anticipate a collaborative, patient-centered, and non-judgmental environment designed to foster a meaningful therapeutic relationship. He will thoroughly discuss individual concerns and treatment goals, exploring potential therapeutic interventions, including medication management and holistic strategies to support mental health and overall wellness.

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.

Dr. Candice Hacker is a board-certified Psychiatrist at Talkiatry. She completed her Psychiatry residency and a fellowship in Consultation Liaison Psychiatry at Mount Sinai/St. Luke's Hospital. She is passionate about a holistic approach to patient care, trained in psychosomatic medicine, and she has a deep appreciation for the intricate connection between the mind and body. With over 20 years of experience, Dr. Hacker has facilitated excellent outcomes in the treatment of various mental health conditions, including anxiety disorders, mood disorders, and trauma-related conditions. Dr. Hacker believes in creating a safe, nurturing and non-judgmental environment where patients can openly explore their emotions and experiences. By integrating evidence-based psycho-pharmacological modalities with mindfulness and cognitive-behavioral techniques, she empowers her patients to challenge a negative mindset and reach their goals. Beyond her clinical practice, Dr. Hacker is deeply committed to community mental health advocacy and the destigmatization of mental illness.

Dr. Rania Elkhatib is a board-certified general psychiatrist with extensive experience in clinical care, teaching, and research. She earned her medical degree from the University of Texas Medical Branch in Galveston and completed her psychiatry residency at UTHealth Science Center in Houston, where she later served as an Assistant Clinical Professor. During that appointment, Dr. Elkhatib was heavily involved in medical education and has developed courses in cultural psychiatry and psychiatry boot camps for medical students.

Dr. Elkhatib specializes in treating a wide range of psychiatric conditions, including Major Depressive Disorder, Anxiety Disorders, Bipolar Disorder, OCD, ADHD, and PTSD. Dr. Elkhatib focuses on evidence-based medication management but will also incorporate supportive therapy and cognitive-behavioral techniques to optimize treatment management and patient’s wellness. She is fluent in Arabic and English and has a strong interest in working with diverse patient populations.

Dr. Elkhatib has a holistic approach with focus on medication management while incorporating supportive therapy and cognitive-behavioral techniques to optimize patient wellness.

Dr. Anantharam Peesapati is a board-certified adult psychiatrist who graduated from General Psychiatry Residency training at Rutgers Robert Wood Johnson Medical School. There, he honed his skills by treating a diverse patient population suffering from various diagnoses, including major depression, bipolar disorder, anxiety disorders, PTSD, ADHD, and substance use disorders. Prior to residency, Dr. Peesapati earned his medical degree from Florida Atlantic University Charles E. Schmidt College of Medicine & his bachelor's degree in Psychology with a specialization in Behavioral & Cognitive Neuroscience from the University of Florida. Dr. Peesapati is committed to providing comprehensive care to his patients, with a focus on medication management & psychoeducation, as well as supportive psychotherapy and cognitive-behavioral therapy. His approach is guided by psychodynamic principles and steeped in mindfulness, ensuring a holistic and personalized treatment plan for each individual. Dr. Peesapati's goal is to help every patient achieve their best mental health and well-being, which may include collaboration with a therapist while also considering the impact of lifestyle on their health.

With over two decades in the counseling field, Greta Hicks-Brooks, LPC, is a seasoned and devoted professional at Talkiatry. Earned her most recent licensure credential, and the one recognized in California is Licensed Professional Clinical Counselor (LPCC). Her background includes roles as a Special Education Teacher, Psychology Instructor, Executive Director, Lead Therapist at an outpatient drug treatment facility, Vocational Rehabilitation Counselor, and Disability Services Counselor.

Greta holds a BA in Psychology from Tuskegee University, an MS in Counseling & Human Development from Troy University, and an MEd in Rehabilitation Counseling from Auburn University. She is licensed in Texas, Colorado, California, and Arizona, and is also a Certified Rehabilitation Counselor (CRC).

Highly structured yet comical, Greta creates a nonjudgmental environment where patients feel comfortable being themselves. Each month, she helps patients set three short-term goals, reflect on accomplishments, and note things they are grateful for—supporting growth, self-awareness, and emotional balance.

During the first session, Greta discusses the reasons for seeking therapy, preferred treatment approaches, and session frequency. She provides homework and clear follow-up focus points, drawing from Client-Centered, Cognitive Behavioral, Dialectical Behavior, Motivational Interviewing, Solution-Focused, and Trauma-Focused therapies. Greta meets clients where they are, fully committed to guiding those ready to make meaningful, lasting change.