Stephen Geisler, MD

Dr. Merna Guirguis is a general psychiatrist known for her patient-centered and accessible approach. She blends compassion with evidence-based care, creating a supportive environment where patients feel heard. Her practice integrates psychiatric medication management with psychoeducation, empowering patients to make informed decisions about their treatment.

Dr. Guirguis emphasizes collaboration and transparency. She listens carefully to each patient’s concerns, encourages questions, and works to build a trusting therapeutic relationship. Her style is approachable and adaptable, ensuring patients feel comfortable sharing their experiences and actively participating in their care.

She begins by reviewing each patient’s history, concerns, and goals to craft personalized treatment plans. Dr. Guirguis combines current clinical needs with long-term wellness objectives, adjusting care collaboratively over time. When appropriate, she may recommend additional therapy to complement medication management and optimize outcomes.

Getting to know meDr. Kishan Peddanna is a board-certified general psychiatrist with experience treating patients across the lifespan. He attended The Ohio State University for his undergraduate studies and earned his medical degree from the University of Cincinnati. Dr. Peddanna completed his residency in General Psychiatry at The Ohio State University and a fellowship in Child and Adolescent Psychiatry at Nationwide Children’s Hospital.

Dr. Peddanna values continuity of care and collaboration, working with patients toward long-term improvements while building meaningful connections. His approach is grounded in shared decision-making, ensuring treatment plans align with each patient’s goals. He has extensive experience managing conditions such as ADHD, mood disorders, and anxiety.

Dr. Peddanna’s practice focuses on medication management complemented by supportive psychotherapy. He uses evidence-based assessments and interventions to guide individualized treatment planning, fostering a care experience that is both effective and patient-centered.

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.

Dr. Atkins is a staff psychiatrist at Talkiatry. He is board-certified in adult psychiatry and has been in practice for the past 2 years. He has received several awards for teaching and the treatment of chronically ill patients, including Stony Brook University's "William Turner Award" for excellence in education and leadership. Dr. Atkins has focused his practice primarily on medication management. He combines medication management with a therapeutic style that is a blend of supportive therapy, cognitive behavioral therapy, and motivational interviewing. Follow‐up appointments with Dr. Atkins typically last 20‐30 minutes. While Dr. Atkins is trained in a variety of therapeutic techniques, he works collaboratively with therapists and may recommend their inclusion as part of your treatment team, depending on your individualized treatment plan .Dr. Atkins attended the University of Connecticut School of Medicine where he received his medical degree. He completed his psychiatry residency at Stony Brook University Hospital in New York. Post residency, he worked with general adult patients as well as older adults at Manchester Memorial Hospital where he served as both an outpatient psychiatrist and Director of the Geriatric Intensive Outpatient Program. Although Dr. Atkins does not treat child or adolescent patients, he has experience working with people of all ages, from young adults to adults. He has experience treating mood disorders, anxiety disorders, obsessive-compulsive disorder, patients in the perinatal period, and patients with co‐co-occurring substance use disorders. He has regularly managed behavioral problems in adults with autism spectrum disorders as well as dementia. He particularly enjoys working with patients dealing with life or role transitions, older adults, and patients with bipolar or other affective disorders.

Dr. Dopkin is a board-certified adult and child psychiatrist dedicated to helping patients feel well and stay well. A Long Island native, he earned his bachelor’s degree from Cornell University before attending St. George’s University School of Medicine. He completed his adult and child psychiatry training at Brown University. For over two decades, Dr. Dopkin has served New York City communities across Queens, Manhattan, and the Bronx, primarily within the public hospital system. He has held clinical, academic, and administrative leadership roles and has been recognized for his excellence in teaching and mentoring psychiatry residents. He also serves as Assistant Dean of Students for the U.S. clinical program at St. George’s University

Dr. Dopkin provides patient-centered care grounded in a biopsychosocial approach. He collaborates with each patient to tailor treatment plans that integrate evidence-based medication options with interpersonal and supportive therapy. He has worked with patients of all ages and backgrounds, including individuals from marginalized communities and those coping with trauma, depression, anxiety, and comorbid medical conditions.

With warmth and respect, Dr. Dopkin meets each patient where they are, helping them find the path that works best for their unique needs and goals.

Dr. Kodali is an adult psychiatrist who completed his psychiatry residency training at Trinity Health Hospital in Livonia, MI, where he was selected to be chief resident. Prior to this, he received his undergraduate bachelor’s degree in Neurology and Anthropology from Johns Hopkins University in Baltimore, MD and received his medical degree from Wayne State University in Detroit, MI. He completed the psychodynamic psychotherapy fellowship from the Michigan Psychoanalytic Institute and is adept at incorporating psychotherapy principles in all patient care encounters. He provides psychiatric medication management as well as a combination of therapeutic interventions such as supportive, cognitive behavioral therapy (CBT), psychodynamic, and lifestyle interventions. Dr. Kodali is trained in treating multiple disorders and diagnoses including depression, anxiety, bipolar disorder, panic attacks, obsessive compulsive disorder (OCD), attention deficit hyperactivity disorder (ADHD), and posttraumatic stress disorder (PTSD) as well as others. He has experience treating adult patients of all ages in multiple treatment settings including outpatient clinics, inpatient hospitals, and emergency departments.

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