Nereida Gonzalez-Berrios, MD

Dr. Maria is a Board-Certified Adult Psychiatrist with specialized training in Child and Adolescent Psychiatry. She earned her medical degree from Andes University in Colombia, completed her Psychiatry Residency at The Wright Center in Scranton, Pennsylvania, and pursued further training through a Child and Adolescent Psychiatry fellowship at Louisiana State University in New Orleans.

Dr. Maria is deeply committed to providing kind, thoughtful, and inclusive care. She creates a warm, welcoming space where patients of all ages feel safe, listened to, and truly seen. Her approach blends evidence-based practices with compassion and patient collaboration. She works closely with each patient to understand their unique story and help them move toward meaningful, personal goals.

She takes time to build strong, trusting relationships and conducts thorough evaluations to understand each person’s experiences and needs. Her treatment often includes psycho-education, supportive therapy, and medication management—always shaped by what matters most to the patient.

Dr. Maria has experience treating a wide range of mental health conditions, including ADHD, PTSD, Depression, Anxiety, OCD, and Bipolar Disorder. She is especially passionate about supporting minority and marginalized communities, and she strives to ensure everyone feels valued and cared for.

Dr. Maria practices with a patient centered approach, focusing on each patients unique needs. She practices evidence based medicine with empathy, warmth and in a supportive, nonjudgmental environment.

It is important to Dr. Maria to build trust with patients, so they feel comfortable during their visits. She provides a thorough evaluation to understand symptoms, challenges and personal goals. Dr. Maria conducts visits that incorporate both medication management and psycho-education through supportive therapy. She works with her patients to set clear goals that align with their preferences.

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Dr. Jennifer Ruch is a board-certified psychiatrist who strives to understand her patients' lived experiences and aspirations to develop supportive therapeutic relationships through empathetic listening, mutual trust, and respect. She collaboratively creates individualized care plans that align with personal treatment goals in a safe and judgment-free environment. After completing her Bachelor of Science degree in Human Biology with a focus in psychology from the University of California, Merced, she earned her medical degree from Lake Erie College of Osteopathic Medicine. Dr. Ruch completed her General Psychiatry Residency at Arnot Ogden Medical Center in New York. Her clinical experience involves treating individuals of all age groups from diverse populations and socioeconomic backgrounds suffering from anxiety, depression, bipolar disorder, psychotic disorders, neurodevelopmental disorders, and neurocognitive disorders. She has provided care in inpatient and outpatient psychiatric facilities, the Veterans Affairs Medical Center, emergency rooms, state facilities, and an inpatient chemical dependency center. She also performed pre-procedure psychological evaluations for bariatric and spinal cord surgeries, and psychiatric consult liaison services on medical units and has clinical training in inpatient and outpatient neurology. Her clinical experience incorporated treatment modalities such as pharmacotherapy and interventional psychiatry, including Transcranial Magnetic Stimulation and Spravato. Dr. Ruch integrates a wide array of psychotherapy as needed; however, her practice primarily focuses on medication management while utilizing referrals to therapists and providing collaborative care for optimal outcomes.

Background and credentials

Dr. John Whittier is a board-certified psychiatrist. He earned his Bachelor of Arts in Molecular, Cellular, and Developmental Biology from the University of Colorado at Boulder and went on to obtain a master’s degree in Medical Science from Loyola University Chicago. He completed his medical training at the Robert Larner, M.D. College of Medicine at The University of Vermont and returned to Colorado for his psychiatry residency at the University of Colorado School of Medicine. While in residency, he specialized in the Psychotherapy Scholars Program and has since gained four years of experience treating psychiatric conditions through telehealth.

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Treatment approach

Dr. Whittier primarily focuses on medication management for general psychiatric conditions. His approach is individualized, ensuring that each patient receives a treatment plan tailored to their unique needs. He integrates supportive therapy, medications, and evidence-based alternative therapies to provide a flexible and comprehensive approach. In addition to his general practice, he maintains a psychodynamic psychotherapy panel where he helps patients explore developmental and relational patterns that contribute to their symptoms. His specialties include treating depression, anxiety, adjustment disorders, PTSD, insomnia, bipolar disorder, and ADHD.

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What you can expect in a first visit

During the first visit, patients can expect a one-hour comprehensive intake during which Dr. Whittier thoroughly evaluates their symptoms, medical history, and personal goals. He provides treatment options that prioritize flexibility, allowing patients to take an active role in their care. Follow-up visits typically last 20 to 30 minutes, focusing on assessing treatment progress and making necessary adjustments. For those engaged in psychodynamic psychotherapy, longer one-hour sessions are available for in-depth exploration of underlying psychological patterns.

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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. Shalin Shah earned his undergraduate degree from Northwestern University, his medical degree from Texas A&M University College of Medicine, and completed psychiatry residency at the University of Colorado Anschutz School of Medicine. He is ABPN certified in Psychiatry and completed a rigorous 3-year psychotherapy scholars track, gaining experience across multiple therapeutic modalities. During residency, he served as outpatient chief resident and was recognized with a selective service excellence and leadership award. Before medical school, he worked as a project manager for a large electronic health corporation.

Dr. Shah believes trust is the foundation of meaningful treatment. He aims to create a space where patients feel seen and supported yet thoughtfully challenged, using genuine curiosity, warm humor, humility, and a direct style. He collaborates with each patient to develop holistic, realistic treatment plans that may or may not include medication. His therapeutic work blends psychodynamic and humanistic approaches, with availability for a limited number of weekly psychotherapy patients.

In the first appointment, Dr. Shah explores each patient’s life story, asking detailed questions to understand them as a whole person. He then focuses on their immediate concerns and works collaboratively over time to refine a treatment plan that balances symptom relief with deeper, long-term healing. He thinks integrative and holistically, considering medical and mental health history, lifestyle, self-narrative, psychological structure, cultural and spiritual background, and broader societal influences.

Dr Jennifer Twing is a board-certified physician in Psychiatry. She completed her undergraduate studies in Neuroscience and Behavior at Vassar College in New York, medical education at Trinity College in Dublin, Ireland and Psychiatry Residency at the University of North Dakota in Fargo, ND. She has experience working in a variety of settings treating psychiatric conditions across the lifespan. She is also currently training to be certified in Psychedelic Assisted Psychotherapy.

Dr Twing has a warm approach to patient care, is easy to talk to and aims to cultivate a safe and comfortable atmosphere. She is empathetic and understanding, ensuring that her patients feel heard and are supported.

Her main focus is in treating anxiety, depressive disorders and trauma through medication management. She also integrates a holistic approach encompassing lifestyle, spiritual and nature-based healing practices to help reduce stress, improve mood, and enhance overall quality of life. She recommends that you work with a therapist or counselor as well to optimize treatment outcomes.

Dr. Krishna Divadeenam is a staff psychiatrist at Talkiatry. He trained in New York and earned his medical degree from Albany Medical College in 1997.  He finished his internship at Vanderbilt Medical Center and completed his psychiatric residency at the University of Kansas Medical Center in 2000. During his residency, he served as Chief Resident at the Kansas City VA Medical Center (KCVA).  His initial post-residency focus was with patients with serious and persistent mental illness (SPMI) when he worked at the Johnson County Mental Health Center.  He has served as a adjunct professor at the University of Kansas providing clinical supervision to residents and yearly lectures on Bipolar disorder, Tourette’s and Obsessive compulsive disorder for over 20 years.  He worked at Midwest Psychiatric associates in an outpatient private practice for nearly 3 years before returning to the KCVA.  There he oversaw care for combat veterans as a clinical psychiatrist and the supervisor for the PTSD Specialty outpatient clinic.  After 5 years he transitioned to the inpatient unit as the inpatient supervisor and one of the attending physicians of the acute inpatient psychiatric unit.  In addition, he served as the University of Kansas Site director for their psychiatric residency program.  

Dr. Divadeenam believes in a holistic approach to mental health treatment, integrating medication management, supportive psychotherapy, and collaboration with therapists and support staff. He tailors treatment to each patient's unique needs, ensuring a comprehensive and individualized approach to care. His expertise includes treating a variety of psychiatric diagnoses, such as mood disorders, anxiety disorders (including OCD), ADHD, and PTSD.

In a first visit, patients can expect a thorough evaluation, where Dr. Divadeenam takes the time to understand their medical history, symptoms, and treatment goals. He emphasizes open communication and collaborative decision-making, ensuring that patients feel heard and supported. Based on this initial assessment, he will develop a personalized treatment plan, which may include medication management and referrals to therapy or other supportive services as needed.