Alexandra Baluna, MD

Dr. James “Jim” Staudenmeier is a physician with a distinguished career in military and civilian psychiatry. A retired Colonel in the U.S. Army, he has served as a plenary and invited speaker at national and international conferences on topics including addiction, electroconvulsive therapy, hypnotherapy, and quality improvement. He is a Certified Healthcare Executive, holds a master’s degree in preventive medicine and biometrics, and has published in peer-reviewed journals. His clinical background includes pain management, addiction psychiatry, child and adult psychiatry, and academic appointments at multiple universities.

Dr. Staudenmeier values collaboration and encourages patients to ask questions, clarify expectations, and identify their primary concerns from the start. While medication management is part of care, he emphasizes insight, goal setting, and skill building. He integrates hypnotherapy, guided imagery, relaxation, and meditation to support wellness, pain management, sleep, anxiety, and addiction, tailoring treatment to each patient’s needs.

Dr. Staudenmeier takes a flexible, whole-person approach, combining medication management with evidence-based therapies such as CBT, CPT, motivational interviewing, and family-based interventions. He works comfortably with children, adults, families, service members, Veterans, and individuals facing life transitions, including end-of-life concerns. His goal is to help patients develop practical tools for lasting mental, emotional, and spiritual well-being.

Dr. De Jesus is a bilingual psychiatrist, fluent in English and Spanish. She is a double board-certified psychiatrist in Adult Psychiatry and Child & Adolescent Psychiatry. Dr. De Jesus provides medication management services in combination with supportive therapy during 30-minute follow-up visits. Dr. De Jesus received her medical degree from the Universidad Central del Caribe School of Medicine in Bayamon, Puerto Rico. She completed her Adult Psychiatry residency at Jackson Memorial Hospital in Miami, FL. Subsequently, Dr. De Jesus pursued her fellowship in Child and Adolescent Psychiatry at Thomas Jefferson University Hospital in Pennsylvania and was a Chief Resident during her last year of training. Dr. De Jesus has been providing psychiatric services in the community mental health setting for 8 years. Her clinical focus has been in treating children, adolescents, and young adults with depression, anxiety, posttraumatic stress disorder, and ADHD. Dr. De Jesus believes in the importance of establishing an individualized treatment approach to meet each individual's need while providing comprehensive care to her patients.

Background and credentials

Dr. Gerald Matthews is a board-certified adult psychiatrist. He earned his medical degree from the University of Louisville School of Medicine in Louisville, KY. Following medical school, he entered active duty service in the U.S. Army, where he completed his psychiatry residency at Tripler Army Medical Center in Honolulu, HI. After completing his training, he practiced as a staff psychiatrist at Fort Hood, TX, fulfilling his service obligation.

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Treatment approach

Dr. Matthews specializes in medication management, working primarily with adult patients in an outpatient setting. While his primary focus is pharmacological treatment, he frequently collaborates with therapists to provide comprehensive care when indicated. He has extensive experience treating civilians, active-duty military personnel, and veterans, addressing conditions such as mood and anxiety disorders, psychosis, and trauma-related disorders.

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What you can expect in a first visit

During the first visit, patients can expect a thorough psychiatric evaluation where Dr. Matthews takes time to understand their history, symptoms, and treatment goals. He provides a structured yet compassionate approach to care, discussing medication options and potential therapeutic interventions. For patients who may benefit from additional therapy, he collaborates with therapists to ensure a well-rounded treatment plan tailored to each individual's needs.

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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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Belinda received her undergraduate education at the University of Tulsa and completed her nurse practitioner training at the University of Texas–Arlington, earning a Master of Science in Nursing. She is nationally board-certified in psychiatry across the lifespan and has over a decade of experience working in outpatient, residential, and inpatient care settings. She is skilled in medication management and utilizes therapeutic modalities such as CBT, DBT, ACT, and psychodynamic approaches.

Belinda is a passionate psychiatric nurse practitioner dedicated to continual development and lifelong learning. With over ten years of experience, she spent more than five years working in a residential eating disorders facility. She has evaluated and treated individuals with a wide range of diagnoses, including depression, anxiety, OCD, and PTSD. Belinda believes in addressing the whole person and thrives on helping people find individualized solutions. While she specializes in using medication when necessary to alleviate symptoms, she also incorporates therapeutic techniques into her sessions to help clients discover what works best for them.

She prioritizes the therapeutic relationship and supports patient-centered goals. Belinda empowers her clients to choose options that align with their lives and encourages active engagement in self-care. She is deeply committed to helping individuals improve their quality of life by identifying and addressing areas of struggle, such as depression or grief. Additionally, she supports clients in recognizing and overcoming fears by identifying stressors and developing new coping strategies. Her approach inspires clients to reduce stress and prioritize rest and sleep to enhance overall wellness—body, mind, and soul.

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Background  and credentials    

Dr. Christa DeFries is a board-certified Adult Psychiatrist. She earned her  medical degree from UT Southwestern Medical School in Dallas, Texas, and  completed her residency in Adult Psychiatry at Baylor Scott & White in  Temple, Texas. Following residency, Dr. DeFries gained additional experience  treating homeless and formerly homeless populations in New York City,  particularly focusing on individuals with histories of trauma and substance  addiction, prior to joining Talkiatry.    

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Treatment approach    

Dr. DeFries practices Adult Psychiatry, employing an integrative treatment  approach combining medication management, psychotherapeutic methods, and  lifestyle modifications. She recognizes that each patient benefits from a  personalized mix of these three aspects of care. Dr. DeFries specializes in  treating diverse psychiatric conditions, including those related to trauma,  substance addictions, and various mental health disorders.    

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What you can expect in a first visit    

In a first visit with Dr. DeFries, patients can expect a comprehensive  evaluation aimed at understanding their individual mental health history,  specific concerns, and overall treatment goals. Dr. DeFries emphasizes an  individualized approach, carefully exploring the best combination of  medication, therapy, and lifestyle adjustments tailored specifically to each  patient's needs. Patients can anticipate an empathetic and collaborative  environment focused on their personal experiences and goals.    

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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.

Dr. Jonathan Hertz is board-certified in adult psychiatry. He completed fellowships in child and adolescent and public psychiatry and has been practicing psychiatry for over 18 years. Dr. Hertz's practice focuses on medication management which is offered with supportive and/or dynamic psychotherapy within 30-minute follow-up sessions. If patients have individual psychotherapists, Dr. Hertz will work collaboratively with these providers within a treatment-team approach to patient care delivery. Dr. Hertz received his medical degree from Tufts University School of Medicine in Boston. He remained in Boston to complete a residency in adult psychiatry at Cambridge Health Alliance and a fellowship in child and adolescent psychiatry at Children's Hospital Boston. Dr. Hertz subsequently returned to his hometown of NYC and completed a fellowship in public psychiatry. Dr. Hertz has clinical and administrative experience in the field of psychiatry. These positions include ACT Team community psychiatrist, director of adult outpatient clinic, and medical directorship in behavioral health within community hospitals. With training in child/adolescent, adult, and public psychiatry, Dr. Hertz has a developmental approach to mental health care. That is, he collaboratively explores the bio-psychosocial factors that may have influenced the development of mental disorders. Dr. Hertz believes an ecological approach enables a broader view of the multip