Carmen Orellana Martinez, MD

Dr. Mark Sundahl is a board-certified adult psychiatrist. He was born and raised in the suburbs of Kansas City, Kansas. He has always been fascinated by the natural world and received a bachelor’s degree in biology at Kansas State University where he was active in a research lab investigating protein function in the human body. He completed medical school training and residency at the University of Kansas School of Medicine in Kansas City, Kansas along with Wichita, Kansas. Dr. Sundahl has experience working with a broad range of mental health symptoms and a diverse patient population

Dr. Mark Sundahl is a board-certified adult psychiatrist. He was born and raised in the suburbs of Kansas City, Kansas. He has always been fascinated by the natural world and received a bachelor’s degree in biology at Kansas State University where he was active in a research lab investigating protein function in the human body. He completed medical school training and residency at the University of Kansas School of Medicine in Kansas City, Kansas along with Wichita, Kansas. Dr. Sundahl has experience working with a broad range of mental health symptoms and a diverse patient population

Dr. Sundahl understands the importance of collaboration and the therapeutic alliance when working with patients. He will clearly explain his findings and discuss treatment options he feels are reasonable. Dr. Sundahl thinks it is important for patients to have all the necessary information to make informed decisions when it comes to their psychiatric treatment.

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Dr. Harmeeta Singh was born and raised in St. Louis, MO and is board certified with ABPN (American Board of Psychiatry & Neurology). Dr. Singh has been in practice for 15 years and focuses on an individualized treatment plan, not only using pharmacotherapy when needed, but also implementing insight-oriented, supportive, motivational, and brief psychotherapy. Dr. Singh is a firm believer in combining psychotherapy with medication management when warranted to manage and treat a wide variety of mental health conditions including, but not limited to - Depressive Disorders, Bipolar Disorders, Psychotic Disorders, Anxiety Disorders, Trauma related disorders, Substance use disorders, Personality disorders, Sleep Disorders and Eating Disorders. Her dynamic approach is client focused, involving the client throughout their treatment and care plan, taking careful consideration to the individual's needs and goals. ‍Upon completion of her residency through St. Louis University, St.Louis, Dr. Singh joined her parents' Internal Medicine practice. She learned firsthand that implementing mental health awareness, screening, and education into a primary medically focused practice led to more favorable outcomes. Many mental health conditions can manifest as and/or exacerbate a variety of medical/physical conditions and thereby go undiagnosed and untreated. Dr. Singh has worked closely and coordinated care within the medical field and with other specialists in treating and diagnosing comorbid mental health conditions. While in private practice for over 10 years, she was also an attending and consultant for inpatient mental health care and provided mental health services for residents in various residential care facilities, group homes, and skilled nursing facilities. Over the past 5 years she has consolidated her practice and presently is employed with Compass Health Network in Missouri helping bridge the gap in mental health care by coordinating and providing care to the underserved community.

Dr. Hajer Ben Cheikh earned her medical degree from Eastern Virginia Medical School, where she worked with refugee populations and participated in global health initiatives. She completed her psychiatry residency at MedStar Georgetown University Hospital, serving as inpatient chief resident. Dr. Ben Cheikh has experience across the full continuum of psychiatric care, including higher levels of care, collaborative care, and outpatient settings. She has a particular interest in perinatal mental health.

Dr. Ben Cheikh values open communication, transparency, and collaboration, and takes a friendly, supportive approach to patient care. She practices evidence-based medicine with a thoughtful, minimalist approach to pharmacologic treatment, often favoring single agents that can address multiple concerns when clinically appropriate.

Her approach to care is holistic, integrating psychiatric diagnoses, comorbid conditions, social context, and lifestyle factors. Sessions include supportive psychotherapy, incorporating techniques from other modalities such as cognitive behavioral therapy (CBT), and psychodynamic approaches as appropriate. Initial visits emphasize diagnostic clarity and collaborative goal-setting, while follow-up sessions focus on patient priorities, shared decision-making, and personalized strategies that support meaningful, sustainable progress.

Background and credentials

Dr. Ian Goldberg is a board-certified adult and child/adolescent psychiatrist and a licensed physician in New York state. He has been practicing since 1988 and has extensive experience working with patients in private practice, hospital settings, and community-based mental health programs. His professional career has included work both in and outside of the United States.

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Treatment approach

Dr. Goldberg takes an eclectic approach to psychiatric care, integrating various treatment modalities, including psychodynamic perspectives and medication management. His focus is on improving his patients' overall quality of life by tailoring treatment strategies to their unique needs.

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What you can expect in a first visit

During the initial visit, patients can expect a comprehensive and individualized evaluation. Dr. Goldberg values collaboration and strives to create a treatment plan that is both effective and adaptable. His experience allows him to approach each case with insight and flexibility, ensuring that patients receive care that is aligned with their personal goals and circumstances.

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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. Alexandre is a board-certified psychiatrist who completed his psychiatry training both in Brazil and in the United States, where he served as Chief Resident in both programs. He is fluent in both English and Portuguese and is especially attuned to the unique challenges faced by international and immigrant populations. Dr. Alexandre is passionate about helping patients achieve meaningful and sustained improvements in their mental health.

He brings over a decade of experience in mental health care and has a strong foundation in evidence-based treatment. His clinical interests include mood and anxiety disorders, ADHD, and cross-cultural psychiatry.

Dr. Alexandre incorporates a collaborative and compassionate approach to care, combining medication management with elements of cognitive behavioral therapy, behavioral activation, and interpersonal strategies when appropriate.

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Dr. Adeola Mustapha is a board-certified psychiatrist with experience across outpatient, inpatient, and community mental health settings. She completed her psychiatry residency at Indiana University School of Medicine – Vincennes in July 2024 after earning her medical degree from Ross University School of Medicine. Recognized for her exceptional psychotherapy skills, Dr. Mustapha received therapy awards in both her PGY3 and PGY4 years. Her background reflects a commitment to blending strong clinical training with compassionate, patient-focused care.

Dr. Mustapha creates a warm, collaborative, and supportive environment where patients feel respected and understood. She believes in the power of psychotherapy combined with evidence-based psychiatric care, always striving to integrate both in treatment. Open communication and clear, realistic goal setting are central to her approach. She is committed to a holistic perspective that considers emotional, physical, cultural, and social well-being. With an emphasis on empowerment, Dr. Mustapha encourages patients to take an active role in their healing journey.

Dr. Mustapha begins with a comprehensive evaluation to learn each patient’s history, concerns, and goals. She develops individualized treatment plans that may integrate therapy modalities such as CBT, DBT, TF-CBT, psychoanalysis, and FETI, along with medication management when appropriate. Using a goal-oriented, step-by-step process, she tracks progress and adapts treatment as needs evolve. Through ongoing dialogue, she ensures patients feel supported, informed, and engaged throughout their care. Her aim is to foster long-term resilience and overall wellness, not just symptom relief.