Jaime Sather, PMHNP

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.

***Provider does not prescribe controlled substances*** Dr. David Eiler is a staff psychiatrist at Talkiatry. He is board certified in adult psychiatry. Before joining Talkiatry, Dr. Eiler was a staff psychiatrist at Dartmouth-Hitchcock Medical Center (DHMC), where he had an academic appointment and served as clinical director of transcranial magnetic stimulation (TMS) and intranasal esketamine services. In his practice, Dr. Eiler has focused on medication management and interventional techniques, including TMS, for the treatment of depression and other disorders. Dr. Eiler received his MD from the University of Wisconsin School of Medicine and Public Health and completed his residency at DHMC.

Dr. Elizabeth Foote is a board-certified addiction and general psychiatrist practicing medicine for over 15 years.  

Dr. Elizabeth Foote focuses on providing integrated care for those with co-occurring disorders, depression, anxiety, obsessive-compulsive disorder, post-traumatic stress disorder and other forms of mental illness in the outpatient setting.  

She provides medication management as well as psychotherapy which includes drug and alcohol counseling, cognitive-behavioral therapy, psychodynamic psychotherapy, and cognitive processing therapy for trauma.  When combining these treatment approaches, patients receive more comprehensive mental health care.  Treatment begins with an initial assessment and a comprehensive treatment plan developed in coordination with the patient to best meet their needs.

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Dr. Carmen Orellana is a Staff Psychiatrist at Talkiatry who has been in practice for over 6 years, both in the U.S. and abroad. She is double board-certified in child and adolescent psychiatry and adult psychiatry. Dr. Orellana's practice focuses on medication management. She strives to provide exceptional medical care and has extensive experience in treating persons with diverse behavioral disorders and backgrounds. Dr.Orellana involves her patients in all decisions about their health, and provides care that is respectful of patient preferences, needs, and values. Typically, she would recommend evidence-based treatments to her patients and may, occasionally, believe that concurrent therapy is also needed. She would ask that you bring a therapist into your care team to provide the best outcome. Dr.Orellana received her medical degree from Universidad Evang�lica de El Salvador. Dr. Orellana completed a residency in Psychiatry and a fellowship in child and adolescent psychiatry at the Southern University School of Medicine in Springfield, Illinois. After completing her training, Dr. Orellana remained in the school, where she worked as an Assistant Professor of Child and Adolescent Psychiatry, supervising and teaching medical students, residents, and fellows, and treating patients with various psychiatric conditions. Dr. Orellana has experience in treating treatment-resistant mood disorders with electroconvulsive therapy (ECT) and transcranial magnetic stimulation (TMS).‍

Dr. Phelps is a board-eligible adult psychiatrist. She was elected chief resident by her residency program at the University of Central Florida. She obtained her medical degree at Nova Southeastern University. She graduated magna cum laude with a bachelor's degree in Kinesiology from Louisiana State University. Dr. Phelps believes in patient-centered care and a holistic approach to medicine. Her practice focuses on medication management, in conjunction with supportive therapy in 30-minute follow-up visits. If additional therapy is needed, she utilizes referrals to psychotherapists to enhance management of mental illness and provide the best treatment outcomes. Dr. Phelps has worked in a variety of medical settings with different patient populations, including outpatient, consult liaison, and inpatient psychiatry. Her primary focus is treating adults with depression, anxiety, ADHD, insomnia, and bipolar disorder. Dr. Phelps aims to build a strong therapeutic relationship and improve the quality of life of her patients.

Dr. Zac Keller, DO, DABPN (he/his), is a board-certified psychiatrist with experience across inpatient and outpatient settings. He has held leadership roles including Interim Medical Director and Director at Richard Young Hospital, where he also created and led the hospital’s ECT program. Dr. Keller’s clinical focus includes ADHD, PTSD, and personality disorders, and he brings an integrative lens to psychiatric care.

Dr. Keller takes a collaborative, supportive, and evidence-based approach to treatment. He values confidentiality, culturally sensitive care, and trauma-informed practice. Known for his warm yet direct communication style, he works to create a respectful, nonjudgmental environment where patients feel heard, understood, and actively involved in their care.

Care begins with a comprehensive intake that explores medical, psychiatric, social, and functional aspects of a patient’s life. Session length and frequency are tailored to individual needs. Treatment plans are developed collaboratively and may include medication management combined with talk therapy and other evidence-based interventions. Progress is reviewed regularly and adjusted based on ongoing dialogue.