Margaret Ngumi, PMHNP

Dr. Dhaliwal is an integrative psychiatrist with an MPH, a 1-year fellowship through Psychiatry Redefined, as well in intensive inpatient and outpatient training. A Boston University School of Medicine graduate and former Chief Resident at FAU, she blends research-based care, emotional insight, and life optimization. She treats depression, bipolar, anxiety, ADHD, PTSD, substance use, and psychotic-spectrum disorders with a holistic, results-driven approach.

Dr. Dhaliwal works with individuals who feel stuck—functioning on the outside but "not like myself" inside. Her warm, structured, and research-driven approach combines medication when needed with integrative tools such as CBT, lifestyle changes, "24-hour approach", and a bio-psycho-social-spiritual lens. She focuses on root causes and helps individuals gain clarity, momentum, and purpose to function at their highest level across home, career, and life.

Dr. Dhaliwal begins with a 360-degree assessment exploring emotional patterns, routine, physical health, neurobiology, and values. Her 24-hour optimization model supports intentional living, clarity, and structure. She fine-tunes medications and augments with an integrative tools to enhance mood, resilience, and wellbeing. Her care is shaped by years in psychiatry and over a decade of coaching future physicians, researchers, and life coaches to reach their highest academic and career potential.

Dr. Ocean Workman, MD, has experience in outpatient, inpatient, and psychiatric emergency settings. They earned their medical degree from the University of Maryland School of Medicine and completed residency in psychiatry at the University of Washington, where they served as Outpatient Chief Resident and completed an area of distinction in psychotherapy. Dr. Workman also holds a Master of Science in Nutrition and Human Performance from Logan University and is a 500-hour Registered Yoga Teacher trained in Rishikesh, India. They have a special interest in serving LGBTQIA+, kink/sex-positive, and non-monogamous communities.

Dr. Workman’s style is warm, collaborative, and grounded in respect for each patient’s individuality. They combine evidence-based and personalized treatments that may include medication management, psychotherapy (ACT, DBT, CBT, psychodynamic, and supportive modalities), and holistic wellness approaches. Dr. Workman strives to create a safe, affirming space where patients can explore and grow in ways aligned with their values.

In the initial sessions, Dr. Workman conducts a comprehensive assessment of the patient’s goals, values, history, and concerns. Together, they develop a tailored treatment plan that reflects the patient’s unique needs, emphasizing shared decision-making and ongoing collaboration.

Dr. Kristina Kurtz is a board-certified adult psychiatrist who graduated from Lake Erie College of Osteopathic Medicine in Erie, Pennsylvania. She completed a Transitional Internship at St. Joseph Mercy Hospital Oakland in Pontiac, Michigan, and Psychiatry Residency training at Henry Ford Health System in Detroit, Michigan. During her residency training, she held multiple professional leadership positions, including ethics committee consultant, associate chief resident, and chief resident. She has experience developing residency curriculum, and teaching psychiatry residents and medical students. Prior to relocating to Colorado Springs, Dr. Kurtz served as the Adult Inpatient Service Chief at Henry Ford Kingswood Hospital. She joined Talkiatry after serving as the Medical Director of Behavioral Health at UCHealth Memorial Hospital as well as Regional Medical Director for Colorado for Lifestance Health. Dr. Kurtz is passionate about providing holistic, evidence-based care to both adults and geriatric patients. She believes in providing a well-rounded approach to care which includes both medication management as well as psychodynamic psychotherapy and supportive therapy for a wide variety of disorders including depression, anxiety, PTSD, ADHD, substance use disorders, and bipolar disorder. She believes that medication management is most effective when an environment of shared decision-making exists between the prescriber and the patient and tailors her approach to meet each individual patient's needs.

Dr. Cyndia Choi has been board certified in psychiatry since 1991. She has 30 years of experience treating a diverse population of cultures, LGBTQ issues, and different age groups from young adults to seniors. After attending Johns Hopkins University in Baltimore for her bachelor's degree, Dr. Choi received her medical degree from The University of Medicine and Dentistry of New Jersey at Rutgers Medical School. She went on to complete a general medical internship at Hahnemann University Hospital in Philadelphia and then her Psychiatric residency at the University of Pennsylvania .Dr. Choi has treated patients who have had a broad spectrum of diagnoses including major depressive disorder, post-traumatic stress, bipolar disorder, OCD, panic and anxiety, and addiction. Although the majority of her work has been in outpatient care, Dr. Choi has worked in emergency settings, inpatient units, and as a consultation-liaison to medical units. She has also enjoyed the honor of working with US military veterans. Dr. Choi's specialty is medication management, however, she believes that a therapeutic relationship is crucial to treatment. Dr. Choi values the privilege of getting to know each patient personally to develop a patient-centered plan of care.‍Typical follow-up appointments with Dr. Choi are 30 minutes in length to check on medication effects and for supportive therapy. If she believes that you may benefit from more in-depth therapy, she may recommend adding a therapist to your treatment team. Dr. Choi also believes in a holistic approach toward helping you achieve a healthy and fulfilling quality of life.

Dr Marc Whaley is a Board Certified Psychiatrist in Adult Psychiatry, with extensive clinical experience over the past 50 years, mostly in outpatient treatment, and some in-patient settings, in addition to Forensic (legal) ones. He received his undergraduate degree at Johns Hopkins in Baltimore and his medical degree at Tufts Medical School in Boston, and then went on to train at Tufts New England Medical Center in Boston, for his psychiatry residency. He has held leadership roles, Chief of Department of Psychiatry in a community hospital, President of the local Psychiatric Chapter of the Massachusetts Psychiatric Society, and founder of a private group outpatient psychiatric practice on Cape Cod called The Psychiatric Collaborative. In 2018, he closed his private practice, seeking more free time in the later years. It did not take long, however, to get back to active practice, first by reviewing files for insurers around the issue of medical necessity, disability, and other psychiatric determinations. He got his first experience in Telepsychiatry when working remotely for a community hospital, far from his home, evaluating patients presenting to their busy ER; He experienced this as a practical and efficient way of delivering psychiatric services. When that contract ended after 3.5 years, he learned about and joined Talkiatry to work as a Staff Psychiatrist, in their well-organized comprehensive program. Dr. Whaley has been recognized by his peers for his career achievement, and he was the 2022 recipient of the Outstanding Psychiatrist Award for Clinical Psychiatry from the MA Psychiatric Society. He has also been a regular panel member, over the past 13 years, for a monthly NPR Radio Talk Show, ( WGBH Cape Cod affiliate, WCAI), The Point with Mindy Todd, focusing on multiple mental health topics.

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