Jeffrey Seley, 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. Yaejin Park is a board-certified adult psychiatrist at Talkiatry. She received her medical degree from the University of Illinois at Chicago School of Medicine and completed her psychiatry residency training at Mount Sinai Morningside West.

Dr. Park has professional interests in treating a wide range of psychiatric conditions including depression, anxiety, PTSD, and eating disorders.  She strives to provide compassionate and holistic care with the integration of supportive psychotherapy and medication management.

Dr Cardiel- Sam is Board Certified in both General Psychiatry and Child and Adolescent Psychiatry. He completed undergraduate training at University of Miami followed by medical school at St. Georges University. He has completed Residency in Psychiatry at Bergen New Bridge Medical Center and fellowship training for Child and Adolescent Psychiatry at Penn State University.  

His training in Child and Adolescent Psychiatry has given him a unique perspective on mental illness. He has found that these conditions rarely start in adulthood, but rather, are a product of multiple factors and years of lived experience. For this reason, Dr Cardiel- Sam approaches his patients through a trauma informed lens; an acknowledgement of the unique story and challenges that each individual has faced. He is comfortable treating a wide variety of psychiatric conditions including depression, anxiety, bipolar disorder, ADHD and many more.

Working with Dr Cardiel- Sam, you can expect holistic and collaborative psychiatric treatment. He believes that medication along with therapeutic treatment should fit seamlessly into a patient’s life, with minimal inconvenience. He strives to empower patients in shared medical decision making, making time to explain risks/benefits and alternatives for treatment.

Dr. Thistlethwaite is a board eligible adult psychiatrist and internal medicine physician. He completed his medical education at West Virginia University School of Medicine. Following completion of medical school, Dr. Thistlethwaite completed residency training at WVU/Charleston Area Medical Center with a dual specialization in internal medicine and psychiatry. Dr. Thistlethwaite's training included treatment of patients both in the inpatient and outpatient setting as well as management of patients with comorbid medical conditions. During his training Dr. Thistlethwaite became passionate about approaching patients in a holistic manner that addressed both their physical and mental health. He is especially passionate about ensuring that patients with mental health disorders are provided with appropriate general medical care as they are a marginalized and underserved group. Dr. Thistlethwaite's practice focuses on medication management for a wide array of conditions including depression, anxiety disorders, bipolar disorder, obsessive compulsive disorder, tic disorder/Tourette's, and post traumatic stress disorder. Dr. Thistlethwaite incorporates supportive psychotherapy, cognitive behavioral therapy interventions, and some psychodynamic therapy skills in his practice as well. Dr. Thistlethwaite believes in a collaborative and holistic approach to mental healthcare that incorporates the patient as well as all members of the healthcare team in every aspect of care.

Dr. Onah Uwagbai is a board-certified psychiatrist who earned her medical degree from St. George’s University School of Medicine. She completed her psychiatry residency at the University of Kansas Medical Center, where she served as Chief Resident at the Kansas City VA hospital and was recognized for Excellence in Scholarship. Most recently, she worked at the North Texas VA Healthcare System, caring for individuals with treatment-resistant depression and complex psychiatric needs.

Dr. Uwagbai has a passion for supporting individuals with mood disorders, anxiety, trauma, and women’s mental health. She believes healing is best achieved through compassion, collaboration, and respect. Patients can expect a warm, supportive environment where they feel heard and understood, with treatment tailored to their unique history and goals.

Dr. Uwagbai begins with a comprehensive evaluation to understand each patient’s needs and then develops an individualized treatment plan. She draws on evidence-based practices, including expertise in complex cases, and may incorporate both therapy and medication management. Her goal is to empower patients to take an active role in their care while fostering resilience, stability, and long-term wellness.

Dr. Cecilia Fitz-Gerald is a board-certified psychiatrist trained in adult psychiatry and consultation-liaison psychiatry, formerly known as psychosomatic medicine. She has been practicing for over five years and has extensive experience working in a variety of clinical settings, including inpatient, outpatient, and emergency psychiatry. In addition, she specializes in working with patients with acute and chronic medical conditions that may be affecting their mental health, such as cancer, stroke, or a heart condition. She provides patient-centered care utilizing a collaborative approach to help her patients reach their goals. She is a native of Louisiana and a graduate of the LSU School of Medicine in Shreveport. She was elected to the prestigious medical honor society, Alpha Omega Alpha, during her fourth year of medical school and was awarded the John W. Bick Excellence in Psychiatry award. She completed her psychiatry residency training at the University of Texas Southwestern Medical Center where she served as Chief Resident and was a PRITE Fellow. Afterwards, she completed a fellowship in consultation-liaison psychiatry at Yale-New Haven Hospital. Dr. Fitz-Gerald has multiple scholarly publications, particularly in the fields of emergency psychiatry and hospital delirium and has presented at the annual conference for the Academy of Consultation-Liaison Psychiatry. She is passionate about academic medicine and enjoys teaching medical students and residents. Her other areas of clinical interest include ICU delirium and cardiac psychiatry.