Meet Our Staff of Experts
Board Certified Psychiatric Mental Health Nurse Practitioners
Dr. Sara Koenig-Langston
Dr. Sara L Koenig-Langston, APRN, PMHNP-BC is a highly motivated and professional nurse with strong values and a commitment to evidence-based practice. She holds a Doctorate of Nursing Practice from Maryville University, a Masters Degree in Nursing as a Psychological Mental Health Nurse Practitioner from Maryville University, and a Bachelor of Science in Nursing from the University of Texas at Arlington. She also has an Associates Degree in Nursing from Baptist School of Health Professions and an Associates Degree in Social Science from Shasta College. Dr. Koenig-Langston is currently the owner and manager of her own mental wellness company, Affective Mental Wellness, where she is responsible for diagnosing mental illness, ordering and interpreting laboratory tests, facilitating treatment planning, prescribing medication, providing psychotherapy, and collaborating with assertive community treatment teams. In addition, she is an Adjunct Professor of Nursing at Maryville University of St. Louis, teaching graduate level courses such as Nursing Diagnosis and Management, Psychiatric Mental Health Diagnosis and Management, and is involved in curriculum development and revision for graduate nursing courses. She also works as a mentor and advisor for graduate nursing students. Dr. Koenig-Langston is dedicated to advancing nursing practice through research and teaching, and advocating for the nursing profession through legislative change. In her spare time, she enjoys spending time with her husband and their 5 children, traveling, riding their horse, and practicing Brazilian Jiu Jitsu.

Dallas Henson, MSN, APRN, PMHNP-BC
Dallas Henson, MSN, APRN, PMHNP-BC is a dedicated and compassionate addition to our Affective Mental Wellness team. With over 15 years of healthcare experience, Dallas Henson is excited to bring her expertise to the community she calls home and improve access to mental health care.
Dallas holds a Masters of Science in Nursing from UT Arlington and a Bachelor’s degree in psychology from Texas A&M University. Her unique background blends nursing with psychology, creating a comprehensive approach to mental wellness. Her philosophy revolves around the interconnectedness of mental and physical health. She believes that every aspect of an individual's life matters in achieving well-being. Through collaboration and understanding, Dallas partners with patients to develop a personalized path to mental wellness.
With her extensive knowledge of medications, Dallas guides patients through the complexities of treatment options. She believes in empowering patients to be experts in their bodies, leading to informed decisions that align with each person's unique needs. She is passionate about fostering partnerships and supporting individuals to live their best lives. Her dedication to both patients and the community creates a holistic environment for growth and healing.
When not championing mental wellness, Dallas enjoys spending time outdoors, embracing nature's beauty. She believes that self-care extends beyond the professional realm and is an essential component of overall well-being.
We are honored to have Dallas Henson, MSN, APRN, PMHNP-BC as a valuable member of our team at Affective Mental Wellness. Her holistic approach, expertise in medications, and dedication to community well-being align seamlessly with our mission to provide compassionate and comprehensive mental health care.

What is a Nurse Practioner
What is a Nurse Practitioner?
NOT a medical doctor. A Nurse Practitioner (NP) is, first and foremost, a registered nurse, the most trusted profession in the United States. The NP has completed a master degree from an accredited university and has the training and ability to provide excellent nursing care as well as diagnose and treat a wide variety of disorders.
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NP Credibility: NPs are more than just health care providers; they are mentors, educators, researchers and administrators. Their involvement in professional organizations and participation in health policy activities at the local, state, national and international levels helps to advance the role of the NP and ensure that professional standards are maintained.
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Lower Health Care Costs: By providing high-quality care and counseling, NPs can lower the cost of health care for patients. For example, patients who see NPs as their primary care provider often have fewer emergency room visits, shorter hospital stays and lower medication costs.
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Patient Satisfaction: With more than 1.06 billion visits made to NPs each year, patients report an extremely high level of satisfaction with the care they receive.
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Primary Care Shortage Solution: By offering high-quality, cost-effective, patient-centered health care, NPs provide more than 290,000 solutions to the primary care shortage facing America today