Physical Therapy Faculty and Staff

Dr. Quiben serves as the interim chair of the department and as director of the clinical medicine series, cardiopulmonary physical therapy and CAPSTONE courses. Dr. Quiben is a dual board-certified clinical specialist in Neurologic and Geriatric Physical Therapy (NCS, GCS), through the American Board of Physical Therapy Specialties, and is a Fellow of the APTA Education Leadership Institute, the National Academies of Practice, and the Texas Physical Therapy Association’s Leadership Program. She obtained her PhD in Physical Therapy and postprofessional Doctor of Physical Therapy from the University of Central Arkansas, Bachelor of Science in Physical Therapy from the University of the Philippines, and MS in Clinical Investigation from the University of Texas Health Science Center, as part of her postdoctoral training in geriatric research. An active member in many APTA components, Dr. Quiben’s current scholarly activities include geriatric outcome measures, movement system, simulation and interprofessional education, and therapeutic interventions for neurological populations.

Dr. Brandy Schwarz PT, EdD, DPT, OT, MBA received her Doctor of Physical Therapy degree from the University of Saint Augustine for Health Sciences in Florida in 2007. She also received a Master of Occupational Therapy from University of Saint Augustine for Health Sciences in 2006. In 2010, she completed her Master of Business Administration with an emphasis in healthcare administration. She graduated from the University of Portland in Oregon in 2004 with a B.S. degree in Biology. She completed her EdD in Higher Education Leadership at Texas Christian University in 2017. She is a Certified Health and Wellness Coach and Certified Lymphedema Therapist. In 2018, she was inducted as a Distinguished Scholar and Fellow of the National Academies of Practice. Prior to coming to UNTHSC, Dr. Schwarz practiced as a physical therapist and occupational therapist at Baylor All Saints Medical Center in Fort Worth.

Dr. Ayres is a graduate of Angelo State University PT school in 2008 and received her tDPT from Hardin-Simmons in 2012. She has 11 years of clinical experience practicing at Texas Health Resources Fort Worth where she developed her passion for cardiac and pulmonary care in the acute setting. She is a graduate of Brigham and Women’s Cardiovascular and Pulmonary residency program located in Boston and DPT Board Certified Specialist in Cardiovascular and Pulmonary Physical Therapy. Prior to transitioning to UNTHSC full time Dr. Ayres served for 4 years as an adjunct lab instructor in the cardiovascular and pulmonary class at UNTHSC.

Dr. Mindy Brummett is course director for Applied Anatomy and Kinesiology, Exercise Physiology, Evidence Based Practice, and Therapeutic Interventions II courses. She also assists in the Musculoskeletal content. Dr. Brummett graduated from The University of Texas Southwestern Medical Center in 2009. She obtained her Orthopedic Clinical Specialist from the APTA in 2013. She has treated in an outpatient orthopedic setting for 12 years. Currently, Dr.  Brummett is pursuing her Doctor of Science degree from Texas Tech University. Research interests are accuracy of information used in social media content and concussion management. 

Dr. Butler graduated from Washington University School of Medicine in St. Louis, MO with dual Doctor of Physical Therapy and Master of Science in Clinical Investigation degrees. She is passionate about blending her expertise in the management of both musculoskeletal and cardiopulmonary conditions. Dr. Butler will begin directing evidence-based practice and clinical medicine coursework. Prior to joining the team at UNTHSC, she worked in acute and critical care at UT Southwestern Medical Center, outpatient orthopedic and geriatrics at a private practice in Dallas, and was an Adjunct Faculty member at Baylor University for four years. Her research interests include early mobilization and higher-intensity exercise interventions in the acute care setting; the overmedicalization of common musculoskeletal conditions; cardiovascular disease prevention and wellness promotion efforts in community settings; burnout and resilience in health care professionals and students.

Dr. Kimberly Lemmons is a course director for core Neuromuscular content and has assisted with Motor Control coursework.  She is also a course director for Clinical Reasoning I.  

Dr. Lemmons maintains her clinical practice of more than 17 years as a Board-Certified Clinical Specialist in Neurologic Physical Therapy and as a Certified Stroke Rehabilitation Specialist.  Her current research interests involve acute post-stroke recovery, the critical care setting, and improving student experiences in acute care.  She graduated with her Masters of Physical Therapy from California State University, Northridge, and her Doctorate from the University of Tennessee, Chattanooga.

Dr. Hao (Howe) Liu received his MS (Neuroanatomy) and MD degrees in China, PhD (Anatomy) and MPT degrees from the University of Mississippi Medical Center. He joined the Physical Therapy Program at the University of North Texas Health Science Center (UNTHSC) in January 2010 from the University of Central Arkansas. As a Professor of Physical Therapy at the UNTHSC, he teaches, as the course coordinator, Functional Anatomy, Neuroanatomy, and Evidence-Based Practice (II). In addition, he taught EBP I, III, and IV, as well as Pharmacology in Physical Therapy, Interprofessional Education (IPE) at UNTHSC. Also he taught Gross Anatomy, Neuroscience, Research Design, Applied Histology, Pathology, & Physiology, Differential Diagnosis, Cardiopulmonary Rehab, and International Study (Alternative Medicine) of Physical Therapy when he was in the University of Central Arkansas.

Kenneth L Miller, PT, DPT, is a board-certified geriatric specialist, certified exercise expert for aging adults and credentialed clinical instructor from APTA. He is an assistant professor at the University of North Texas Health Science Center serving in the department of physical therapy. His clinical focus is on best practices and optimal care of the pre-frail and frail populations. Current teaching responsibilities include evidence-based practice, pharmacology and cardiopulmonary rehabilitation. Dr. Miller is an international and national speaker presenting topics related to gerontology in Australia and across the United States at national level conferences including the combined sections meeting and NEXT conferences of the American Physical Therapy Association. He has multiple peer-reviewed publications on clinical pharmacology and has recently been a guest editor for the Topics in Geriatric Rehabilitation peer-reviewed journal issue focusing on medications and nutrition. He serves the physical therapy profession as director of practice for the Academy of Geriatric Physical Therapy and additionally as the Chair of the Practice Committee for the Home Health Section of the APTA. In this capacity, he led the development of the Providing Physical Therapy in the Home handbook and other resources such as home health student roadmap and toolkit and the home health section’s objective test toolbox.

Charles Nichols, PT, DPT, M.Ed., Sc.D. is an Assistant Professor for the Department of Physical Therapy.Dr. Nichols is the course director of the Musculoskeletal classes of the Physical Therapy program. He is a Board Certified Orthopaedic Clinical Specialist (OCS) by the APTA, and a Certified Orthopedic Manual Therapist (COMT) by Evidence in Motion and the International Academy of Orthopaedic Medicine-US. His primary interest is in the evaluation and treatment of orthopedic physical therapy patients with a special interest in treatment of the spine.Degrees: Bachelor of Science in Physical Therapy from Texas Tech University, Master of Education from the University of Texas at Tyler, Doctor of Physical Therapy from Texas Tech University Health Sciences Center and Doctor of Science degree from Texas Tech University Health Sciences Center. Certifications: Functional Dry Needling, Functional Movement Screen and Selective Functional Movement Assessment screens and also completed training as a Corrective Exercise Specialist (CES) through the National Academy of Sports Medicine. Dr. Nichols is a member of the American Physical Therapy Association and the American Academy of Orthopedic Manual Physical Therapist.