Our Team
Team Directors
Sue Ann Lee, Ph.D., CCC-SLP
Professor of Speech-Language Pathology, Director of the Cleft Palate Research Unit
(CPRU),
School of Health Professions, Texas Tech University Health Sciences Center

Dr. Sue Ann Lee is a professor of Speech-Language-Hearing Sciences at Texas Tech University Health Sciences Center, and a certified speech-language pathologist specializing in the assessment and treatment of pediatric speech sound disorders and children with cleft palate. Dr. Lee completed her doctorate in Communication Disorders at the University of Texas at Austin and a post- doctoral fellowship at the Callier Center at the University of Texas at Dallas. As an internationally well-known researcher, Dr. Lee was selected as a Fullbright US Scholar in 2019 to teach at Hue University of Medicine and Pharmacy, Vietnam and the President of Asia Pacific Society of Speech, Language, and Hearing 2022-2023. Her current research interest lies in the efficacy of telepractice service delivery model for children with cleft palate funded by the National Institute of Dental and Craniofacial Research (NIDCR). Dr. Lee received a Chancellor's Council Distinguished Research Award in 2014 and SHP Dean's excellence in Research award in 2018 and 2022.
Joshua Demke, M.D.
Professor, Department of Otolaryngology Head-Neck Surgery, School of Medicine, Texas Tech University Health Sciences Center

Dr. Joshua Demke is a professor of Otolaryngology at Texas Tech University health Sciences Center. Dr. Demke joined Texas Tech Physicians in 2009. Dr. Demke completed his medical school education at Texas Tech University Health Sciences Center in 2003, and went on to complete his Surgical Residency in Otolaryngology/Head and Neck Surgery at UNC Chapel Hill, North Carolina in 2008. He is a Fellowship-trained surgeon in Facial Plastic and Craniomaxillofacial Surgery through the American Academy of Facial Plastic and Reconstructive Surgery from SUNY Upstate Medical University in Syracuse, New York. Dr. Demke, specializing in pediatric and adult congenital deformities, has specialized interest in Cleft and Craniofacial Surgery, Ear Surgery, Nasal Surgery, Eyelid Surgery, Jaw Surgery, and in reconstruction of facial defects from traumatic injury. In addition to these special interests, Dr. Demke provides multiple facial cosmetic procedures to improve the effect of aging, including Botox treatment.
Team Coordinators
Tahira Gibson, MS, CCC-SLP
Tahira is an ASHA-certified speech-language pathologist at the Texas Tech University Health Sciences Center’s (TTUHSC) Cleft Palate Research Unit. She completed her graduate studies at the TTUHSC and is pursuing her Ph.D. at the same institution. Tahira specializes in speech sound disorders, craniofacial disorders, and orofacial myofunctional disorders in the pediatric population. She received the ASHA ACE Award in 2021 and 2022.
Tam M. Nguyen, MS
Tam P. M. Nguyen is a Ph.D. student in Rehabilitation Sciences at the School of Health Professions, Texas Tech University Health Sciences Center. She earned her Bachelor’s degree in Medicine in Hue University of Medicine and Pharmacy - Vietnam in 2014 and her Master of Sciences in Medicine in Jeonbuk National University – Korea in 2019. Tam has experience in providing assessment and intervention for patients with communication disorders. Her research interests include speech sound disorders and cleft lip and palate.