Certified Professionals


All of the speech-language pathologists and audiologists in the Speech and Hearing National Referral Network™ are ASHA certified and licensed professionals. 


Kristie Knickerbocker 

Speech Language Pathology; Vocology; Singing Voice; Dysphagia;

Kristie Knickerbocker is an ASHA certified speech-language pathologist and singing voice specialist with special training in the area of voice, voice disorders and treatment of the singing voice. Kristie is owner of a tempo Voice Center in Fort Worth, TX. She has experience with singers and professional voice users of all types. She provides intervention for speech, language, voice and swallowing disorders. 

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Kayla Jackson

Specializations: Speech Pathology; Autism Spectrum Disorders; Speech and Language; Speech Therapy

Kayla Jackson is an ASHA certified speech-language pathologist. She is owner of ACCESS Therapy in Nashville, TN. and specializes in autism, apraxia, articulation, speech and language disorders, and augmentative and alternative communication.