Mary Sadler Speech Pathology

Serving clients of all ages in Tulsa, Oklahoma

Welcome To Mary Sadler Speech Pathology

With over 30 years of experience, Mary Fell Sadler provides evidence-based speech and language therapy for children, adolescents, and adults. She addresses a wide range of communication challenges, including articulation, stuttering, apraxia, aphasia, voice disorders, and more.

Mary has a special focus on developmental language disorders and their impact on speech and literacy, helping individuals build stronger communication skills for everyday life.

Developmental Language Disorder

A disorder that makes using and understanding language difficult. DLD can cause challenges across many aspects of life including school, work, and social relationships at all ages.

Apraxia & Stuttering

Apraxia; A motor speech disorder that makes it difficult to speak. An individual  has difficulty saying sounds, syllables, and words. Stutter; trouble speaking in a fluid, or flowing way.

Voice Disorders

Affects the ability to speak normally. Can result for poor vocal hygiene, stress on the voice, laryngitis, acid reflux, paralyzed vocal cord(s), Parkinson's Disease, respiratory illness, and more.

Phonological Disorders

Errors of individual speech sounds, which can make speech hard to understand. Click here to see at which ages speech sounds are learned. 

About Mary

Mary Fell Sadler has been a practicing speech language pathologist for over 30 years. She works with communication disorders in children and adolescents, including language impairments and their effects on reading, and writing development. She has extensive experience with language disorders, articulation disorders, (including hard to correct sounds), stuttering, apraxia, autism, auditory processing, word finding, and phonological awareness.

She has spoken locally, as well as nationally, on topics such as reading comprehension and written language, visual supports for autism and other disorders, augmentative and alternative communication, and assistive technology. Working several years in public and private school settings has provided tremendous insight into the demands placed on students with language and learning disorders, from preschool through high school and beyond. She sees clients in the private school setting as well as at her office.

  • "Mary has been a true blessing to our family. My son went from struggling to be understood to speaking confidently in class. Her patience, skill, and ability to connect with children are unmatched."

    — L.R., Parent of a 6-year-old

  • "After my stroke, I was unsure if I’d ever regain my ability to speak clearly. Mary’s knowledge and encouragement helped me make incredible progress. I’m so grateful for her support."

    — J.T.

  • "Mary doesn’t just treat the symptoms—she really understands the underlying challenges. Her work with our daughter’s language disorder has transformed her reading and communication skills."

    — K.M., Parent of a 9-year-old

  • "I’ve worked with several speech therapists over the years, but none have had the insight and dedication Mary brings. She listens, adapts, and truly cares about long-term success."

    — S.H., Teen Client