Our Hours

Monday: 8:30AM - 7PM

Tuesday: 8:30AM - 7PM

Wednesday: 8:30AM - 7PM

Thursday: 8:30AM - 7PM

Friday: Morning appointments only

Saturday: Closed

Sunday: Closed

Additional Information

We accept the following insurances: Anthem, Blue Cross, Blue Shield, Medicaid

Around the Office

Meet our Therapists

Chelsea Blanchard


Chelsea Blanchard graduated from the University of South Carolina with her Master's degree in Speech-Language Pathology. She is co-owner of The Center for Stuttering Therapy, where she has been working almost exclusively with children, adolescents, and adults who stutter since 2010. She provides consultation services as well as training and support for parents, speech pathologists, and educators. Chelsea is also the mother of a child who stutters. Working at CST is Chelsea’s passion. She holds the Ally of Stuttering Seal and is currently pursuing a distinguished board certification in the area of fluency by the American Speech, Language and Hearing Association. Additional experience includes 8 years in the public school setting with grades pre-k-12, mentoring other speech pathologists who are learning about fluency disorders, and being PROMPT trained.

Chelsea lives in Louisville with her husband and three children. When not at the Center, Chelsea enjoys traveling, hiking, cooking, and spending time with family and friends.

Mary Wallace


Mary Wallace graduated in 1983 from the University of Colorado, Boulder, with her Master's degree in Communication Disorders and Speech Science. In addition, Mary has been a Board Certified Specialist in Fluency since 2001. She is certified by the American Speech, Language and Hearing Association and is on the Colorado specialists referral list of the Stuttering Foundation of America. Mary has specialized exclusively in the diagnosis and treatment of stuttering in both children and Adults, working primarily in private practice, since 1984. Additional experience includes providing clinical supervision of Master's level graduate students and organizing and implementing a state-wide speech-language-hearing screening program.

Mary and longtime colleague Patty Walton opened the Center for Stuttering Therapy in Boulder and Denver in 1992. Mary is the co-owner and practitioner in the Boulder office. She provides consultation services, training workshops for parents, speech pathologists and educators, and traditional and intensive stuttering therapy for children and adults across the United States and internationally. Stuttering is her passion and her life's work.

Mary is the co-author of the preschool treatment book, "Fun With Fluency", and has published several articles concerning stuttering in national and international journals. She has presented extensively both on a state and national level in the area of fluency disorders.

Mary lives in Boulder with her husband. She is the proud Nana of Layla and Will and enjoys family time with her two grown sons (both of whom stuttered when they were young) and their wives. When not at the Center, Mary enjoys time with her grandchildren, skiing, biking, reading and cooking. Traveling with her husband is pretty fun as well.

Matthew Goldman


Matthew graduated from the University of Connecticut with degrees in Psychology and Anthropology and completed a Masters degree in Speech Language Pathology at the University of Colorado in Boulder. During graduate school, Matthew focused on fluency and stuttering and completed an internship at the Center for Stuttering Therapy prior to graduating. He currently works at the Center for Stuttering Therapy and at an elementary school in Boulder Valley School District, doing therapy with stuttering, articulation, voice, social pragmatics and language delay. In his free time, Matthew enjoys hiking, reading, learning new languages, and traveling with his fiancée Kristina.

Lindsey Weinzetl


Lindsey Weinzetl graduated from the University of Montana, with her Master’s degree in Communication Sciences and Disorders. Lindsey is certified by the American Speech, Language and Hearing Association. Lindsey gained extensive experience working at the Center for Stuttering therapy as an intern and has worked in a pediatric private practice, early intervention, and public school settings providing stuttering, articulation, language, and social pragmatic intervention. Lindsey has a passion for helping individuals of all abilities, which she credits to growing up with a younger brother who has Cerebral Palsy. She has a strong interest in working with her clients and their families as a whole unit, in hopes of making the greatest impact and growth possible. In her free time, Lindsey enjoys running, fly fishing, camping, riding horses, and spending time with her husband, stepdaughter, and new baby girl.

Alice Kembel


Alice Shi Kembel graduated from Stanford University with a degree in Psychology and earned a Masters degree in Speech Language Pathology from the University of Colorado in Boulder. Alice’s main area of interest in graduate school was fluency and stuttering, and she trained as a student clinician with the Successful Stuttering Management Program at the University of Utah, as well as completed an internship at the Center for Stuttering Therapy. Alice worked as a speech pathologist in the Palo Alto Unified School District in California before starting her own private practice. She has experience in therapy for stuttering, expressive and receptive language, articulation, voice, autism, and social pragmatic skills. Alice enjoys camping, fly fishing, hiking, reading, quilting, knitting, traveling, playing poker, and spending time with her three teenage sons.

Emily Guttmann


Emily Guttmann received her bachelor of arts degrees in Speech, Language, and Hearing Sciences, and Vocal Music Performance from the University of Colorado at Boulder. She went on to receive her master's of arts degree in speech language pathology from the University of Northern Colorado. Emily studied and trained under Patty Walton, co-author of the "Fun with Fluency" book, and co-owner of The Center for Stuttering Therapy with Mary Wallace. Emily's stuttering therapy practice combines evidence-based, fluency enhancing strategies with meaningful dialogue and counseling to create a comfortable and supportive space for her clients. She works collaboratively with her clients to create relevant and achievable short term objectives, with the ultimate goal of leaving therapy with the tools to succeed beyond the private therapy setting.

Emily currently works at an elementary school full-time in Boulder Valley School District and has previously worked in pediatric private practice. When she is not working, you can often find her outside enjoying many of the outdoor activities Colorado has to offer with her fiance and 7-year-old border collie mutt, working in her garden, or taking on a new art project.