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Meet Our Team

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Providing both parents and their children with resources to enhance communication and literacy development:

  • Personalized

  • Pediatric  

  • Speech

  • Language

  • Literacy

  • Executive Functioning

  • Social Skills 

  • Orofacial Myology

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Dr. Courtney Overton

Founder & CEO

Speech-Language Pathologist

Literacy Specialist

Courtney Overton, EdD, CCC-SLP is a Speech-Language Pathologist and Literacy Specialist. She is the Founder & CEO of Speech of Cake. With a passion for shaping future clinicians, Dr. Overton also serves as a Clinical Fellowship Mentor at Speech of Cake, a Clinical Supervisor for several universities, and a Clinical Professor at the University of Maryland. For the past few years, Dr. Overton has advocated for neurodivergent students and students of color by providing seminars, workshops, and keynotes on a national level through her organizations, DiverCity SLP and The SLP Guide to Dyslexia.

Dr. Overton received her doctorate in literacy, culture, and language education at Indiana University with a minor in educational leadership and public policy. She also earned a certificate in entrepreneurship from Cornell University. Dr. Overton attended Emerson College to earn a master's degree in speech-language pathology, and she obtained a bachelor's degree in speech-language pathology, minor in linguistics, and certificate in American Sign Language at the University of Pittsburgh. Dr. Overton is a member of For(bes) the Culture, National Black Association for Speech-Language and Hearing, American Speech-Language Hearing Association, International Literacy Association, International Dyslexia Association, Pearl and Ivy Educational Foundation, Incorporated, and Alpha Kappa Alpha Sorority, Incorporated. 


Dr. Overton is trained in PROMPT, Tethered Oral Tissues (TOTs), Tongue Tips, Thumbs Up!, Story Grammar Marker, Orton-Gillingham, Lindamood Bell, Lucy Calkins, Reading Mastery, Corrective Reading, Read Well, Language!, Wilson, Qualitative Reading Inventory, Dyslexia Fundamentals, The Logic of English, Social Thinking, and Unstuck and On Target. She specializes in evaluating, diagnosing, and treating orofacial myofunctional disorders, articulation disorders, phonological disorders, reading/writing disabilities, language disorders, and social skills. Dr. Overton is a 3-time 40 Under 40 recipient in DC, Alexandria, and Northern Virginia!

Phoebe Sullivan

Speech-Language Pathologist

Chief Marketing Officer

Ms. Sullivan meets with students at both offices year-round. She also meets with students at the summer programs. 

Phoebe Sullivan joined the Speech of Cake team in 2020 as a Graduate Clinician. In 2021, she was promoted and became the Speech of Cake Social Media Manager. Phoebe added an additional role as a Speech-Language Pathologist in 2022, and she meets with students throughout the year at both offices for speech, language, and literacy therapy. 


Phoebe earned her MA in Speech-Language Pathology from The George Washington University and her BS in Speech and Hearing Sciences from SUNY Cortland. She has experience with articulation, language, and literacy skills with clients of all ages, and she particularly enjoys helping families with young children ages 2-5 navigate the most crucial time in their child’s speech and language development. Phoebe is a strong proponent of client-centered care that focuses on the family’s values and the child’s interests. She believes in building strong relationships with children to form a foundation for fun and engaging therapy. 


Tracie Parker

Speech-Language Pathologist

Mrs. Parker meets with students at 601 King Street Alexandria, VA 22314 year-round. 

Tracie Parker joined the Speech of Cake team in 2023. She earned her MA in Speech-Language Pathology and her BA in Speech-Language Pathology and Audiology from UNC-Greensboro. Tracie began her career practicing in North Carolina before moving to Virginia in 2021. She has experience with phonological disorders, expressive and receptive language disorders, fluency disorders, and pragmatic language disorders in children ranging from elementary to high school in the school-based setting. Tracie believes in providing individualized training that keeps children engaged, and she is eager to make a positive impact on the lives of children and their families.

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Tyiesha Elliott

Speech-Language Pathologist

Ms. Elliott meets with students via teletherapy year-round.

Tyiesha joined the Speech of Cake team in 2023. Tyiesha Elliott earned her MA in Communication Sciences and Disorders from Hampton University and her BA in Communications from Northwestern State. She has several years of experience working in settings ranging from long term care with geriatrics to early intervention with little ones. She is extremely passionate about working with children while creating connections with them and their families. Ms. Elliott is a Hanen Certified therapist and has participated in trainings in Oral Placement Therapy and Natural Language Acquisition.

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Jessica Shields

Speech-Language Pathologist

Mrs. Shields meets with students at 601 King Street Alexandria, VA 22314 year-round. 

Jessica Shields joined the Speech of Cake team in 2023. She earned her MHS from the University of Missouri and an undergraduate degree in Communication Sciences and Disorders from Kansas State University with a minor in Mandarin Chinese. Her professional experience spans from working with the 0-3 population in early intervention to adult home health services and private practice serving preschoolers and elementary schoolers with autism. Jessica has a keen interest in language comprehension and literacy. In addition, she has a passion for seeing her clients make progress and gain confidence in their speech, language, and literacy skills. She has received certifications in Picture Exchange Communication System (PECS) and Melodic Based Communication Therapy. 


Rebecca Chadwick

Client Concierge

Mrs. Chadwick is our Client Concierge.

Rebecca Chadwick joined the Speech of Cake team in 2023. She received her bachelor's degree in Spanish Language from the University of Wisconsin-Madison. She brings 8 years of experience as a Service Coordinator in a Birth to 3 Program to the team, where she served families with children under the age of 3 with developmental delays and disabilities. She has a passion for working with families and helping them advocate for their children. Rebecca now focuses on providing administrative support services for a variety of small businesses across the country. ​

Feel free to email her at any time at: 


Courtney Claxton-Johnson

Speech-Language Pathologist

Mrs. Claxton-Johnson meets with students at 601 King Street Alexandria, VA 22314 year-round. 


Courtney earned her Master's degree from the University of Central Missouri and her undergraduate degree from Kansas State University. She has experience with children and adults of various populations including Autism, language delays, traumatic brain injury and more from working in private practice and school-based settings. Courtney is a military spouse and is excited to move to Virginia from Washington state. Courtney has enjoyed recently learning about Natural Language Acquisition and executive functioning.

Leigh Poole

Leigh Poole, our co-founder, has made the decision to step down from her role with the company. Leigh has been an integral part of Speech of Cake since its inception, contributing significantly to our growth and success. We extend our heartfelt gratitude for her dedication and passion in shaping Speech of Cake into what it is today. While we will miss Leigh's presence and leadership, we are confident in the strength and resilience of our team. We wish Leigh all the best in her future endeavors, and we look forward to the continued support of our wonderful community as we embark on this new chapter.

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