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140 Gregory Lane #210
Pleasant Hill, CA 94523

(925) 787-2297

Located in Pleasant Hill, CA, and serving nearby communities such as Danville, Alamo, Walnut Creek, Lafayette, Concord, Martinez, etc. Posy Inc. provides speech and language therapy services to children with a variety of needs. Our lead therapist, Katie Irwin Hall, M.A. CCC-SLP, has worked in various settings providing assessment and treatment of children with developmental disabilities, phonological disorders, language impairments, developmental apraxia of speech, auditory processing disorders, fluency disorders, and autism. Katie has a passion for working with families and their children in early intervention - concentrating on building communication, social, and play skills - as well as social cognition therapy for children with Autism Spectrum Disorders. 

Our Team

Speech Pathologist and Certified Autism Specialist, Katie Irwin

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Katie Hall, M.A., CCC-SLP, is the founder of Posy Inc. Katie earned a Bachelor of Science degree in Communication Disorders from the University of South Dakota, a Master of Arts degree in Speech-Language Pathology from the University of Kansas, and is a speech-language pathologist certified by the American Speech-Language-Hearing Association (ASHA). 

Katie has worked in various settings providing assessment and treatment of children with developmental disabilities, speech sound disorders, language impairments, developmental apraxia of speech, fluency disorders, and autism. Katie has a passion for working with families and their children in early intervention - concentrating on building communication, social, and play skills - as well as social cognition therapy for children with Autism Spectrum Disorders. 

In her free time, Katie enjoys hiking, reading, camping, crossfit, and spending time with her husband and two children. 

Katie's professional training includes:

  • Picture Exchange Communication System (PECS)

  • Hanen: More Than Words

  • Interactive Metronome

  • It's Yoga Kids: Pediatric Yoga Instructor Training

  • Pivotal Response Training

  • various courses related to the treatment of children with Autism Spectrum Disorder (ASD)


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Heather Coniglio, B.S., SLPA, is a certified speech-language pathology assistant (SLPA).   Heather earned her certification from San Joaquin College in 2014.  In February of 2015 Heather joined the Posy Inc. team.   Prior to working as an SLPA, Heather worked with special needs children at a local area school, ranging from early intervention to school age.  Heather has special interest in the early intervention population, expressive and receptive language disorders, autism, phonological disorders, and language and learning disabilities.

A native to the Pleasant Hill area, Heather graduated from Acalanes, before continuing her education at the University of California – Santa Barbara where she earned a Bachelors of Science in Sociology.  Heather then followed her passion for cooking, attending the Culinary Institute of America in Napa, before working in pastries in the Seattle area.  Heather returned to the Bay area to start a cooking with kids program.  Outside of work Heather can be found hiking the local trails, cooking, sewing, enjoying movies, and spending time with family and friends.

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Katy Wakim, M.S., CCC-SLP, is a speech-language pathologist certified by the American Speech-Language-Hearing Association (ASHA). She decided to become an SLP after seeing first-hand how her brother, diagnosed with Autism, benefitted from specific intervention in communication. Katy earned a Bachelor of Science degree in Speech Pathology and Audiology and a Certificate of Disability Studies from West Virginia University. She went on to complete her Master’s degree in Speech Pathology at WVU.

Katy has worked in a variety of settings with both children and adults. She has experience in the assessment and treatment of language impairments, speech sound disorders, fluency disorders, voice and resonance impairments, and dysphagia. She loves that, as an SLP, there are always opportunities to learn new techniques for assessment and intervention and keep things interesting with an individualized approach.

Since she recently became a California resident, Katy enjoys exploring all that the West Coast has to offer. Throughout the year, you can find her cheering on the West Virginia Mountaineers and the Golden State Warriors. 


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Kailey Davis, M.A., CCC-SLP, is a speech-language pathologist and a graduate from California State University, Chico. Kailey earned both her Bachelor of Arts and Master of Arts in Communication Sciences and Disorders, and a national certification in Speech-Language Pathology from the American Speech and Hearing Association.  Kailey has worked in variety of settings, including medical, schools, and private practice, working with adults and children. Kailey has experience in the assessment and treatment of speech sound disorders, language impairments, voice and resonance disorders, dysphagia, and apraxia of speech. Kailey loves the challenge of finding that one strategy or intervention approach that works for that specific child and seeing the results, no matter how big or small. There is nothing better or more exciting than seeing a child speak their first word, meet a goal, or learn a new way to communicate to their parents and loved ones.

In her free time, Kailey enjoys spending time with her family and friends, cooking, and exploring the area.


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Hannah Vaughan, M.A. CCC-SLP  is a speech-language pathologist who earned both her Bachelor of Arts Degree and Master of Arts Degree in Communication Sciences and Disorders from California State University, Chico. She holds a national certification in Speech-Language Pathology from the American Speech and Hearing Association.

Hannah has worked in a variety of settings including early intervention, a skilled nursing facility, private practice, and elementary and middle schools. She has experience in assessment and treatment working with children and adults with various developmental disabilities, speech sound disorders, language impairments, fluency disorders, dysphagia, and AAC. Hannah loves the field of speech language pathology as she has a passion for helping children increase their communication abilities and find their own voice.

Hannah is new to Pleasant Hill/Walnut Creek and is excited to explore the area. In her free time, she enjoys taking trips into the city and spending time with family and friends.