Heidi Haas, M.S., CCC-SLP/L

Heidi Haas, M.S., CCC-SLP/L
Adjunct Instructor of Communication Sciences and Disorders, School of Humanities
777 West Harrisburg Pike
Middletown, PA 17057-4898

Heidi Haas has worked as a speech-language pathologist in central Pennsylvania since 1995, in a variety of clinical settings. Her previous work experience included adult sub-acute care and in-patient adult neuro-rehabilitation at Milton S. Hershey Medical Center. Since 2001, she has provided assessment and intervention services for children, aged three to five, in outpatient and classroom based settings. Her areas of specialty include pediatric speech sound disorders and Autism Spectrum Disorder. For the past 20 years, Heidi has provided mentorship and supervision to graduate student clinicians in their fieldwork experiences and clinical fellows in their first year of employment. She was a nominee for the 2020 ASHA Certificate of Recognition for Outstanding Contributions in Preschool-Grade 12 Education Settings and the recipient of an Innovation Grant, which provides community-based speech therapy for children with speech sound disorders while enhancing emergent literacy skills. Heidi is also a teacher-author with over 80 online resources for practicing clinicians related to assessment and evidence-based treatment of pediatric speech sound disorders. She is a preferred provider with the Apraxia Kids Network and the recipient of three ACE awards through the American Speech-Language-Hearing Association.


Heidi joined the Penn State Harrisburg Communication Sciences and Disorders Advisory Board in 2021. She is thrilled to join the distinguished adjunct faculty at Penn State Harrisburg, teaching clinical phonetics to undergraduate students.

Professional Affiliations

  • Communication Sciences and Disorders Advisory Board, Penn State Harrisburg, Member-June 2021 – Present
  • Apraxia Kids Preferred Provider August 2018 -- Present
  • PA Instructional II Professional Certificate Speech & Language Impaired, September 2012--Present
  • PA Bureau of Professional and Occupational Affairs License, September 1996-- Present
  • American Speech-Language-Hearing Association, Member-May 1995—Present
  • Pediatric Speech Sound Disorders (Childhood Apraxia of Speech, Phonological Disorders)
  • Pediatric Autism Spectrum Disorder (Neurodiversity Affirming Practices)

Speech Sound City: A Distinctive Features Approach to Treating Highly Unintelligible Speech
Reviewed and edited by Dave Hammer, MS, CCC-SLP/L September 2019

  • Masters of Science in Communication Disorders- The Pennsylvania State University, University Park
  • Bachelors of Science in Communication Disorders-The Pennsylvania State University, University Park

  • Resources for Speech Sound City included in the presentation by Sherry Sancibrian (Texas Tech University Health Sciences Center) entitled “Treating Speech Sound Disorders 21st Century Style” Pennsylvania Training and Assistance Network October 25, 2019.
  • Speech Sound City:  A Distinctive Features Approach to Treating Highly Unintelligible Speech, presented at Capital Area Intermediate Unit Clinical Exchange In-service, May 22, 2019.
  • Speech Disorder Differentiation and Treatment presentation at Capital Area Intermediate Unit, Enola PA September 30, 2016.
CSD 311 Clinical Phonetics