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About Us

Spectrum Speech, Language and Occupational Therapy Services is designed to offer the missing link to optimize your potential. Quality intervention and communication keeps your program evolving toward higher level achievements. Therapists are fully licensed and insured. A Master’s level therapist provides an individualized evaluation and treatment plan to target your specific needs.


Who We Are

Alison. M. Evans, MS, CCC-SLP

Owner, Speech-Language Pathologist

Alison earned her Bachelor of Science degree in Speech and Hearing Sciences from Elmira College and a Masters degree in Communication Disorders from Penn State University. Alison is originally from upstate New York, yet has been practicing in South Florida since 1995. Alison has experience in treating and managing a variety of settings including; inpatient and outpatient rehabilitation, skilled nursing facilities, hospitals, schools, home health and private practice. She has experience with a variety of pediatric populations including clients with delayed language, apraxia of speech, myo-functional disorders, phonological disorders, social skill pragmatic disorders, and stuttering. Alison’s skill set expands across a variety of adult disorders including individuals with neurological disorders such as stroke, brain injury, and Parkinson’s Disease. Alison has previously developed and managed Stroke and Parkinson’s support groups in Palm Beach county. Alison began private practice in 2005 and Spectrum Speech and Language Services has been growing and serving children and adults with communication disorders. When not at work, Alison enjoys riding horses and traveling.


Stacey Childers, MS, CCC-SLP

Speech-Language Pathologist

Stacey earned her Bachelor of Science, in Communication Sciences and Disorders, from the University of Arkansas (Woo Pig Sooie!). After graduating, Stacey moved to Texas where she went on to receive her Master of Science degree in Speech-Language Pathology from Texas Woman’s University. She worked in Texas for a pediatric home health company working with a variety of disorders and age ranges; however, she especially enjoys pediatric feeding and swallowing. Stacey currently resides in Palm Beach Gardens. She enjoys spending time with family and friends, traveling, going to the beach and soaking in the beautiful Florida weather!


Heather Wisniewski, MS, CCC-SLP

Speech-Language Pathologist

Heather earned her Bachelor of Science in Communication Disorders from Florida State University (GO NOLES!) in May of 2015. She then got accepted to the University of South Florida where she earned her Master of Science in Speech Language Pathology. Heather has worked at the USF Speech and Hearing Clinic as well as the Bay Pines VA Medical Center in St. Petersburg, FL. Heather feels honored to be part of the Spectrum team and knows that Spectrum will continue to sculpt her into the speech pathologist that clients will trust and love.


Meghan Hemstreet, MS, CF-SLP

Speech-Language Pathologist

Meghan earned her Bachelor of Science in Communication Sciences and Disorders from Florida State University in 2014. After graduating, she worked as a Speech-Language Pathologist Assistant locally in West Palm Beach. Meghan went on to complete her Master of Science in Speech-Language Pathology at the University of South Florida. She has gained experience working in diverse settings, including: private practice, public schools, and outpatient rehabilitation. Meghan is thrilled to complete her Clinical Fellowship here at Spectrum and looks forward to working with all of the wonderful clients!

Sabrina Young, BS, SLP-A

Speech-Language Pathologist Assistant

Sabrina earned her Bachelor of Science in Communication Sciences & Disorders, with honors, from the University of Central Florida (GO KNIGHTS!). She is currently in Graduate school at Nova Southeastern University to become a Master’s level Speech-Language Pathologist. She has much experience working with children in their homes and in the school setting. Sabrina also has experience as a clinical behavioral technician, substitute teacher, and an emergency room medical scribe. When not working, Sabrina enjoys taking her German Shepherd on adventures, spending time with family, scrap-booking, and baking. She is very grateful to be a part of the Spectrum team!


Bill Appelbaum, MOT, OTR/L

Occupational Therapist 

Bill earned his Master’s of Occupational Therapy, with honors, from NOVA Southeastern University in 2012.  Bill Has been working in a pediatric setting since graduating, working with a number of age ranges and populations including clients with Autism Spectrum Disorder, Cerebral Palsy and Down Syndrome. Bill also has experience with adults in outpatient, inpatient and acute rehabilitation setting. Bill has special interest and training in a number of assistive technology devices including tablets, motion controlled devices, and programs such as Typing Without Tears.  Bill currently resided in Boca Raton and enjoys traveling with his family, playing board games with friends and cooking.


Calley Rock, MOT, OTR/L

Occupational Therapist 

Calley earned her Bachelor of Science in Health, Wellness, and Occupational Studies with a Minor in Psychology and her Master of Science in Occupational Therapy, with honors, from the University of New England in Portland, ME. She is originally from Rhode Island and moved to Florida in 2017. Calley has experience working with children on the autism spectrum, as well as working with adults in rehabilitative and psychiatric settings. Her research studying the effects of sensory strategies on children’s self regulatory abilities is an asset to her pediatric clinical skills. In her free time, Calley enjoys travelling, running, and paddle-boarding with her dog. Calley is passionate about working with children of all abilities and is excited to be a part of the Spectrum therapy team!