Meet The Team

Our Clinical Staff


Stacey Schmelzer

M.S., CCC-SLP, Clinical Coordinator, Rockville Office

Stacey has been practicing for 8 years, with most of her work being primarily with pediatrics and children.  She has a special interest in Autism and Childhood Apraxia of Speech and is certified in PROMPT, among other therapies.

Stacey attended North Carolina Central University where she received her Bachelor of Arts degree in Elementary Education. She was employed in the preschool setting for a year before earning a Masters of Science degree in Speech-Language and Auditory Pathology at East Carolina University.


Kristi Ash

M.S., CCC-SLP, Clinical Coordinator, Chevy Chase Office

Kristi’s areas of interest include Childhood Apraxia of Speech, articulation disorders, language disorders, reading disorders/Dyslexia, and pediatric swallowing/feeding disorders. She is conversationally fluent in sign language and has additional experience in aural rehabilitation. Kristi has expertise in using a comprehensive approach to reading disorders with the use of the Wilson Reading Program and addressing reading-related phonological awareness skills. Kristi is passionate about working with young children and making therapy both enjoyable and functional. Her recent training includes PROMPT, The Picture Exchange Communication System (PECS), Food Chaining, and Talk Tools: A Sensory-Motor Approach to Feeding Therapy.

Kristi attended the University of Connecticut, where she received her Bachelor of Arts in Speech, Language, & Hearing Disorders. She is a graduate of Gallaudet University, where she earned her Master of Science in Speech-Language Pathology.


Angela Rivera


Angela’s areas of expertise are in early childhood articulation disorders, dysarthria, tongue thrusts, and apraxia. She has attended continuing education courses that include: PROMPT, Beckman Oral Motor, Orofacial Myology, and Talk Tools courses with a focus on sensory-motor approaches for apraxia of speech and feeding therapy. She is bilingual in Spanish and also holds expertise and interest in early childhood language delays and disorders with regards to expressing and understanding language, grammar, and pragmatics.

Angela attended Vanderbilt University in Nashville, TN where she received a Bachelor of Arts in Human Organizational Development  with a concentration in health services. She is a graduate of New York Medical College where she received a Master of Science in speech-language pathology.


Bryn Quinlan


Bryn has particular interests in aphasia, cognition, and augmentative and alternative communication (AAC). She has experience in providing intervention for children with speech, language, and cognitive disorders, as well as for individuals with complex communication needs. She is also experienced in treating adults with cognitive, communication, and swallowing disorders resulting from stroke, brain injury, or degenerative neurological diseases. Bryn’s work experience includes a variety of settings such as hospitals, skilled nursing facilities, and alternative education institutions. She is certified in the McNeill Dysphagia Therapy Program (MDTP) and trained in the Language Acquisition through Motor Planning (LAMP) approach for AAC.

Bryn earned a Bachelor of Arts from Scripps College in Claremont, CA, where she focused on Russian and Eastern European Studies. After working in administration and accounting for a non-profit, Bryn pursued further education in speech and hearing sciences, eventually earning a Master of Science in Communication Disorders and Sciences at the University of Oregon in Eugene, OR.


Marcos Sastre


Marcos Sastre, M.S. CCC-SLP, earned his degree in Communication Sciences and Disorders with a Bilingual/Bicultural Extension Certificate at Teachers College, Columbia University in New York City. Previously, he attended Tufts University in Massachusetts and received degrees in Cognitive and Brain Science and Communications, graduating summa cum laude. As an avid singer and actor, he is keenly interested in all aspects of communication, but particularly in disorders of the larynx and voice, as well as the communication needs involved in head and neck cancer, neurogenic/motor speech difficulties, cognition, and speech articulation. As a native bilingual, he is passionate about improving cultural competence in the field and working with patients of all ages in both English and Spanish.

Kelly Sharer


Kelly Sharer, M.A. CF-SLP, earned her degree in Speech-Language Pathology at The George Washington University in Washington, DC. Previously, she attended The Johns Hopkins University in Baltimore, Maryland and earned a degree in Cognitive Science and Psychological & Brain Sciences, graduating with honors. Her previous experience includes intervention for speech, language, fluency, voice, cognitive, and swallowing disorders with children and adults in an outpatient military hospital and with students in an elementary-middle charter school. Kelly is particularly interested in language delays and disorders, neurogenic communication disorders, aphasia, and cognitive-communication disorders. She is certified in LSVT-Loud.

Kayla O’Connor


Kayla O’Connor, M.S. CF-SLP, earned her degree in Speech-Language Pathology at Boston University in Massachusetts. Previously, she attended The College of Wooster in Ohio where she earned a degree in Communication Sciences and Disorders, graduating magna cum laude with thesis honors. Her externship experiences included early intervention, early childhood center, and outpatient hospital diagnostic team. Kayla has a particular interest in pediatric articulation disorders, language disorders and delays, and neurological communication disorders.


Leslie S. Kessler


Areas of certification include LSVT, LMRVT, CSCFT, PROMPT, DTTC Beckman, McNeill Dysphagia Therapy Program, FEES, and MBS.  Leslie has innovated therapy programs unique to Language & Voice Experience. This includes interventions for chronic cough and throat clear, oral motor dysfunction, saliva management, and swallowing, dyspraxia, cognition, and respiration.

Leslie was awarded Bachelor of Arts and Master of Arts degrees from New York University in speech-language pathology and audiology and was indoctrinated in Neurodevelopmental Treatment (NDT). Leslie developed and implemented the videofluoroscopy and swallowing program at Potomac Hospital, in Virginia.

Leslie has presented and continues to present at numerous conferences, including the Motor Speech conference, Parkinson Foundation of the National Capital Area and the American Speech-Language-Hearing Association. She is a guest lecturer at the University of Maryland’s graduate course in Motor Speech Disorders, is an active researcher and presenter, has been published in peer-reviewed journals and texts, and is a frequent speaker at symposiums, association meetings and support groups for Parkinson’s Disease.

She authored and is offering training in her pediatric voice therapy program Buzzy Child- Resonant Voice Therapy That’s Fun!

Our Administrative Staff


Sadana Sparrow


You’ll find Sadana at both our Chevy Chase and Rockville offices. She holds a Bachelor’s degree in criminal justice and has extensive experience in office support. Sadana is a mother of two.