Meet The Team

Our Directors


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 chonic 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 videofluroscopy 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!


Jennifer “Rodney” Hsia


Jennifer is the Assistant Director of Speech & Voice Experience.

She is certified in PROMPT, Beckman, DTTC, Stanley Greenspan floortime model, and S.O.S. feeding. She is also certified in Phono-Graphix, and provides reading therapy through Special Programs. Rodney incorporates speech, language, oral motor therapy, sign language, attention, and memory treatments into each session. Therapy goals follow the patient’s needs as well as their extended life’s needs. It is not only her goal for the patients to learn through therapy, but also for the process to be enjoyable!

Jennifer earned her Bachelor of Arts degree, as well as her Master of Arts degree, at Indiana University.

Our Clinical Staff


Stacey Schmelzer

M.S., CCC-SLP, Assistant Clinical Coordinator

Stacey has been practicing for 8 years, with most of 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.


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.


Kristi Ash

M.S., CCC-SLP, Assistant Clinical Coordinator

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 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, Food Chaining, and Talk Tools: A Sensory-Motor Approach to Feeding Therapy.

Kristi attended 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.


Bryn Quinlan


Bryn has particular interests in language, cognition, and alternative and augmentative communication (AAC). She has experience in providing intervention to pediatric clients with speech, language, and cognitive disorders, as well as individuals with autism and complex communication needs. She is also experienced in treating adults with a variety of cognitive, communication, and swallowing disorders resulting from stroke and degenerative neurological diseases. Bryn has expertise in using both low tech and high tech compensatory strategies and alternative communication solutions. Bryn’s work experiences include diverse settings from alternative education institutions to the Veterans Affairs and Medical Center in Portland, OR.

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

Tino Aceves

Tino Aceves


Juventino Aceves, M.A. CCC-SLP, earned his Bachelor of Arts and Master of Arts in Communicative Disorders from California State University, Fullerton. Tino is a certified Vocologist, having completed training in speech science, medicine, theatre training, and vocal pedagogy through the National Center for Voice and Speech and the University of Utah. He has also been certified in myofascial release for neck, voice, and swallowing disorders and the Lee Silverman Voice Treatment. Tino has given presentations on voice related issues to children, adults, professional voice users. Music is a passion of his, having sung in auditioned ensembles at the university level and professionally as a tenor section leader.


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.

Our Administrative Staff


Jessica Smith


Jessica is the first person to greet you when you arrive in the Shady Grove office. She has a degree in Secondary Education and Social Sciences and previously managed offices in a variety of industries, including law and lobbying firms, chemical companies and commercial real estate.


Sadana Sparrow


Sadana is the first person to greet you at our Chevy Chase location. She holds a Bachelor’s degree in criminal justice and has extensive experience in office support. Sadana is a mother of two.