Our Clinical Staff


Marcos Sastre, Clinical Director


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 developing cultural competency in all areas of the field.


Stacey Schmelzer, Associate Clinical Director


Stacey works primarily with pediatrics and children, with a special interest in autism and childhood apraxia of speech. She 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.

Weiner 2

Melissa Weiner


Melissa earned a Bachelor of Arts and a Master of Science in Speech-Language Pathology from Loyola University Maryland. Her undergraduate academic studies included a minor in Special Education. Melissa is a flautist and a former choir singer. Her musical background influenced her passion in treatment of voice and breathing re-training. She is certified in LSVT LOUD.

Melissa has expertise in voice therapy and breathing re-training with children, adolescents, and adults with vocal fold lesions, vocal cord dysfunction, chronic cough, and muscle tension dysphonia. She has primarily worked in pediatric intervention working with children of various ages and communication needs, such as early intervention, phonological/speech production disorders, fluency disorders, language disorders, and social-pragmatic communication disorders secondary to Autism Spectrum Disorder (ASD). In addition, Melissa has experience treating adults with communication disorders resulting from aphasia, including Primary Progressive Aphasia (PPA), and cognitive communication deficits secondary to stroke, TBI, concussion, and chemotherapy. She enjoys collaboration with other professionals to ensure treatment is functional for clients and their families.

BJ pic

Bridget Joyce


Bridget earned her degree in Speech-Language Pathology at The George Washington University in Washington, D.C. Previously, she attended the University of Delaware where she earned a degree in Cognitive Science with a minor in Disabilities Studies. Her previous experience includes intervention for speech, language, fluency, voice, and cognitive disorders with adults and children at an outpatient office. She also has experience working with students at the pre-kindergarten, elementary, middle, and high school level. Bridget is particularly interested in pediatric feeding, fluency, and pediatric language delays and disorders.


Jennifer Uribe Sierra


Jennifer earned her graduate degree in Communication Sciences and Disorders with a Bilingual/Bicultural Extension Certificate at Teachers College, Columbia University in New York City. Previously, she attended Saint Michael's College in Vermont and received degrees in Neuroscience and Applied Linguistics, graduating with honors and a teaching certificate in TESOL. Her previous experience includes working with multilingual/multicultural elementary and high school students, as well as a bilingual clinician in the Cleft Lip/Palate specialty clinic at TC. She also has extensive experience working with adults with aphasia and cognitive communication disorders. She is highly trained in various aphasia protocols such as VNeST, CART, ORLA, and ARC-W. Jennifer's interests include articulation disorders, aphasia, Autism Spectrum Disorder (ASD), cognitive disorders, cleft lip/palate, AAC, and implementing dynamic and culturally competent evaluations to linguistically diverse and multicultural patients. As a bilingual clinician, Jennifer is dedicated to providing dynamic intervention as well as educating multilingual families on breaking down the myths behind multilingualism and language acquisition.

Our Administrative Staff


La Shawn Dunmore

Practice Manager

La Shawn, known to her friends as 'Shawn,' is a Washingtonian, born and raised. She has been in Healthcare for over 38 years and counting. Shawn comes to us with years of experience in Practice Management and excellent customer service skills. No matter what type of day you are having, she’s sure to put a smile on your face! In her spare time, Shawn enjoys traveling, spending time with her family and especially her fur baby, A’Kiko!