Owner & Director

Gillian Gladstone Teran is a Speech-Language Pathologist and an IAOM Board Certified Orofacial Myologist™. She has over 10 years of experience in private practice. Gillian has also worked in and collaborated with numerous public and nonpublic schools and daycares across the DC Metropolitan area. Gillian founded her own private practice in 2017, specializing in speech, feeding, swallowing, and orofacial myofunctional disorders. Clients of all ages have improved with her care. 


Gillian earned her Master's degree from the University of Maryland and her Bachelor's degree from Miami University. She is certified with the American Speech-Language-Hearing Association (ASHA), and is licensed in Maryland, Washington, DC, and Virginia. Gillian is an active member of the International Association of Orofacial Myology (IAOM™).

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Ronisha C. DeLuzio, M.S., CCC-SLP is an ASHA Certified Speech-Language Pathologist who is licensed in Maryland and Virginia. She received her Bachelor's degree from the Penn State University and her Master's degree from Nova Southeastern University.


Ronisha has over 10 years of experience working with both children and adults in a variety of clinical settings. Ronisha also has training in Orofacial Myofunctional Therapy from the International Association of Orofacial Myology (IAOM™) and is a current IAOM™ member.  Her genuine love for helping others is what motivates her to give her very best to each family she is privileged to work with.  She is also a devoted mother who enjoys spending time with friends and family.

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Christine has always had a passion for helping children and families with feeding, but having a son of her own with a tongue tie has helped her find her calling and her passion. She learned first hand the difficulties of infant feeding from a parent's point of view. She wants to help families early on so that therapy is short and effective! Christine loves to be a detective and to figure out the root cause of the issue and then educate families about why they are experiencing the difficulties they see and works with each individual family to develop a plan for how to remediate those issues. She has found her passion and her purpose in helping people with these unique issues. 

Christine has extensive continuing education and continues to love learning and growing as a therapist! She is trained in PROMPT, VitalStim (NMES) for swallowing, ABA, SOS Approach to Feeding, DIRFloortime Certified. She is trained in Oromyofunctional therapy through the IAOM, the TummyTime Method(TM), Oral Placement Therapy (OPT), and the SOFFI method for premature babies and medically fragile infants. She is also a Certified Lactation Supporter and Educator (CLSE). Additional post-graduate training and coursework in Autism, AAC, reading & literacy instruction, nutrition, and tongue ties has been completed. 




Amy earned her Master's in Speech-Language Pathology from the University of Maryland. She also earned her Bachelor's from Drew University. After completing clinical placements at Georgetown University Hospital and HSC Pediatric Center (formerly the Hospital for Sick Children) in Washington, D.C., Amy has worked with patients of all ages at skilled nursing facilities, for home health companies, and in private practice. She holds certifications in Beckman Oral Motor, the SOS Approach to Feeding, McNeill Dysphagia Therapy Program (MDTP), and Lee Silverman Voice Therapy (LSVT) for Parkinson Disease, and has training in Flexible Endoscopic Evaluation of Swallowing (FEES) and Orofacial Myology. While her clinical interests are predominantly in swallowing disorders (dysphagia), feeding, medically fragile children, and medical facets of speech pathology, she enjoys working with children, adolescents, and adults to improve all speech and language disorders. Since 2016, she has spoken a ton of Spanish, having lived and traveled in both Spain and Guatemala with her family, and has baked cakes semi-professionally.

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Arielle is an ASHA Certified Speech-Language Pathologist and is licensed in Virginia, Maryland, and Washington, DC. She earned her Bachelor’s and Master’s degrees from the University of Maryland.


Arielle has experience in both private practice and school-based settings. She has training in the areas of Orofacial Myofunctional Therapy, tethered oral tissues (TOTs), and PROMPT. Arielle has extensive experience with articulation disorders and preschool language. She has two young daughters who have both had tongue and lip ties, which has given her a new perspective in feeding and Orofacial Myofunctional Therapy.




Marley is a Speech-Language Pathology Clinical Fellow and is licensed in Maryland. She earned her Bachelor’s degree from the University of Maryland and her Master’s degree from University of the District of Columbia.


Marley has experience working with both adults and children in private practice and school-based settings. She has training in the areas of Orofacial Myofunctional Therapy and Tethered Oral Tissues (TOTs). She also has experience working as a pediatric Speech Pathology Assistant in the private practice setting before attending graduate school. Marley has a passion for helping individuals communicate effectively and reach their individualized goals!





Kate Izquierdo is the Office Administrator at Gladstone Speech. With a background as a Speech-Language Pathologist herself, she is uniquely suited to provide support to the Gladstone Speech team. Kate obtained her Master's degree from the State University of New York at Buffalo in Communicative Disorders and Sciences. Her Bachelor's degree was earned at the State University of New York at Geneseo with a double major in Spanish and Interpersonal and Organizational Communication.


Kate is the owner of L.E.I. Administrative Solutions, a virtual assistant company specializing in tailoring support to owners of speech and language private practices across the United States. Kate looks forward to supporting you to ensure your process of obtaining services is seamless and efficient, and will work diligently to connect you with a Gladstone Speech Clinician to meet your needs. 




Alexa Hernandez is an Administrative Assistant for Gladstone Speech. 

Alexa has joined our team after serving as an Elementary Educator for several years. Through her experience working with young children in schools, as well as having her own child with feeding and speech difficulties, Alexa is passionate about helping and empowering others. 


Alexa received both her Master’s degree in Education and her Bachelor’s Degree in Liberal Studies from Simpson University in California. Alexa is an exceptional communicator. From taking calls to scheduling appointments, Alexa’s top priority is to help meet the needs of everyone she interacts with.