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Staff

Mary Marasovich, M.A./CCC/SLP

Jack_Russell_Puppy_Eddi   Graduated from California State University, Stanislaus with a masters in speech pathology and a special education credential. I brought my experience in the public schools, hospitals, private practice and home health with me to Hawaii in 1986. Some of my specialized training includes PROMPT (Prompts for Restructuring Oral Muscular Phonetic Targets), the Lidcombe Stuttering Program, Lindamood/Bell Visualizing and Verbalizing, SpeechEasy anti-stuttering device dispenser, various accent modification programs, and continuing education in many areas. Over time I have developed many special interests which currently include Autism related disorders, Auditory Processing, Apraxia, Cleft Palate and Stuttering. I believe in patient driven treatment with family involvement and use approaches that fit the individual. I have a passion for all things speech related and contribute to the future of my field by training master's level interns and clinical fellows from all over the world. In January of 2015,  I completed a Clinical Supervision CEU course to sharpen my skills.   I served for many years on the Queen's Cranio Facial Board and provided video voice studies at Straub Hospital. While I enjoy my reputation as a workaholic, I do take advantage of living in this healing and magic place by kayaking, paddle boarding, walking and sailing with my husband and our dog, Mochi. While my profession is a joy, I am most proud of raising my 3 children to be wonderful adults and know that parenting has given me a compassion and caring for the parents and children who come to our clinic for answers.        

Samantha Hamilton, MS/CCC/SLP

Sammy graduated with her masters from University of Texas at Dallas in 2009.  She did her undergrad at Michigan State University. Sammy is a natural born SLP. She came to Oahu Speech with varied experience working with adults and children in Connecticut. Sammy lives in Kaneohe with her husband and their adorable dog.

Karen Evans, MS/CCC/SLP

Karen graduated with her masters from Florida State University in 2001. She has extensive experience with multicultural speech/language delayed children in the Washington D.C. area. She believes in treating the whole child and in always considering their backgrounds and family circumstances in her treatment.  Karen lives in Kailua with her husband and two adorable, active preschool boys.

Charlotte Freeman, MA/CCC/SLP

Olivia Uchima, MA/CCC/SLP

Olivia graduated from the University of Iowa with her bachelors degree in speech pathology. In 2014, she earned her Masters degree in speech pathology from the University of Massachusetts.  She recently completed her Clinical Fellowship, the final step in her training.  Olivia is now a licensed SLP. Among her achievements during her outstanding Clinical Fellowship Year was to help start a Hawaii chapter of the National Stuttering Association Support Group for adults who stutter.  Olivia loves learning  and giving back to her community.  She was born and raised in Hawaii and currently lives in Aiea.

Ellen Roos-Marr, MA,CCC,SLP

Ellen graduated from the University of Hawaii with her Masters degree in Speech Pathology.  She is a wonderful asset to her staff for many reasons. Ellen has varied experience in her 30 years of working in our field.  She worked with adults at Rehab Hospital of the Pacific and in the Department of Education with children. Ellen is married and has 3 children. Her favorite way to spend free time is biking, hiking and traveling with her family. Ellen lives in Kailua.

Geri O’Leary, MS/CCC/SLP

Geri graduated from the University of Omaha with her bachelors degree and the University of Hawaii with her masters degree. Geri has been working in our field since 1975 and her expertise reflects her vast knowledge and experience with all types of adult and childhood disorders. Geri brings with her an enthusiasm and compassion that has only grown with her professional experience. Geri is active in community service and lives with her husband in Honolulu.

Office Staff


Dale Enomoto

Dale has been keeping Oahu Speech running well for the past 10 years. She has a degree in English from the University of Hawaii but her main asset is her caring and helpful nature. Dale will assist you with scheduling, answer payment and insurance questions, give you directions and generally make you feel welcome.  Dale lives in Ewa Beach and has a close and large ohana there.