Who We Are


Micheal Williams, MA, CCC-SLP (Owner, Speech Therapy Supervisor)

Micheal is the owner and lead speech therapist at WSTS. He graduated with a Bachelor’s Degree in Communication Sciences and Disorders in 2010 and a Master’s Degree in Communication Sciences and Disorders in 2012. He has worked in acute, inpatient, home health, and outpatient settings with both pediatric and adults clients who have deficits in speech, language, voice, and/or cognition. He has additional training and experience in care of tracheostomies, and assisting clients with Augmentative and Alternative Communication devices.


Erika Williams, OTR/L, CHT (CFO, Occupational Therapy Supervisor); Advanced Practice: Hands Therapy, Physical Agent Modalities

Erika is the CFO at Williams Therapy. She graduated with an Associate of Science Degree in Occupational Therapy with Departmental Honors, High Honors in 2007. She then worked as an occupational therapy assistant in acute and inpatient rehab. She continued her education and during her Bachelor’s program she was part of Phi Kappa Phi Honor Society (top 5%), Golden Key International Honor Society (top 15%), and Psi Chi Honor Society (Psychology honors). She graduated with a Bachelor of Arts Degree in Psychology, Summa Cum Laude, from California State University, Chico in 2011. For her Master’s Degree she was awarded the Texas Woman’s University Graduate Student Scholarship and was part of Phi Kappa Phi Honor Society (top 5%) and the Golden Key International Honor Society (top 15%). Ultimately, she graduated with her Master of Arts Degree in Occupational Therapy from Texas Woman’s University with high honors in December 2014. She has experience working in acute, subacute, long-term acute, inpatient, home health, and outpatient with both pediatric and adult clients with orthopedic, neurological, and medically complex problems. Her area of interest is in the rehabilitation of the upper extremity. She is a board certified hand therapist. She currently has her advanced practice in hand therapy and physical agent modalities. She has received training via mentorship and is adept at making custom splints/orthoses.

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Paravee Prakongsup, MA, CCC-SLP

Paravee Prakongsup is a licensed speech language pathologist (SLP). She graduated Magna Cum Laude from California State University, Los Angeles with a Master of Arts in Communication Disorders in 2018. She has experience working with pediatric and adult clients who have various types of disorders including articulation and language delays or disorders, fluency disorders, literacy delays and difficulties, autism, Down syndrome, voice disorders, swallowing disorders, cognitive-communication disorders as well as tracheostomy and ventilator dependent patients. She has worked with nonverbal children and adults that could benefit from low and high tech Augmentative and Alternative Communication devices. Paravee has worked in multiple settings including schools, hospitals, rehabilitation facilities including subacute and long-term acute care, and both inpatient and outpatient care.

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  Madalyn Petrovich, M.S., CCC-SLP

Madalyn is a licensed speech-language pathologist. She graduated with a Master’s in Science in communication sciences and disorders in 2018. She has experience working with pediatric and adult populations with a variety of communication disorders including speech-language delays, global developmental delays/disorders, fluency disorders, voice disorders, speech sound disorders, cognitive-linguistic disorders, aphasia, and apraxia of speech. She also has experience working with augmentative-alternative communication devices

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Karen Brown M.S., CF-SLP

Karen is currently completing her Speech and Language Pathology Clinical Fellowship. She graduated with Honors from the University of California in Santa Barbara with a Bachelor of Arts in Linguistics with a focus on Communication Sciences in 2018. She then completed her Master of Science in Speech and Hearing Sciences at Washington State University, graduating in May of 2021. She has experience working with all ages across various settings including inpatient hospital care focusing on stroke rehabilitation, outpatient pediatric care, public school, and skilled nursing facility. She has experience in, and a passion for, working with dysphagia and swallowing treatment, cognitive rehabilitation following injury, and neuro-pathologies.  Her approach to therapy is dynamic and focused on the person as a whole, while centering around Evidence Based Practices. In her free time, Karen enjoys watching movies and cooking with her family.


Sandra Paz, BA, SLPA

Sandra graduated from California State University Northridge with a BA in Communication Disorder and Sciences in 2021. She then proceeded to obtain her Speech Language Pathology Assistant license in 2021. She has been working directly with children providing speech/ language services to a diverse and multicultural population who struggle with a variety of speech and language disorders including autism, developmental delays, expressive/receptive language disorders, developmental apraxia of speech, and articulation/phonological disorder. She is interested in furthering her knowledge by getting her Master’s degree and becoming a Speech Language Pathologist in the future. During her free time, Sandra loves to spend her time outdoors running or hiking, trying new foods and catching up on missed television.

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Nely Correa, BA, SLPA

Nely graduated with a B.A. in Communication Disorders and a minor in Child Development in 2021. Prior to obtaining her SLPA License, Nely was a family home daycare administrator where she developed monthly curriculums, led classrooms activities, and administrative duties. Nely has worked as an ELD bilingual Instructional Assistant and Special Education paraprofessional for 3 years within LAUSD district. She has experience working with children ages 3 months to 18 years old. She has experience working with various types of disorders including autism, Down syndrome, and communication disorders. Nely is fluent in both Spanish and English. She is pursuing her MA degree in Speech this following year. In her free time, Nely loves traveling and enjoys adventures outdoors.

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Angela Chung, MS, OTR/L, CHT

Angela graduated from California State University, Dominguez Hills with a Master of Science in Occupational Therapy in 2013. She worked in pediatrics providing Early Intervention services and sensory/play-based occupational therapy to children with Autism Spectrum Disorder, Down Syndrome, Cerebral Palsy, Sensory Processing Disorder, feeding difficulties, and developmental delays in both home and clinic settings. In 2015, Angela transitioned to specializing in hand therapy. She treated a range of orthopedic cases in the adult population including conservative and post-operative tendon injuries, peripheral nerve injuries, fractures, sprains, arthritis, overuse/pain syndromes, etc. She utilizes clinical reasoning skills to provide individualized treatment in rehabilitating each client’s unique upper extremity deficits and improving their meaningful functional outcomes. Angela obtained her advanced practice in hand therapy and physical agent modalities and has been a certified hand therapist since 2017.

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 Emily Grullón., OTR/L, OTD

Emily is a graduate of Nova Southeastern University’s Doctor of Occupational Therapy Program. Currently, she works as a clinical occupational therapist in an outpatient clinic as a hand therapist, in addition to working as an adjunct occupational therapy professor at West Coast University.  In the clinic she goes by Emily, however in an academic setting, she goes by Dr. Grullón. She has been published in peer-reviewed journals and has been invited to speak on podcasts and universities for her work on occupational justice, in addition to her work on the role of cannabinoids in pain management and function. She has worked as a hand therapist since starting her clinical career as an OT in 2018. Emily has worked under the supervision of board-certified hand surgeons in Denver, Co and Los Angeles, Ca. She has accrued over 4,000 hours of Direct Practice Experience required to become a Certified Hand Therapist and plans on taking the exam soon.  Due to her extensive work and research on occupational justice, in practice, she not only focuses on treating the condition, but instead on treating the individual holistically, with a focus on reducing health inequities through an occupational justice lens. She believes that as occupational therapists we must look beyond the medical model to be truly client centered. In her free time, Emily spends time with her dog Pippa and enjoys adventures in the great outdoors.  


Hallie Spigelman, MS, OTR/L

Hallie graduated from West Coast University in 2018, with a Master of Science in Occupational Therapy. While at West Coast University, she earned the Honorary Academic Achievement Research Award. Proceeding schooling, Hallie worked in a highly specialized outpatient hand therapy clinic where she treated diverse diagnoses of the shoulder, elbow, wrist and hand. She had direct communications with hand surgeons, which allowed for personal care, optimal functioning and regaining of independence. Hallie obtained her advanced practice in physical agent modalities in 2020 and continues her practice of hand therapy at Williams Therapy Services. Here, she creates personalized treatment plans for each patient to get them back to doing what they need, and love to do with their hands. Hallie is excited to be a part of the Williams Therapy Services team where she hopes to continue to ease suffering and improve the quality of all lives.


Christian Virtucio, COTA/L

Christian graduated with a B.S. in Kinesiology from California State LA in 2017. Through his time at CSULA, he participated in the PACE program which specialized in pediatrics through an adaptive PE setting. Prior to obtaining his COTA license from in 2021, Christian taught as a 1:1 instructor for the La Canada School District. Christian has developed experience and gained clinical hours with both children and adults. He has worked with a variety of diagnoses such as Autism Spectrum Disorder, Down Syndrome, ADHD (behavioral disorders), stroke and TBI (CVA) — and has also treated physical amputees and patients with sports related injuries while completing clinical hours. He takes pride in helping others through a holistic approach, which is why he fits OT! When out of office, Christian enjoys time with family and friends, sports, exercise, and also tutors on the weekends.

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Rachel Munar-Villasista, COTA/L

Rachel graduated with a B.S. in Sociology with an emphasis on Medical Sociology from Mount St. Mary’s University (Cum Laude in 2018). During her time at MSMU, she participated in the PALS program in Santa Monica which involved helping the youth develop skills and self-esteem that encouraged them to reach their full potential through education, cultural, recreational and outreach programs. Prior to obtaining her COTA license from Stanbridge University (Summa Cum Laude in 2021), Rachel worked as an ABA therapist and provided behavioral intervention services using evidence-based techniques to children with Autism and other developmental disabilities in their home settings. She also has past experiences servicing at a community-based pediatric school, skilled nursing facility, and outpatient clinic for adults and pediatrics. She has provided rehabilitation services for the elder population with chronic diseases such as dementia, arthritis, COPD,  cancer, and helped adults recover from an injury or surgery, as well as treat specific issues such as improving their range of motion, endurance, and overall motor skills. Her creative mindset has led her to creating progressive treatment strategies that continue to motivate her clients to reach their goals. During her free time, she loves going to Disneyland, the beach, and spending time with family and friends.


Cynthia Quinonez, COTA/L

Cynthia graduated from California State University Northridge with a BA in Child Development and Psychology in 2018. While studying at California State University Northridge Cynthia worked as a ABA Therapist, where she was able to collaborate with OTs, STs, and Pts. After being in the field for 5 years as an ABA therapist she decided to go back to school to continue her education in becoming an Occupational Therapist Assistant. With her 6 years of experience as an ABA therapist Cynthia has gained expertise working with the pediatric population with a variety of needs such as ASD, ADD, ADHD, Down syndrome, and more. She loves working with children and has a unique approach to success. She has clinical experiences in the home, clinic, and school settings.  She has a passion for helping children and their families thrive in their everyday lives. When out of the office Cynthia loves to spend time with her family by going to Disneyland, soccer games, and hiking. 


Jeremy Kyle Corpuz, COTA/L

Kyle is a graduate student of Community Based Education And Development with an Associate of Applied Science (A.A.S.) degree in Occupational Therapy Assistant (OTA). During his time at CBD College, he was the Fundraising Chairman of the official student organization of the school for the OTA department. He has worked with both adults and children during his clinical hours and is especially interested in hand therapy and technological advancement in occupational therapy. He is interested in furthering his knowledge and practice in the rehabilitation field by getting a bachelor degree in Health Sciences and a Master’s degree in Occupational Therapy in the future. Prior to becoming an OTA, he attended the Polytechnic University of the Philippines pursuing a bachelor’s degree in journalism where he was a part of the President’s Listers of the institution. Due to this experience, he developed an eye for detail, an inventive mindset, and resourcefulness that translated well in providing OT services. When not at work, he likes to spend his time writing fiction and essays for scholarships and playing text and computer games; especially CYOA, 8-bit inspired, and turn-based games.

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Mary June Nocete, DPT

Mary June Nocete is a licensed Physical Therapist in California since 2010. She graduated from University of Santo Tomas, Manila, Philippines in 2008. She has worked in a variety of settings including Acute, Sub-acute and Long-term Care, Home Health, Acute Rehabilitation Units, Adult Day Health Care, Worker’s Compensation, Concierge Physical Therapy, Outpatient services and Tele-Physical Therapy. She is a Certified Lymphedema, Wound Care and Oncology Rehabilitation Therapist with experience in interdisciplinary care coordination, case management practices and patient care experience.

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Dr. Anthea Pitysingh PT, DPT

Anthea is a licensed Doctor of Physical Therapy in California since 2019. Graduated in 2016 from Florida International University in Miami. After graduating, she worked for one year in an outpatient orthopedic clinic, where most diagnoses included: post surgeries and sports/athletic related injuries and general conditioning. In 2018, she took the opportunity to become a travel Physical therapist where she was able to travel/live and work in the cities of: Boston, MA, Brooklyn, NY and Charlotte, NC. She was able to gain extensive knowledge in many different settings including: acute care, skilled nursing facilities, inpatient rehabilitation and schools, gaining hands on experience with patients diagnosed with stroke, TBI, multiple sclerosis, paraplegia, vestibular conditions, balance disorders, autism, as well as orthopedic cases and much more. During her last travel contract placed in Los Angeles, CA, she decided to make California her permanent home and is now working and continuing her journey as a Doctor of a Physical Therapy at Williams Therapy Services. Aside from her career as PT, she enjoys hiking, spending time with family/friends, exploring different foods/cuisines and learning new skills, such as pottery which she just started!

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Iceal Dorado, BA, PTA

Iceal graduated from California State University of Northridge with a Bachelor’s Degree in Kinesiology: Exercises Science in 2018. During his time there, he volunteered at the Center of Achievement where he was trained to provide both aquatic and land-based therapeutic exercise programs for individuals with special needs. He also had the opportunity to volunteer at a school where he developed and implemented activities to promote motor development for children between the ages of 4-7. After graduating from CSUN, he worked under an occupational therapist/hand therapist and received training to treat different upper extremity diagnosis of shoulders, elbows, wrists, and hands. Shortly after, he worked for a Chiropractor and gained experience treating spinal injuries from accidents, degeneration, and post-op. In 2021, he graduated from his PTA program at Concorde Career College with Honors. During his clinical rotations, he was assigned to work in outpatient, inpatient, and home health settings. He has been exposed to different disciplines of Physical Therapy including geriatric, orthopedic, cardiopulmonary, neurology, wound care, prosthetics, and currently working with pediatrics at Williams Therapy Inc. He is eager to learn and interested in expanding his knowledge in PT and hoping to get his Doctorate Degree in Physical Therapy in the next 5 years. Outside of work, he likes to spend time outdoors camping, hiking and rock climbing. He also likes to train and run marathons, sometimes raise funds for charities.  


Carissa Dizon, Office Manager

Carissa studied Musical Theatre at the American and Musical Dramatic Academy in Hollywood. Her previous work experience as lead front office scheduler and senior intake coordinator have prepared her for her role at Williams Therapy. She is excellent with scheduling, coordinating care with physician’s offices and insurance companies, as well as assisting patients and staff as needed. Her passion for integrating personal and virtual communication has become an aide to our company’s marketing. Carissa is also fluent in English and Tagalog. 


Cynthia Esteban, Back Office Assistant

Cynthia provides both front office and administrative support to the Williams Therapy Services team. She is currently attending Cal State University, Northridge in pursuit of a bachelor’s degree in Public Health Administration. As an experienced customer service representative, she is able to aid and adapt in various settings. Her versatility is enhanced due to her fluency in English and Spanish. During Cynthia’s free time, she loves to volunteer, cook, and travel.

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Emily Davine, Eligibility and Billing Assistant

Emily is currently in a graduate program at Antioch University for Marriage and Family Therapy. She graduated in 2017 with a BA in Psychology from California State University Channel Islands. Emily hopes to get her PsyD one day and have her own private practice working with adolescents and young adults. Her previous work experience includes customer service in retail and health insurance. She has applied her knowledge of health insurance to William’s Therapy Services and helps with collections, claims, and checking insurance eligibility for patients.

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Gissella Altamirano, Front Office Assistant

Gissella is currently a student at California State University of Northridge. She is majoring in Child and Adolescent Development along with minoring in Family Studies. Her previous work experience includes office assistant and childcare. She also has volunteer experience at the Child Development Institute where she created programs to help children reach their developmental milestones. Her experience has helped apply her skills here at Williams Therapy Services. She is fluent in both Spanish and English. Along with assisting therapists and families with translation, she also helps in scheduling, answering phone calls and other various tasks.

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Yessenia Acosta, Front Office Assistant

Yessenia graduated from Los Angeles Mission College with an AA in Sociology. She previously worked as an ABA therapist and front desk receptionist at a pain management clinic. Her previous work experience has helped her develop the necessary skills and friendly attitude needed for this position. She is looking forward to seeing how her other skills can be of use at Williams Therapy Services. Yessenia is also fluent in English and Spanish.