David Girard, PT., CHT.
physical therapist/ certified hand therapist, partner

David has practiced physical therapy for over 30 years and is a Certified Hand Therapist with 23 years of experience in the specialty. David has served the Santa Clarita and San Fernando Valleys for 21 years as a skilled clinician, a leader, and an educator. David’s experiences have included working with and treating people with neurological ailments and individuals with orthopedic conditions by designing and hand making sophisticated, individualized splints, managing complicated fractures, tendon ruptures, digital and hand replantations, and managing and directing several clinics as well as operating his own business.

David’s diverse experience, knowledgeable instruction, and soothing demeanor is reassuring to both the adult and the teen patient, with whom he is particularly accomplished guiding them through an individualized rehabilitation program aimed at future injury prevention.

David uses his comprehensive insight and observation to help guide current and future generations of therapists. He has done this by mentoring and lecturing extensively in various areas of Hand Therapy such as joint mobilization of the upper extremity, introductory and advanced splinting, introduction to hand therapy courses, and physical agent modalities. David has also contributed to the literature and text books by co-authoring on subjects like the treatment of carpal tunnel syndrome.

Susan DiMartini, MSPT, OCS

Susan DiMartini MSPT has been with Santiago P.T. consistently since May of 2016. She received her degree from DeMoines University in 1996 and has practiced on the east coast as well as various locations in the Santa Clarita Valley. She has worked exclusively in orthopedics since 1998. In 2008, she became an Orthopedic Certified Specialist. In her spare time, she likes to hike and travel with her husband. She is also a member of Toastmasters of Santa Clarita Valley where she is refining her speaking skills.

Andrew Matulich, Physical Therapy Technician

Andrew lives here in Acton, and earned his degree in Kinesiology, specializing in Exercise Science in June 2015. He is currently applying to PT schools. Subsequently, he plans to continue his education and obtain his Doctorate Degree in Physical Therapy. He works side by side with the Physical Therapist and is a strong asset to Santiago Physical Therapy with his knowledge and professionalism.

Colleen Marie, Front Office

After a twenty-one year career in operations with the Los Angeles Times, and working in the business of liquidating personal property, Colleen has switched gears since moving to Agua Dulce in 2012. She has been with Santiago Physical Therapy since April 2014 and handles admitting, verification of benefits, and authorizations. You can expect to be treated with care, kindness, professionalism and a smile each time you call or walk through our doors.

David Hubert, MOT, OTL, CHT.
occupational therapist/ certified therapist, partner

David graduated from Saint Francis University in the mountains of Pennsylvania with his Master’s degree of Occupational Therapy at the age of 23. Passionate from the start about the complexity of the hand’s grace, it’s diversity of skill, and it’s capacity for power, David has specialized solely on rehabilitating and enhancing the function of the hands and upper limb for the past 14 years. David’s approach is meticulous and unique as he examines the entire upper limb in order to appreciate how these complicated structures function in concert with your complete body while they are carrying, creating, and manipulating. As an occupational therapists, David is focused on functional performance and his patient’s independence whether their injury affects their work, self-care, and/ or leisure. This elbow-deep, hands on approach creates a unique experience for each distinctive person.

Josephine Mickelsen, OTR/L

Josephine Mickelsen, OTR/L graduated from California State University Dominguez Hills and specializes in upper extremity rehabilitation. She has earned California Advanced Practice in Hand Therapy, and is working towards a Certified Hand Therapist credential. Josephine's background is in coaching outdoor sports and teaching yoga, and she loves collaborating with patients to help them get back to the activities that they love - anything from being able to pick-up their grandchildren to swinging a golf club. When not with patients, Josephine enjoys exploring local outdoor spaces through camping, climbing, trail running, and gardening.