Diesje Hiltemann
About
Diesje Hiltemann is a caring and experienced Occupational Therapist who has been supporting people across the lifespan for more than 30 years. She speaks English, Dutch, and Afrikaans, and brings a gentle, thoughtful approach to every home, clinic, and community setting she visits.
With over three decades of practice, Diesje has worked with individuals of all ages and abilities. She supports people living with stroke, ALS, MS, acquired brain injury, dementia, autism, mental health challenges, and those receiving palliative or end‑of‑life care. Families appreciate her calm presence, her ability to truly listen, and her commitment to helping people feel safe, understood, and supported.
As an ADP Mobility and Seating Authorizer, Diesje also helps clients find the right mobility solutions to stay comfortable and independent. She has extensive experience with walkers, manual and power wheelchairs, scooters, and complex custom‑molded seating. Her focus is always on ensuring that equipment fits the person—not the other way around.
Diesje has advanced training in feeding, oral‑motor development, and sensory processing. She is trained in TalkTools® Oral Placement Therapy (Level 4), the SOS Approach to Feeding, Get Permission, and TR‑eat. This allows her to support people with a wide range of feeding needs, including picky eaters, problem feeders, individuals transitioning from g‑tube feeding, infants with breastfeeding challenges, and those with differences in muscle tone or craniofacial structure.
She also works with people who experience sensory processing difficulties—whether they become overwhelmed by everyday sensations or seem under‑responsive to the world around them. With training in Therapeutic Listening®, Astronaut Training, Ayres Sensory Integration, and Neuro‑Developmental Treatment (NDT), she creates supportive, engaging sessions that help individuals build confidence, motor skills, and independence in daily routines.
People often describe Diesje as someone who “thinks outside the box” and never gives up on finding the right solution. She believes every person deserves to feel capable and supported, and she brings that belief into every interaction.
When she’s not working, Diesje enjoys tinkering with electronics, programming, and anything tech‑related; always curious, always learning, and always thinking of new ways to help the people she works with thrive.
Areas of Focus
- Mobility Aid Assessment (Wheelchair/scooter/seating assessment and prescription)
- Amputee Rehabilitation
- Cancer Rehab
- Cognitive Behavioural Therapy (OT)
- Cognitive Job Coaching
- Cognitive Rehabilitation
- Concussion care
- Delayed Development Rehabilitation and Management
- Disability Tax Credit Assessment
- Ergonomic Assessment
- Functional Job Coaching
- Guillain-Barré Syndrome Rehabilitation
- Multiple Sclerosis Rehabilitation
- Occupational Therapy
- OT Home Assessment
- OT Home Modifications
- OT Living Care Benefit Assessment
- Pain Management
- Parkinson's Rehabilitation and LSVT BIG program
- Post COVID-19 Rehabilitation and Recovery
- Pre/Post Natal Care
- Sensori-Motor Neuro-Rehabilitation for Learning Disabilities
Languages
- English
- Dutch
- Afrikaans
Learn more about Lifemark services
Physiotherapy
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Occupational Therapy
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Kinesiology
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