Tanya Hanekom


Bianka Niebuhr
Bianka joined the practice in March 2019, after completing her master’s degree through the University of Pretoria and completing her community service year. Bianka is skilled in hearing aid programming and verification due to her astute nature, and attention to detail. Bianka enjoys paediatric audiology and demonstrates patience and joy when working with our youngest patients. She also enjoys auditory brainstem testing and vestibular testing which allows for deep diagnostic work with her patients. She experiences deep empathy with her patients and strives to make every appointment a memorable one.
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Ruqaiyah Essack


Amarah Rangraze
Amarah Rangraze joined Sandton Hearing & Balance in June 2025. She completed her studies at the University of the Witwatersrand in 2021, where she developed a strong foundation in audiology. She brings a strong passion for both hearing, balance and auditory processing, with a commitment to providing compassionate, personalized care.
With a focus on diagnostic testing, hearing aid fittings, and balance assessments, Amarah strives to provide personalized care for patients of all ages. Known for her attention to detail and compassionate approach, she ensures each patient receives the highest quality treatment.
Outside of work, Amarah enjoys staying active through sports, particularly swimming and padel, which help her maintain a balanced lifestyle and stay energized.
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Administrative Staff
Florence Otieno
Florence joined our practice in 2016 as the receptionist and today she is the Patient Care Coordinator (PCC) at the Mediclinic Sandton branch. She handles all appointments, billing, hearing instrument processing, orders and repairs. Florence has a wealth of experience in medical reception work having worked at orthopaedic surgery, cardiothoracic surgery and wound clinic amongst others. Originally from Kenya, Florence has been living in Johannesburg since 2006.


Valen Webster
Valen joined our team in July 2019 to fill the role of Accounts Manager. Valen deals with the medical aids, resolves queries and follows up on bad debt. Valen is also the warm presence of receptionist at our Bryanston Gate branch.