Our Staff

Dr. Sandra Wendschlag has been practicing Audiology since 1986. She worked for a large audiology group for 11 years prior to opening Landmark Hearing Services in 1997. She is a licensed professional and maintains her continuing education hours. She received her Master's degree at San Jose State in 1986 and her Doctorate degree through Arizona School of Health Sciences in 2003. She was named Sunnyvale's "Audiologist of the Year" by the Consumer Business Review. She has received the Bucharest Street Children's Project:"Hope Giver Award". She has traveled to Tanzania to provide hearing help with solar powered hearing devices for those with limited options. She donates assistive listening systems to local Houses of worship and is helping to "loop" the SouthBay to make it more compatible with current hearing devices.

Katherine Knowles has been providing hearing solutions in the South Bay since 1986. She received her Master's degree in Audiology from San Jose State in 1986. She specializes in fitting digital technology. She is familiar with ALL of the major manufacturer's product lines and is continually keeping us updated about the latest technology. She spends plenty of time with each patient, so no one ever feels "rushed". She assists Landmark Hearing in our educational seminars offered at least twice each year to the public.