Contact Us

Meet With One Of Our Audiologists

We look forward to hearing from you and helping you with your hearing related questions.
– Dr. Sandra Wendschlag

For general information
Contact our Audiology Assistant Heidi at
Contact Dr. Sandra Wendschlag at

Contact Dr. Jovona Diggs at


Find Us
We are located in the Foothill Medical/Dental Center at the corner of W. Fremont Avenue and Mary Avenue. We are a few blocks off of Hwy 85 – just minutes from Los Altos, Cupertino, Mountain View, Santa Clara, Milpitas and San Jose. Our facility has plenty of accessible parking and is wheelchair accessible.

 Landmark Hearing address-map in Sunnyvale Office hours:
Mon-Thurs 9-5pm
Friday Closed
Closed Daily 12-1pm
(408) 773-9933
(408) 773-0325 Fax
Landmark Hearing Services, Inc.
877 W. Fremont Ave. Suite I-4
Sunnyvale, California 94087
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