Cal Sinus News


California Sinus Centers Welcomes Dorothy Yip, PA

Posted February 26th, 2019

We are pleased to announce a new member to the Cal Sinus family, Dorothy Yip, PA! Dorothy is a board certified Physician Assistant specializing in Otolaryngology (ENT) and Internal Medicine. Dorothy will be working with Dr. Karen Fong in our Walnut Creek location and will begin seeing her own patients later in 2019. Dorothy is originally from Hong Kong and is fluent in Cantonese and conversational Mandarin. In her free time, Dorothy enjoys hiking, swimming, and spending time with her “fur babies”. Please join us in welcoming Dorothy to the CSC family!

Learn more about Dorothy Yip, PA-C


California Sinus Centers Walnut Creek – New Location

California Sinus Centers Walnut Creek will be moving to a new location! Dr. Karen J. Fong and her team will be joining the growing group of physicians practicing at the BASS Medical Group main office at 2637 Shadelands Drive, Walnut Creek, CA 94598. Dr. Winston Vaughan will continue seeing East Bay patients at this location as well. Though the new Walnut Creek location will not have a CT scanner on-site, patients will still have access to imaging services through other providers in the BASS Network.

Dr. Fong’s first clinic day at this location will be Monday, March 25, 2019. If you have any questions or concerns regarding this move, please call our office at (925) 300- 4680.

Dr. Vaughan’s first clinic day at this location will be Friday, April 5, 2019. If you have any questions or concerns regarding this move, please call our office at (650) 399-4630.

*Dates are subject to change*

Click here to download (pdf) map to new location


California Sinus Centers welcomes Dr. Patrick Stevens to the practice.

Dr. Patrick Stevens joins us from the University of Connecticut where he completed his residency in Otorhinolaryngology-Head and Neck Surgery.  Dr. Stevens is an accomplished otolaryngologist with a special clinical interest in advanced rhinology procedures and skull base tumors.  His research efforts are directed towards understanding the etiology of chronic sinusitis and cellular changes in sinus tissue that lead to chronic inflammation. He will be seeing patients at our Atherton and Walnut Creek offices.


Welcome New Staff Members! 

In anticipation of our expansion to the South Bay you will likely see some new faces around the office. Sadly, John will be leaving Cal Sinus to join our partners in Sacramento at the Allergy Station.  This is an excellent opportunity for John that moves him closer to extended family and allows his active, growing boys more space in their new Sacramento area home!  We are excited to have Ashley join our Atherton team as lead receptionist!  Welcome to all of our new staff members!

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