Our Doctors

  • Koushyar Keyhan,

    Dr. Keyhan has over 20 years of experience in clinical dentistry. He graduated in 1998 from McGill University in Montreal, Canada and subsequently completed a 2 year General Practice Residency (GPR) in Brooklyn, New York. He then moved to San Jose, California and entered into private practice, while being a part-time clinical instructor at UCSF School of Dentistry.

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  • Sheila Nguyen, DDS, MS
    Board-Certified, Pediatric Dentist

    Dr. Sheila Nguyen has been part of the multi-specialty team at Prospect Dental Care since 2017. She is a Bay Area native. Growing up, she was a student-athlete, receiving her high school diploma from Saint Francis High School and her Bachelor of Science degree in Human Biology from the University of California San Diego (UCSD). 

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  • Siamak Madani,

    Dr. Siamak Madani is a specialist in the fields of periodontics and dental implants. He completed both his dental school training and specialty program at the University of Pennsylvania in Philadelphia, PA.

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  • Tiffany Bui,

    Bio Coming Soon...

  • Alan Chee,

    Dr. Chee is a second generation dentist from San Francisco. After completing his undergraduate studies at UCLA, he earned his DDS at the University of the Pacific and completed a 1-year general practice residency at the Jesse Brown VA in Chicago, IL.

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Hours of Operation

Our Regular Schedule


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


Limited Service