Meet the Doctor



 John H. Ko, DDS   is your family dentist!

Proud to Provide High Quality Care for One Patient at a Time!

As your dentist, I want to make sure that every dental treatment you receive gives you yet another reason to stay smiling.  I am dedicated to creating a superior dental experience for all my patients.  My goal is to meet your needs and exceed your expectations.  You can count on me to thoroughly explain every procedure and answer all your questions.  More importantly, you can trust that I will use my training and experience not only to give you a great smile, but to ensure that you are 100% comfortable, 100% of the time.

Commitment to Education

I was born and raised in Toronto, Canada.  I obtained both my Bachelor of Science degree in Microbiology/Biochemistry and subsequently my Doctor of Dental Surgery DDS degree from the University of Toronto in 1991.  I received the Royal College of Dental Surgeons board certification in 1991 and the California State Dental Board certification in 1996.

Continuing education is an important part of my job as your dentist.  I participate in continuing education every year in order to stay current with the latest advancements in dentistry.  I am a member of several prestigious dental organizations, including the: American Dental Association, California Dental Association, and Southern Alameda County Dental Society.

Commitment to Family and Community

After graduation in 1991, my wife and I moved from Toronto, Ontario to British Columbia and started a dental practice in North Vancouver.  Eventually we moved to the Bay Area in 1997 to be closer to family.  We have been in Pleasanton for over 15 years.  We are proud to call Pleasanton our home and we love being part of such a wonderful community.  I am truly blessed with a loving family.  I am married and have two sons.  In my spare time, I enjoy golfing, hockey, skiing and playing the piano.

With great pleasure, I look forward to working with you, and sharing many years of beautiful, happy smiles.


Proud to provide high quality and gentle care for one patient at a time.  We specialize in: Composite Fillings, Dental Implants, Porcelain Crowns, Porcelain Fixed Bridges, Porcelain Veneers, Teeth Whitening, Invisalign, Dentures, Root Canal Therapy, Oral Cancer Exam, Hygiene / Periodontal Health, Fluoride Treatment, Sealants, Nitrous Oxide (Laughing Gas), Digital X-Rays, and Pain Free Dentistry.
Excellence in Cosmetic & Family Dentistry through patient education, prevention and service. Pleasanton Dentist Dr. John H. Ko sets high standards and goals to meet your dental needs. You can count on Dr. Ko to thoroughly explain every dental procedure and answer all your questions. Dr. Ko is dedicated to offer quality and gentle dental care in a stress free environment for adults, teens, and children in Pleasanton, Livermore, Dublin, San Ramon, Danville, Castro Valley and the surrounding Alameda County communities.

Our beautiful office is conveniently located at 5720 Stoneridge Mall Road, Suite 200, Pleasanton, CA 94588.



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