Find Doctors and Dentists Near You
The location you tried did not return a result. Please enter a valid 5-digit Zip Code.

You can also search by physician, practice, or hospital name


Dr. Prasit Ben Vassantachart, MD

Geriatric MedicineInternal Medicine


I was born in Bangkok, Thailand. From a young age, my mother taught me the importance of education and service to others. With these values in mind and following the footsteps of my grandfather and brother, I decided to pursue a career in medicine. After high school, I came to the United States and attended colleges and medical school along with residency training in Southern California. I also worked for the Loma Linda Faculty Medical Group before joining Kaiser Permanente in 1989. My wife and I have three children. We all love to volunteer in various community activities: churches, libraries, hospitals, schools, health fairs, international missions, and sports events. Recognizing the importance of exercise, I spend a considerable amount of time promoting and helping many people in the sport of running and triathlons.


Dr. Vassantachart's Rating

Be first to leave a review

Be first to leave a review


9961 Sierra Ave
Fontana, CA, 92335
17284 Slover Ave
Fontana, CA, 92337


Medical School
Loma Linda University School Of Medicine
Graduated 1985
Loma Linda University School Of Medicine
Graduated 1978
Loma Linda University Medical Center


Please verify insurance information directly with your doctor's office as it may change frequently.
  • Kaiser Permanente
  • California - Southern
  • Kaiser Permanente California - Southern
  • Kaiser Permanente - Southern CA HMO



Data Transparency and Trust: Understanding WebMD Doctor Listings and Reviews

We know that finding the right doctor or provider is important to your health. That’s why we want to ensure you have confidence in the provider profiles and listings you see on WebMD Care. Our provider data is sourced from the physicians themselves as well as publicly available databases. Any doctor or provider who claims their profile by verifying themselves can update their information and provide additional data on their specialties, education, accepted insurances, conditions they treat, and procedures they perform.

All the physician and provider reviews on WebMD Care are provided by users just like you. Knowing these reviews provide insight into how other patients feel about a doctor, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Providers are not able to remove or modify reviews on their own. Reviews can only be removed after an internal review by our customer service team.

We value your input and encourage you to reach out to our support team if you encounter any issues.