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Yong Sik Kim, MD
Practice accepting new patients.

Yong Sik Kim, MD

(714) 477-8320
Primary Specialties
  • Internal Medicine
Medical Groups & Affiliations
  • Hoag Affiliated Physicians
  • Hoag Medical Group
  • Additional Languages Spoken
    Spanish, Korean, English

Primary Office

kensington park dr
15000 Kensington Park Drive
Suite 250
Tustin, CA 92782
(714) 477-8320

Physician Bio

As a young child, Dr. Kim developed a love for science and math and knew from an early age that medicine was his calling. He had always admired the career as an honorable and rewarding profession and thus, set on his way to pursue his dream.

Dr. Kim has been practicing medicine for nearly 15 years and during that time, he has been afforded the opportunity to treat a wide variety of adult patients in many capacities. Whether it is a preventative screening or a complex chronic condition, Dr. Kim approaches each patient with a kind and professional approach.

He prides himself on providing in-depth patient care and simultaneously, getting to know his patients over time. When it comes to practicing medicine, Dr. Kim states, “I aim to be thorough and help guide my patients to a happy and healthier life. I strive to always take the time to listen to my patients and make sure they are heard.”

Fluent in Korean and Spanish, Dr. Kim received his medical degree from Hanyang University in Korea and continued on to complete his internal medicine residency at Texas Tech University Health Science Center. In addition to being board certified in internal medicine, Dr. Kim is also board certified in obesity medicine.

Outside of work, Dr. Kim enjoys spending time with his wife and twin children as well as golfing, skiing, and travelling.


Diplomate, American Board of Internal Medicine

Areas of Interest


Insurance ID Numbers

Aetna - 451303
Anthem Blue Cross - YNL299
Blue Shield - 0A1124542
Cigna - 4344575028
Cigna Select - 4344575030
HealthNet – 3620196821
SCAN – 996-777867
United Healthcare - 0279630136
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