About

Dr. Chen chose the field of Internal Medicine because he enjoys caring for his patients and helping them find answers to their health issues.

I grew up fascinated by the Sherlock Holmes character, and the way author Sir Arthur Conan Doyle endowed the character with unique observation skills. Doyle also invented many investigative techniques for Sherlock that are still used by real-life, modern-day detectives.  I like to solve problems and an Internal Medicine physician is like a medical detective using sophisticated tools, tests, knowledge and a hypothetical “magnifying glass” to discover medical clues and formulate solutions.

Dr. Chen works with his patients to keep them healthy by focusing on preventative medicine, lifestyle choices, and educating them to know their important health numbers such as cholesterol and blood pressure. He not only enjoys caring for them, but he truly cares about them as well.

Away from the office, Dr. Chen enjoys working with computers, fruit tree gardening, and listening to country music.

Languages

English, Chinese, Mandarin

Provider Specialty

Internal Medicine, Primary Care

Areas of Care

Education

Medical School

University of Texas Health Science Center

1988

Internship Program - Internal Medicine

St Paul University Hospital Medical Center

1989

Residency Program - Internal Medicine

St Paul University Hospital Medical Center

1991

Locations & Affiliations

Locations

Insurance

Please consult your health care provider or health plan for the most accurate information about your health plan’s coverage of a particular health care service offered at a MemorialCare facility. Learn more about our Accepted Health Plans.

Patient Reviews

4.8 out of 5
(500 Ratings)
Sep 17, 2026
Linda L.
Dr. Chen is extremely thorough with patience in listening to the patient’s concerns, providing findings and the required next steps to recovery. I never felt rushed but always walked away well informed and educated to improve my health at the end of the visit. Thank you, Dr. Chen !
Sep 16, 2026
Joseph C.
Sep 16, 2026
Kathryn O.
He is very prepared for my appt
Sep 15, 2026
Hung T.
Sep 15, 2026
Linda K.
Sep 15, 2026
Melvin A.
Dr. Chen as my PCP has always studied my labs and also health feedback to analyze what would benefit me with personalized care.
Sep 4, 2026
Steve P.
Dr. Ihong Chen has been my family doctor for many years and I'm most grateful for his professionalism, concern, and ability to respond to my personal medical concerns. In addition, the staff and facilities at Memorial Care of Orange County are wonderful. The ability to communicate with my doctor and nursing staff and make appointments is outstanding; both thru messaging and direct phone calls. Steve Pavich, Fountain Valley, CA
Sep 4, 2026
Hector R.
He has a lot patience, and explain everything very well!. Thank you Doctor.
Sep 3, 2026
consuelo o.
Aug 14, 2026
Helen D.
The best primary doctor that i have, I changed many drs due to my insurance changes and changed one dr at this facility due to her difficult personality and luckily found this doctor as my primary care physician ‍. He is very caring and not rush at all, he takes his time to make sure answer every single concerns you have and very supportive! Very good at listening that what's doctors should have.

Source: Reviews are aggregated from third-party review sites such as Facebook, Google, HealthGrades, RepuGen, Vitals, WebMD, and Yelp.