Isaac K. Kim MD | Family Medicine Physician | Downey, CA | PIH Health
Isaac Kwangnyon Kim

Isaac Kwangnyon Kim MD


Family Medicine
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4.6 / 5 (based on 207 Reviews) View 41 Comments

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Dr. Kim chose a career in medicine to help people and do something that challenges him daily. Like his father, he had a nagging curiosity about what could help people become healthier. Since 2004, he continues to appreciate his work both as a personal physician and as a faculty physician teaching and supervising young physicians. Previously, Dr. Kim served as a United States Army physician and was deployed to both Afghanistan and Iraq. He is very close to his wife and three children. In his spare time, Dr. Kim loves to read, watch movies and documentaries, spend time outdoors and play tennis when he can. He enjoys small talk and takes interest in history, cultures and technology.

Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Downey Hospital

PIH Health Physicians





Family Medicine


  • Korean



Reading Hospital and Medical Center (Pennsylvania)


Martin Army Community Hospital (Georgia)

Medical Education

Texas Tech University Health Science Center (Lubbock)

Board Certifications

Hospice and Palliative Medicine (Sub-Spec Cert)

Family Medicine (General Cert)


Accepted Insurance Plans and Physician ID Numbers

  • Aetna - 1170858

  • Anthem Blue Cross (paper/online enrollment) - 0AF484

  • Anthem Blue Cross (Phone Enrollment) - 0001484

  • Blue Shield - 00A879723

  • Blue Shield IPA # - IPA0686GH

  • Health Net - 3368-107654

  • Health Net Senior - 5162-107654

  • United Healthcare - 0002486485 018

Accepted insurance plans are subject to change without notice. Please contact your insurance provider and the doctor's office to verify your coverage.

Patient Reviews

September 04, 2021
Dr. Kim listened to the reason why I was there, advised me on what to do next moving forward.
August 28, 2021
The provider I saw the Dr. Kim. He was very, very, very friendly and very young. He was just listening to me and everything I had to say and he really took his time explaining what was happening with my pain. I really I really liked the care he provided. Thank you.
August 28, 2021
The staff was great however the gentleman that took my child's vitals had some facial expressions and body language that questioned everything I was stating as answers to his questions. I felt extremely disrespected as a mother who knows my child and knows the situation that brought us into the office.
August 07, 2021
I tried to say that we saw Dr. Kim he was extremely patient very Farrell and I was just very grateful that we as he found my son and she get this onto explained everything to us and my son and we were just very very happy with the service. Thank you.
July 31, 2021
It was one of the best experiences I've had. Everyone from front desk, nurse, xray tech and provider. Thank you all!
July 30, 2021
The Doctor genuinely cared for my health
July 29, 2021
Hello, I just wanted to say that Dr. Kim went above and beyond. I didn't expect to be seen by a doctor. Didn't expect for him to be very thorough detailed with his assessment. But my gosh, he met all of my needs and was great was friendly. Even the front desk as well ,all the staff members were really kind. Much appreciated. You know, they showed care and concern and we're so knowledgeable, so thank you.
July 29, 2021
Great experience overall
July 24, 2021
They treated me excellently with very good doctors, thank you.
July 10, 2021
That this doctor Kim is excellent, super attentive, I really liked!
June 26, 2021
Dr. Kim was extremely thorough and took the time to discuss my condition with me. He showed concern and empathy, as if I had been his patient for years. He is a wonderful addition to the urgent care staff and should be commended for his great care!
June 26, 2021
Thanks to Dr. Issac Kim, he took great care of me
June 19, 2021
I really appreciated all the help in finding a medication that I could afford as the original medication prescribed was not covered by my insurance and the staff went above and beyond in locating a different medication at a cost I could afford and even located a pharmacy where I could get it. I do not know of anyone who would do that and go the extra mile. Congratulations to the staff.
June 10, 2021
my doctor's appointment visit was great. Dr. Kim spent so much time with me. He listened he offered advice medically scientifically with the medication, and not, he was excellent. The girls in the room on the second floor, receiving, are excellent. Thank you very much. I appreciate all your efforts and your goal to make us gaken care of and happy and on your way to be healthy. Thank you team.
June 04, 2021
You can improve having a service in Spanish, specifically doctors from a consultation in Spanish, thank you.
June 03, 2021
The front/back office staff are attentive and polite. Dr. Kim spent a considerable amount of time explaining the diagnosis, treatment, and what to follow up with my primary care doctor for. Thank you, it was most appreciated as I was feeling really bad when I arrived to the UC.
June 03, 2021
I went in scare and in allot of pain, but the doctor and the male nurse who assisted me went above and beyond and answered all my questions and the process was painful yet fast thank you guys for everything, excellent service and customer care
May 22, 2021
Keep Up the Good Work
April 24, 2021
Everything went extremely well at PIH DOWNEY URGENT CARE. Dr. Kim and his staff and x ray technician went above and beyond to make sure I was taken care of when I visited the urgent care facility
April 24, 2021
He is the first doctor who made me so happy because he took so much time, and explained very well all the problems, where they came from, and where it was going, the care one has to have, and I really liked everything.
March 31, 2021
Dr. Kim is awesome but waiting over 30 minutes in a hot room for him was not the best experience we've had at PIH.
March 30, 2021
I truly appreciate Dr Kim's care. He is compassionate and knowledgeable. I highly recommend this doctor to everyone.
March 23, 2021
Dr Kim was by far the best experience I had with any primary care Dr. Ive ever had. He was thorough and honest but most importantly CARING.
February 24, 2021
Dr. Was patient and explained everything so I could understand and he was very through and plasent. I would recommend this facility to friends and family.
February 17, 2021
I really liked how they treated me, an excellent job from the ladies in the office, and the doctor also excellent work, and I am very happy because he treated me very well, thank you very much.
February 17, 2021
Attentive, caring, and excellent physician. Thank you Dr. Kim!!!
February 09, 2021
oustanding and responsable profesional actitude
January 02, 2021
Dr. Kim was friendly. He really listened and was very informative.
December 30, 2020
Good morning explanation about vaccines.
December 19, 2020
Love love love !!
December 12, 2020
The service was great!
December 04, 2020
Dr Kim is a caring and compassionate physician. He spends a lot of time with his patients and provides a lot of good advice.
December 04, 2020
Excellent doctor. Very thorough.
November 24, 2020
Great doctor. Very attentive, very helpful, listens well.
November 07, 2020
Stay with your normal doctors and maybe Urgent care needs better access to the patients recorders.
November 07, 2020
Dr. Kim was pleasant, knowledgeable, compassionate and explained my condition to me.
October 24, 2020
Awesome experience
October 10, 2020
I would highly recommend my provider
October 10, 2020
Very personable and knowledgeable.
October 03, 2020
October 03, 2020
Courteous, respectful and knowledgeable.
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