Bill Kim MD | Gastroenterologist | Downey, CA | PIH Health
Bill Hoon Kim

Bill Hoon Kim MD


Gastroenterology and Internal Medicine
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4.8 / 5 (based on 283 Reviews) View 93 Comments
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Office Information

Hospital/Group Affiliation

PIH Health Downey Hospital

PIH Health Whittier Hospital

PIH Health Physicians





  • Gastroenterology
  • Internal Medicine


Medical School

University of Iowa College of Medicine (Iowa City)


Harbor-UCLA Medical Center (California)


Harbor-UCLA Medical Center (California)


UCLA Medical Center (California)

Board Certifications

  • Gastroenterology
  • Internal Medicine

Patient Reviews

September 19, 2022
Very attentive to my questions and respectful
September 16, 2022
Keep up the good work and good service, thank you
September 15, 2022
I am very satisfied because of what they advised me, the questions that they asked me, and I hope that tomorrow I will be done. But I am very satisfied with all the questions that they asked me. Thank God.
September 13, 2022
Dr. Kim was very professional, informative and knowledgeable to my situation. I would definitely recommend his to anyone.
September 13, 2022
Dr. Kim has been my doctor for more than twenty years. He knows my issues, past and present. He and I share a love of bike riding, and he knows I need to feel well to ride. He's a wonderful medical doctor! Also, the office staff was kind and polite, too.
September 13, 2022
Dr. Kim has a lot of experience and it shows. He was caring and professional. I appreciated the guidance he offered regarding a solution for my ongoing issue.
September 13, 2022
Everyone made me feel very welcome, I know for sure new friendships were made. Best to the PIH team, (PHI removed).
September 09, 2022
Excellent communication.....
September 07, 2022
Dr. Kim's schedule is very limited therefore getting an appt. is difficult. Questions and concerns are not handled as quickly when he is gone and patient has to do more follow up to get a response.
September 07, 2022
He was wonderful. Couldn't ask for anything better.
June 29, 2022
Dr Kim was very easy to talk to. He made me feel very comfortable.
June 27, 2022
The service provided by the Dr and nursing and administrative staff at the hospital in Downey was excellent. I'm glad in the care of such a great team at PIH Downey.
June 27, 2022
Dr Kim is great!
June 22, 2022
This was my first-time seeing Dr Kim and due to the reason for my visit I was a bit apprehensive, however Dr Kim put all my anxiety to rest. He assured me he would follow-up with my oncologist, (name removed), and for me not to worry. I know Dr Kim is very busy and I appreciated being able to see him on such short notice. The staff was professional and helpful. After hearing the reason for wanting to set an appointment, and knowing it would take several months, they were able to see that I saw Dr Kim as soon as possible. Thank you all for your help.
June 21, 2022
This doctor was very understanding of what was going on with my stomach, and see the troubles, when I take antibiotics, and he was very brilliant in the solution, he created. I really thank him for the wonderful job he did goodbye.
June 16, 2022
Everyone was friendly, professional and courteous! I was attended too right away did not hv to wait!
June 15, 2022
Dr. Kim, easy to talk to, felt at ease. Ask lots of questions.
June 15, 2022
The doctor who treated me was very attentive to me and I felt very confident during my consultation.
June 14, 2022
a very nice and honest doctor
June 14, 2022
It was very refreshing to come across a doctor that was not only very intelligent and knowledgeable, but very personable. He is the type of doctor that gives you great confidence in his care. I would definitely give 5 Stars.
June 10, 2022
Hi, my name is (PHI removed). I'm very pleased with the P.I.H. staff and everything there. That was a very professional, and very and I especially liked my thank you card when I exited out.
June 08, 2022
Everyone was very nice polite, courteous, friendly, I would recommend highly. I, I think it was a very good experience for me. Thank you.
June 07, 2022
I loved Dr. Kim! He was easy to speak with.. extremely straight forward and very helpful! Dr. Kim was pro-active and I really appreciated that! (PHI removed)
June 07, 2022
I've been very fortunate to have Dr. Kim as my doctor. I was very satisfied with the attention that he's been given to me in the past years and now. And I would just like to say, keep doing your best job ever. Thank you. Bye.
June 07, 2022
Had to wait 3 months for appt. Was in exam room for 45 mins waiting for dr
June 02, 2022
Dr. Bill Kim was very empathetic and listened to any questions I have, and answered any questions I may have, and she is a very good listener, and I appreciate that. Thank you.
June 02, 2022
I made a mistake on the first question and said one, but it should be a four, too. Very good doctor. Very good office. Of course I would recommend the doctor. I am very pleased. Thank you so much. Very, very good service. Very grateful for all the care.
May 31, 2022
Very nice and personable.
May 26, 2022
I wish there were more doctors who speak our language, because we don't understand English. Thank you.
May 24, 2022
Yes, I felt the doctor Bill Kim was very... how can I put it? reliable in his diagnose and he seems very educated and I feel very comfortable having him as my doctor. So, all the issues I was having. I was kind of scared but now he put me at ease and I'm very grateful that he... quickly had me taken, have test done and everything so that it's not lingering, and you know, that question in your head, as far as I, am I going to get taken care of or not. I didn't get any of that. It was, it was a great experience and I'm very appreciated for seen Dr. Kim.
May 24, 2022
Dr. Kim is amazing and patient in explaining everything.
May 24, 2022
Thank you for making sure our voices count.
May 24, 2022
Grateful for all the in-depth care from PIH docs!
May 19, 2022
A very kind and caring physician. His clarity in explanation is appreciated.
May 17, 2022
Dr. Kim is very professional, empathetic, and thorough.
May 17, 2022
Dr Kim is always friendly, patient and very courteous Love the experience
March 31, 2022
My experience with Dr. Bill Kim was exceptional on all fronts. Extremely professional. Thorough. Knowledgeable. Attentive to my needs asking all the questions. I couldn't think of a better experience or could not make any additional recommendations. It was perfect.
March 30, 2022
Dr Kim is an excellent doctor. He is easy to talk to and explains everything clearly.
March 29, 2022
PIH Overall I am not pleased with. Dr Kim was great but to schedule an appointment with a specialist is a nightmare months wait. I will be leaving PIH after my next set of appointments.
March 28, 2022
I just got to say the hospital was remarkable the prep room, and also the recovery room, the nurses were all great, and it was a very good experience felt really safe. Thank you.
March 28, 2022
One of the best experience I have had with a physician and staff. Great care, great staff. Dr. Kim and staff made me feel safe and at ease. Highly recommend this doctor.
March 25, 2022
This visit was at the outpatient facility. I did not go into his office or have any interaction with his office staff. You need to offer better response choices to your questions if you want accurate data.
March 25, 2022
I am very grateful to the office and the service they gave me at the hospital, I am very grateful to all the staff and I am very grateful to the presiding doctor for his attention and in short, to all the staff I am very grateful, thank you.
March 24, 2022
Doctor listen to my problem, very carefully.
March 23, 2022
Dr. Kim was an excellent doctor. I enjoyed my visit with him explained everything, extremely. Well, however, to get an appointment to see Dr. Kim is extremely difficult. It took me about 2 months and I could, I could call me back to see if anyone had canceled to get a quick appointment and I was not able to so with that. That's one of the reasons why I would not recommend him. It's just too hard to get an appointment with him.
March 22, 2022
Excellent doctor. Too bad he is not a surgeon, because the Surgeon Doctors that the PIH has in Downey (names removed) do not deserve to be in a prestigious Hospital like the PIH, hopefully they can have a Gastroenterologist Surgeon (GI). If you wish to have more information about the experience with Doctors (names removed), you can call me at (PHI removed). They never sent me a survey about my experience with them.
March 21, 2022
Great attitude and bedside manners, keeps you in a upbeat mood.
March 17, 2022
I think Dr. Kim is the best. Thank you
March 17, 2022
Excellent attention and service, Alone the time for dating is very long
March 16, 2022
I felt more at ease once the doctor explained everything to me.
March 14, 2022
March 09, 2022
I really like how the doctor treats you. I would recommend him to other people.
March 09, 2022
Clean, beautiful office. Efficient, friendly staff. Dr. Kim is a kind, friendly, and a very professional doctor.
February 23, 2022
Thank you
February 22, 2022
Excellent treatment from the doctor
February 03, 2022
Dr. Kim is a wonderful doctor. He listens and makes decisions that are best for you.
January 13, 2022
Dr Kim is a great Doctor
January 13, 2022
January 12, 2022
Bill Kim was polite and helpful, and it was a positive experience.
January 12, 2022
Great person, easy to understand. Took a interest in my health.
January 12, 2022
Instant rapport with Dr. Kim: knowledgeable, generous with his time, caring and understanding. I have every confidence in his skill and ability to oversee and take charge of any and all issues relating to my gastro-intestinal health.
January 12, 2022
Service and careful attention.
January 11, 2022
I am very thankful for the way they treated me. They treated me basically like I'm royalty. I can't say enough about Dr. Kim and his staff. They were outstanding. They were very professional, they treated me with courtesy and respect. I can't say enough about them. They were outstanding. Thank you.
January 04, 2022
The visit with Dr. Kim was fine, but the office staff was very difficult to get in touch with many times. I had to leave messages and Dr. Kim's. Office did not call me back in a timely matter. There are too many doctors in that office and two little help with Dr. Kim. Thank you.
December 22, 2021
My interview was by phone, it was never personal by video call and with me he sent me a prescription, where after I do not know when I have to see it, I do not know anything, I do not know that I have to take that prescription that he sent me with water, but I do not know when or what time it is or how and why they do not send a paper specifying that what I have to do step by step, that is what is not correct. Thank you.
December 17, 2021
Very professional and courteous staff. Dr Kim and his crew always pleasant.
December 15, 2021
Seeing Dr. Kim took almost 6 months, but after seeing him it was well worth the wait. Love PIH Doctors.
December 14, 2021
Yes, I need to leave a message that the last question was a yes or no question. And I actually pressed 1 to... to... I wanted to leave at 10. Because I thought it was a one through 10, just like the previous question, but it wasn't. It was a yes or no question. And I pushed 1 in the attempt to put 1-0, but it ended up being no. So I'd like to change that last answer to a yes. I would like to recommend Dr. Kim to my family and friends. He really was wonderful. And I came away thinking that he was just the best. So, please change that last answer to a number 2. Yes, I would recommend him to my family and friends. Thank you very much.
December 14, 2021
I felt very comfortable with Dr. Kim. And I would definitely go back. Thank you.
December 14, 2021
Superb physician. Having worked with physicians for 35 years you pretty much know the ones who are qualified and the rest should have opted for another profession. Dr. Kim is one of the top on my qualified short list.
December 10, 2021
The survey that you're asking everyone to do should be a lot shorter. More specific questions. You go in to way too much depth, and your (INAUDIBLE) what you want the person to say. I think you ought to be a little bit more professional. You don't need these surveys all the time. You can be very simple, and short. So, I would talk to the people that are helping you with this with these, and try to (INAUDIBLE) something
December 08, 2021
Dr.Kim is a very knowledgeable and caring person. I would highly recommend him to anyone who will listen.
December 08, 2021
Dr. Kim spent an appropriate amount of time with me. He listened attentively to my concerns with a friendly and caring attitude. His review and examination was thorough; I trust his diagnosis and recommended treatment. This was my first encounter with Dr. Kim, and I am happy that he was able to see me as a patient. My rating is "all star." Dr. Kim's staff seemed very competent. They all appear to be very busy, yet still able to communicate with patients in a respectful yet friendly manner. They are patient with the patients. I appreciate that the whole experience was very pleasant. Thank you, Dr. Kim and staff. -im
December 06, 2021
Yes, Dr. Kim and his staff were very, very good. I also wanted to mention the last question I, I put one... push one my, by mistake I meant to push four. Thank you.
October 29, 2021
From the moment I checked in for my appointment, I was treated with courteous, professional & quick service. I wish I would have remembered all the names because everyone truly deserves a pat on the back for their genuine,friendly service. But a shout out to the names I do remember: Dr. Kim, Dr. Loo, [names removed], the lady wearing the Unicorn tail & headband, the DOG mom who shared her furbaby pics with me and to ALL of the staff. Thank YOU!!!
October 29, 2021
Dr. Kim, Dr. Nyugen and the entire staff were outstanding. Thank you!
October 29, 2021
Dr Kim is very kind gentle understanding Dr her really makes sure your taken care of with best of care he a great Dr the hospital was great very kind nice caring wouldn't change
October 27, 2021
No one likes to go to the doctor, but if you need to go, this is how it smoothly and effectively such a visit should go. One small complaint that id]s NOT directed at this office: I used the payment option that was offered at the end of my from home pre-check in. Well not specifically stating what I was paying, it was strongly implied that the payment was for the copay for my upcoming visit the next day. It turns out that was not the case. Somehow, I never made a co-pay payment for a May 2021 visit to my allergist. When I saw my allergist earlier in October, I paid that October co-pay, along with the skipped May co-pay. When I arrived for my visit with Dr. Kim, the receptionist asked for me to pay my co-pay. I told them I paid it the night before when I checked in. After a bit of searching, the receptionist informed me that the system applied that co-pay to the skipped May 2021 co-pay that I had paid when I visited my allergist the week before. I paid the current co-pay to Dr. Kim, and the receptionist told me they would have associated the double payment to my allergist from the prior week, but they did not have that capability. I suspect I now have an open item for that $35 May 2021 co-pay, while simultaneously having a $70 payment against my October 2021 allergist co-pay. Who knows if the billing department will ever put these two together and cancel them out, but this kind of thing should not happen in today's online billing systems.
October 26, 2021
It has been very well.
October 26, 2021
Yes, this was the first time I went to see the doctor and he made me feel very relaxed. And he explained everything to me, what the procedure was going to be like, and what's going to happen, but I felt very comfortable.
October 25, 2021
Experience with hospital, staff and Dr Kim went very well.
October 25, 2021
Only Anesthesia did not introduce himself immediately but once I asked for the anesthesia he presented himself quickly. Overall, I was treated with respect and my experience was as pleasant as a colonoscopy could be.
October 25, 2021
All of the care givers were great! However my procedure occurred 2 hours later than scheduled. Instead of 1 PM I didn't have the procedure until 3 PM.
October 25, 2021
Everyone was nice, the staff, nurses and the doctors. It was a very pleasant experience for me. Thank you.
October 22, 2021
Excellent service. We were very very pleased and happy with everything. Thank you.
October 22, 2021
Great care was given to me
October 21, 2021
Keep up the good work thanks
October 20, 2021
Most professional Dr Kim, great human being.
October 07, 2021
Dr. Kim is the greatest! I really feel like I am in very good hands with my medical care and my well being!
October 07, 2021
Well, my appointment was for 7:30, but I was told to come in at 7:15. So I got there at 7:00 and there was nobody there. So I went back to the car and called the answering service. He said, well, they're not there by 7:50 give us a call, and lady came right at 7:15 and didn't seem to know to much about
October 06, 2021
His knowledge and kindness is transmitted to my care and sense of security.
October 06, 2021
Great physician!
October 04, 2021
A big thank you to the nurses staff and to [name removed] RN that took care of me .
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