Alexander Hyunsung Kim

Alexander Hyunsung Kim DO

Specialties:

Gastroenterology and Internal Medicine
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4.7 / 5 (based on 485 Reviews) View 121 Comments
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Alexander Kim DO is fellowship trained in both gastroenterology and interventional endoscopy—a specialty that includes minimally invasive procedures to diagnose and treat GI conditions.

Dr. Kim’s passion for helping others and making a positive impact in their lives led him to pursue a career in medicine. “I feel a strong sense of responsibility for contributing to society and serving the community through medical care,” he explains. “Medicine satisfies my intellectual curiosity, and I enjoy continually learning and growing.”

Joining patients on their recovery journeys brings Dr. Kim immense personal fulfillment. As a gastroenterologist, he’s at the forefront of innovation, offering cutting-edge, minimally invasive procedures that were once daunting major surgeries. Dr. Kim strives to provide personalized and compassionate care at every step.

His patients benefit from the latest innovative techniques that ensure optimal outcomes and faster recoveries. He prioritizes building strong doctor-patient relationships and taking the time to fully understand each individual's needs and concerns.

Through a combination of specialized training, dedication to continuous learning, patient-centered care, experience, and passion for advancement, Dr. Kim has earned distinction in his specialty. During residency, he became chief resident, an experience that honed his leadership and mentoring skills.

He previously served as director of a thriving and collaborative endoscopy practice, where he worked successfully to elevate standards of patient care across the organization through improvement initiatives and policy development.

Dr. Kim is passionate about athletics and participates in long-distance running and basketball pick-up games. He and his family also enjoy experiencing diverse cultures through traveling and sampling world cuisines.
He looks forward to collaborating with colleagues at PIH Health to make a lasting difference in the lives of patients and the broader community.

Office Information

Hospital/Group Affiliation

PIH Health Good Samaritan Hospital

PIH Health Physicians

Profile

Gender

Male

Specialties

  • Gastroenterology
  • Internal Medicine

Additional Languages

  • Korean

Education

Medical School

Rowan University School of Osteopathic Medicine

Internship

Saint Joseph's Hospital

Residency

Geisinger Medical Center

Fellowship

Geisinger Medical Center

University of Maryland

Board Certifications

  • Gastroenterology
  • Internal Medicine

Patient Reviews

September 28, 2026
Had a lot of fun.
September 28, 2026
I really appreciated how everyone treated me. Despite my nerves, they made me feel safe. Thank you so much.
September 28, 2026
Everybody is very nice, the nurses my anesthesiologist the guy who took my ekg every one is very accomodating, they make me feel like at home, the Korean nurse who wheeled me down was so nice that i almost hugged her before i boarded my wifes car...this hospital is the best...you feel respected.
September 22, 2026
I really appreciate for the support I have received from the PIH team. They are very helpful, knowledgeable and due care to their professional responsibilities to the patient to ensure highest level of satisfaction. I thank you all and hope that they will continue their efforts.
September 17, 2026
Everything was great. Everything was great. I give it a 10.
September 10, 2026
Dr. Kim Alexander is a great doctor. Thank you. Bye now.
September 08, 2026
I didn't see the doctor at my initial visit. I saw his NP, which I am ok with. I have an external hernia (the reason for my visit) and she told me it would be removed during my colonoscopy. When I met with the doctor, he told me it wouldn't be removed. There needs to be consistency in message of care.
September 04, 2026
I am very satisfied with the care I received from a very professional team, especially Nurse (name removed). Her empathy with the patient is very professional and kind. The care she provides is exceptional, and (name removed) wonderful quality is that she makes the patient feel safe. Thank you so much to the entire medical team, especially Nurse (name removed).
September 02, 2026
Every staff member was very kind and answered all questions I had.
August 24, 2026
I'm not complaining, I received excellent service, thank you very much. Great team. Thanks, bye.
August 21, 2026
The staff were very friendly and it was clear they had an excellent relationship and respect among the staff. I left very happy and at peace after a medical procedure.
August 12, 2026
Everything that takes is very excellent. Thank you.
August 10, 2026
Everybody was very nice and professional help me and every way they could the window extra mile for me
August 06, 2026
It was kind of a waste of my time because I was scheduled to get a Bravo test done and you guys don't even have the test there for a whole year. And so I kind of wasted my time going down there and figuring out that you guys weren't going to be able to see me. So thank you for that.
August 06, 2026
I hope that waiting time for the staff to provide the schedule will not take too long after the doctor had done the consultation.
August 06, 2026
It was a very good office visit.
August 05, 2026
Everyone was polite and respectful except for the Anesthesiologist. He needs to improve in his bedside manner.
July 23, 2026
You made me come into an office just to sit there for 10 minutes so the doctor could ask me why I was there, which was for a colonoscopy. And that was it. I scheduled my colonoscopy and left. Had to wait nearly 3 months for that appointment, only to pay an $80 copay just to schedule an appointment for the actual colonoscopy, which is now 3 months away. Nothing during this appointment couldn't have been done over the phone. But I guess then you wouldn't get to bill my insurance, so it makes sense in this ridiculous health care system. Anyway, thanks for making me wait 6 months to get a colonoscopy.
July 21, 2026
Excellent experience!
July 21, 2026
Excellent service, definitely very professional, they made me feel very comfortable and confident... thank you so much, may God always bless you!
July 17, 2026
My name is (PHI rermoved). My doctor is excellent; I wouldn't change him for anything. The staff is outstanding. I wouldn't trade them for anything. I highly recommend them to my family. Thank you.
July 17, 2026
They treated me very well, they were very kind to me. I felt very comfortable there. Thank you very much.
July 16, 2026
Hi, everything went well. The doctor was great. The only thing is there was a big delay for having the tests available that I took beforehand, so they had to actually get them printed up and sent over from the providers. And that happened with the blood test as well as the other test. So that was a kind of a sticking point. But I did have a lot of help. I had two ladies. One looked like HR or manager, office manager, one of the two. And the other one was like, I believe another doctor that sat by. So, but by the time my doctor came in, it was a while before that happened. So there was a delay, like I said, but it's no big deal. I was, I'm retired, there's no rush. So things happen, I understand. But that was the only sticking point. Other than that, everything was great.
July 13, 2026
The service and procedure were mostly fine. The only issue is the wait time for the exam. It's far too long. Three or four months to wait for that exam is excessive. If the wait times could be reduced for other people, that would be better. Thank you.
July 09, 2026
I didn't appreciate not being seen and not getting a call before my appointment drove out there for nothing didn't see the doctor had to pay $15 for parking had to waste my gas driving out there I am really disappointed in this appointment
July 08, 2026
I am very grateful for the kindness shown by both the doctor and the nurses. I thank God that they are good people, and I trust that they will continue to be kind, caring, and provide excellent care to their patients. In my opinion, I felt very comfortable. Yes, at ease, because they treated me so well. Thank you, and have a wonderful afternoon. God bless you.
July 07, 2026
My experience at the appointment on the fourth or fifth floor I apologize for not remembering was pleasant. From the moment I entered, the staff at the front desk were friendly. Inside the consultation room, everything went smoothly, and they explained the procedure very well. On the day of the procedure, even at reception, I only speak Spanish, and the receptionist did her best to understand me. She tried her best to speak Spanish, and this continued throughout the entire process with the nurses, assistants, and everyone else who was with me. I am very grateful that they made an effort not only to do their jobs but also to be empathetic with people like me who only speak Spanish. They did their best.
July 01, 2026
I would just like to say that I genuinely have nothing but great things to say about Dr. Kim, all of his staff, and all of his nurses too, back when I had the procedure. Everyone has been incredibly friendly, super efficient, and he's the first doctor I think I've had in a long time who actually listens and hears what you have to say before just barging in and prescribing stuff or doing whatever he thinks should be done. He genuinely listens to what's happening with you. And yeah, I just think he's a great doctor and would recommend.
June 29, 2026
Everyone before the surgery was amazingly kind to me. They were respectful and also I felt safe because most of the nurses, funny enough, had the same surgery made by the same doctor. So I knew that the nurses trust the doctor they work for, which gave me a lot of confidence going in. I would recommend it to all my friends and family. And when I have to come back, I will go to him for sure. Thank you.
June 24, 2026
The receptionist was very friendly, courteous, and helpful. The nurse was very professional and courteous. Dr. Kim was caring and professional. He listened carefully of all my concerns and offered options for diagnosing the current problem. I had a slight problem with the person giving me the order that Dr. Kim had entered into the computer. She verbally gave us instructions that didn't match with what Dr. Kim had suggested. I was confused for a short time until Dr. Kim had straightened out that miscommunication.
June 22, 2026
All the staff were very kind to me and I felt very comfortable and my nerves were less because of the procedure I had.
June 22, 2026
Provided good treatment environment and personnel are very courteus and accommodating.
June 19, 2026
Honestly, the nurses were wonderful; their care was truly pleasant.
June 18, 2026
Since I walked in, (name removed) seen me with my sister in a stretcher. (Name removed), and she bring me in right away. And then I had, I think her name is (name removed). It starts with the (initial removed) but I think (name removed) was super nice to my sister. I mean, the staff was beautiful. The place was clean. The doctor treated my sister like a human being. Everybody was beautiful there. I left out of there very impressed, which now the other doctor looks nasty. So, oh my God. I was very impressed and it's still on my mind and my soul and my heart how good they were to me and my sister. I even told the doctor he has the best staff. Can't complain. You shouldn't complain. Okay.
June 12, 2026
This was my first colonoscopy and I felt very comfortable with Dr. Kim and all of the nurses. I trust them and will definitely recommend my friends to PIH and Dr. Kim for any gastro issues.
June 12, 2026
Everyone was so wonderful. I am a very satisfied patient. Thank you, thank you
June 09, 2026
Very positive experience.
June 09, 2026
I loved the service I received from my first appointment until my tests were done. A truly professional team. The nurses and doctors treated me with respect and kindness. I would recommend this hospital to everyone for tests or anything else they need done there. Because the staff at this hospital are... very attentive and very respectful. Thank you.
June 09, 2026
Dr. Kim and the whole staff in the hospital were incredible. This voice prompted rating system was actually the least clear of all of the experience. You started out with like numbers and stuff. So I actually think I hit a three when I should have hit a four on all of them. So if you're going back and rating this, I said four on all except for 10 on the referring to family and friends. Thank you.
June 08, 2026
Hi, I'm very happy with my new gastroenterologist, Dr. Kim, and I was very impressed with the hospital where I had my colonoscopy. Everybody's very nice and very professional.
June 05, 2026
Very positive experiences. Experience nurses were great. Doctor was great. Staff was excellent. I would only ask that the doctor prescribe the Merlax formula to prepare for colonoscopy other than the go lightly.
May 28, 2026
I had a great experience. I arrived early. I got what I needed right away and I got help. The scene was in less than like 15, 15 minutes of it. The doctor was amazing. He made me feel really comfortable. He had a great bedside manner. He's usually, I don't like my doctor to speak to the standoff, but he was great. He laughed at my jokes. Everything was 10, well above. Okay, thank you.
May 26, 2026
I was in very good hands; everyone is very professional and very kind from beginning to end.
May 21, 2026
Staff members were very welcoming. I was seen on time. Dr. Kim took his time to explained everything and was very warm and caring.
May 15, 2026
The staff was extremely professional, efficient, and worked incredibly well together. Everyone kept me informed throughout the entire process, answered all of my questions, and made me feel comfortable the whole time. The entire team did an outstanding job from start to finish. I truly have not a single complaint - very thorough, attentive, and caring group of professionals. Highly recommend.
May 14, 2026
Overall, it was a great experience. The professionalism was top notched. I was treated with respect and courtesy throughout my appointment. I am totally in love with Dr Kim, he is everything I want and need in a physician. He kindly addressed all my questions and gave me hope for future treatments. I have already referred him to my family! Thank you for providing this high level of care!
May 13, 2026
Yes, my service was very good and I am grateful because, well, I was treated very well and excellently.
May 07, 2026
The doctor and staff are very cordial and I was promptly seen at my schedule appointment time
May 07, 2026
(Name removed) at the front desk was awesome and Dr. Kim is great
May 04, 2026
The whole staff made me feel very safe and comfortable
April 29, 2026
Everybody from Mr. Kim to the receptionist, they were absolutely excellent. And I even told them as much. So there are no flaws. I don't see any problem. I didn't wait long. I came right in. I was seen. I was, everything was fine, which is rare for other places. But this, Dr. Kim and his staff are exceptional, seriously.
April 29, 2026
Excellent service and professionalism.
April 27, 2026
The doctors and nurses were all very kind. I am grateful for everything. Thank you.
April 23, 2026
The entire service is professional.
April 22, 2026
I really appreciate that, They don't make you wait to long I was very impressed about how fast they took me in to see the doctor.
April 21, 2026
The doctor, anesthesiologist, and nurses at PIH were all very professional, kind, and friendly. They explained the procedure thoroughly, especially whenever I had questions or concerns. I felt calm, safe, and well taken care of, and I truly trusted the entire team.
April 17, 2026
Everyone was accommodating and very friendly. They took care of me and saw they are like a well oiled machine team. Well done.
April 15, 2026
The service was very good and fast, but the appointments are very long for everything, and sometimes more serious illnesses can progress. Earlier intervention would be better for everyone.
April 14, 2026
Appreciated the process and all staff.
April 13, 2026
Everything was spectacular. Staff was very civilized and polite, everyone was absolutely respectful and caring. I am delighted with my experience. Thank you for providing civility to your patients. I am very grateful. Thank you. Hundred diamond stars!!!
April 08, 2026
I was very pleased with my visit. The nurse was really nice, patient, very clear. The doctor, amazing. He came in with a smile, introducing himself. He listened to what I had to say. He explained himself. So I really liked and I trust this doctor.
April 02, 2026
Yeah, I've seen Dr. Alexander Kim. He's a good doctor. I have no complaint. It's just the one, the scheduler have me waited for more than 35 to 40 minutes. And I thought that I should be leaving and they will call us back. And also, I thought it's going to take an hour. That's why I left. So they call us back. And right now, I called today the schedule. She told me I can call back when I'm ready. And until now, I haven't heard the scheduler that right now. So I don't know. I like Dr. Kim, but I think the personnel, the scheduler is not really good. If there is another GI doctor, I would find one under network. Thank you.
April 02, 2026
I really enjoyed going to this doctor's office. In fact, the whole staff was absolutely kind and they helped me thoroughly. I understood everything and everybody had a smile. I felt very welcome. Everything was explained to me thoroughly. I definitely enjoyed it. So yes, I would recommend this place to everyone. Thank you so much to the staff and the doctor for having me. Thank you. Bye.
April 01, 2026
Today's appointment was supposed to be a consultation, but I never actually met the doctor; Only his staff.
March 18, 2026
Dr. Alexander Kim is an excellent doctor. I always have a good experience with him and that's why I followed him from White Memorial to Wilshire. Excellent doctor.
March 18, 2026
I can't say enough good things about Dr. Kim and his staff including Dr. (name removed) and the Nurse (name removed). They treated me with such kindness and respect during my colonoscopy and upper endoscopy procedures. I would recommend them to any and all of the people I know. They truly are the best! I want to say thank you to all of them!
March 13, 2026
Staff was friendly which made the experience less stressful.
March 13, 2026
It's very hard to get an appointment with Dr. Kim, but the staff is very cordial, polite.
March 12, 2026
Yes, the consultation with the doctor was very thorough, and I received good care. It's my first time at this hospital. So far, I've been treated well. I have no complaints, and hopefully, that will continue to be the case.
March 11, 2026
All the staff and the doctor very friendly!
February 25, 2026
Dr. Kim is THE BEST doctor I have ever had. He sets the bar high above the rest. I have different providers at PIH and Cedars, BUT Dr. Kim will always remain my #1 doctor as I trust him above and beyond. I have only the highest praise for him. (And get gest my sassy sense of humor which is a major plus!) (PHI removed)
February 20, 2026
Everything was very clean. I received excellent care. The nurses, the assistants, and the doctor were all wonderful. Excellent service. I loved it. Thank you so much.
February 20, 2026
I like the way that he did manual manipulation on my neck. It was very, very painful. Not the manipulation, but my neck before he was working on it. And I did appreciate that. I wish more PT or OT or whoever does it would do more manual manipulation.
February 20, 2026
The staff at the colonoscopy center was very friendly and efficient. Great experience. Will definitely recommend it to my peers.
February 12, 2026
Dr Alexander Kim is a great doctor- he listened intently and l deliberated carefully in finding a solution to my problem.
February 11, 2026
Dr. Kim is very caring, really listens, and is very patient. I didn't feel rushed and felt I was in good hands.
February 10, 2026
The doctor was extremely patient with me. He explained the procedures that I was having. His customer service was absolutely stellar. I don't think that there's anything that he needs to change because he was excellent at what he does. Thank you.
February 06, 2026
The service was excellent. I loved the attention I received.
February 05, 2026
All staffs were kind help to me.
February 02, 2026
The receptionist who handled my financial checkup cheated me when it came time to collect my co-payment. I didn't want to argue, but her behavior wasn't right.
January 27, 2026
Yes, good evening. Regarding the survey I'm taking, I would recommend this professional to my family members who need them. And yes, I received excellent care. I left feeling satisfied and eager to continue my follow-up appointments with the same doctor. I appreciated the way they treated me and I'm very grateful for everything they did for me. Thank you.
January 23, 2026
Everyone was amazing! They even gave me warm air because it was cold. I'm extremely satisfied with the service
January 19, 2026
Everything's fine, thank you very much.
January 12, 2026
Dr. Kim was very professional. His staff has the utmost respect. Very clean office. The atmosphere was very welcoming. All the nurses and all the staff was very warm and welcoming to a patient. They're extremely professional, the whole office and the nurses that worked with Dr. Kim. I would be glad to recommend him to any family member or friend right off the top.
January 08, 2026
Hi, I just wanted to say I did not actually see Dr. Alexander Kim. I saw a nurse practitioner and she was very good and I'm happy with her care, but it would have been nice to have been notified that I would be being seen by her instead of the doctor I made an appointment with. So that was kind of annoying, but other than that, I had a good visit.
January 06, 2026
Good evening. I just wanted to express my gratitude for the care (name removed) received yesterday. Everyone was very professional and patient. Thank you very much.
January 02, 2026
Everything was great for me. Thanks to all the staff.
December 29, 2025
It was excellent.
December 29, 2025
I received excellent service. They scheduled my appointment early and called me early to ask if I could arrive a little earlier, which was great because I hadn't eaten all day. The service was excellent, the process was quick, and everything went smoothly. Thank you.
December 16, 2025
I am grateful and pleased with the care I received that day from both the doctors and nurses. They were excellent, thank you.
December 12, 2025
I need other type of medication because this medication is no good for me. My face is very inflammation from this medicine. Only need to change. Thank you.
December 12, 2025
I am very happy with the services they provided and I would highly recommend them to all my friends.
December 12, 2025
Thank you so much for all your attention to my health. Blessings.
December 09, 2025
Everyone on staff was very kind, friendly and helpful. A pleasure!
December 09, 2025
I thank God and everyone who treated me so kindly. Thank you so much, may God bless you, and especially Dr. Kim, an excellent doctor. I am very, very grateful. Thank you.
December 05, 2025
The care from everyone was excellent, the nurses, the doctors, it was magnificent. I'm very pleased with how they treated me and everything they explained to me. I knew exactly what to expect. They were all very kind. Although some didn't speak Spanish, there was translation on the screen. The service they provide is excellent.
December 04, 2025
the office staff is great
November 20, 2025
Honestly, I received excellent care, a 10 out of 10 for everyone, both the secretaries and the doctor. Their communication with people was excellent, and I was very well taken care of. Thank God and thank you to all the doctors.
November 17, 2025
No, I just wanted to say that I received excellent care. I was very pleased with the nurses and the doctors who came to see me, and I'm very grateful. A very, very good hospital. I really enjoyed it.
November 17, 2025
(Name removed), the nurse, was outstanding!
November 14, 2025
Dr. Kim was fantastic. His office staff was very responsive. They got me in right away and did an excellent job taking care of me.
November 14, 2025
Everything was great, excellent. Thank you. Everything was great. Thank you.
November 14, 2025
Thank you for your help.
November 13, 2025
I was very happy with the appointment because the doctor was very kind and nice, the person who attended to me was also excellent, everything was great.
November 11, 2025
Hello, thank you. I had a good experience. I appreciated the courtesy at the desk and the nurses who served me. And (name removed), I think it was, (two names removed) and the doctor. I appreciated the doctor coming to talk to me and Dr. (name removed), the anesthesiologist, and I had a very good experience. I was just a little disappointed because they couldn't tell me the results when I called back today, which is the day after I had to make an appointment for a later date. And that was my only thing I would like to know, you know, what it is before a month away. But anyway, thank you. I do appreciate this time. I did have a good experience with Dr. Kim and the staff. Thank you.
November 07, 2025
They are all professionals and very kind. I was treated with respect and dignity. I will definitely recommend this hospital who certainly has a great medical team. Thank you, Dr. Kim and the rest of your medical staff.
November 06, 2025
The office staff are very polite and professional. Dr Alexander Kim was very kind and explained everything. I felt comfortable asking questions and discussing my concerns.
November 06, 2025
It was a very pleasant experience.
November 06, 2025
Please have the nurses trained on taking blood pressure. It seems in every office I have visited in the last several months, they have had no flat surface to rest your arm on while taking BP ... they seem unaware that the arm should NOT be hanging or being held unsupported. I waited several months to se Dr. Alexander the office cancelled the first appointment. Waited several months to see Dr. (name removed) only to arrive to find he was the Dr. on call for the Hospital and he had to go there (more important). I did see another Dr. No physical exam was performed only consult, the Dr. Seemed bothered that he had to see me. He did not understand why I was disappointed that I had waited months to see Dr. Lee. Perhaps appointments should not be scheduled on the days when the Dr. Is on call!! Again I waited months.
November 03, 2025
Well, I was very pleased with the care I received at the hospital today. I appreciated the attention from everyone, the nurses, the doctor. Everything was excellent. Because of this, I can't recommend it to anyone, anywhere, to my family. Thank you.
October 30, 2025
It was a good experience at the office. The only main thing is that I may have not been clear when I was talking about my history, but when I went onto the portal to see, you know, my results or whatever, I could see that the doctor's notes didn't have the story exactly straight. And so I'm going to be looking into if there's a way to, oh, I don't know, write an email or write an addendum to kind of explain my prior history a little more clearly. So also, yeah, it was just notes that were a little bit off. I also had a little trouble with the prescription to CVS. They actually
October 30, 2025
Everything was fine.
October 29, 2025
(Blank)
October 28, 2025
Yes, this is (PHI removed). The staff at the Surgery Center of (name removed) was exceptional. The manager took me to my car, couldn't have been nicer. The entire experience far, far exceeded my expectations. I'd also had this done before at a different hospital, find something to compare to. Yes, I am so beyond happy with my experience at your hospital. Thank you so much.
October 28, 2025
Oh, hi. I think the last question I answered, I put in the wrong number. I meant to say that yes, I would recommend the office to someone I know. And also, I had a great experience. Everyone was really good. The only difficult thing was actually initially scheduling. There's a couple of snafus there, and it was hard to get someone to respond back to me. But once I did, everything was really smooth and ceiling. So, yeah, I would definitely come back. Great service. Everyone was great. The hospital was great. Nurses were so excellent. (Name removed) was great. The doctor was great. The anesthesiologist was amazing. Everyone, five stars. Just want to say that. Thank you. Bye.
October 24, 2025
Perfect 10 for Everyone.
October 23, 2025
I was very impressed with everyone I dealt with in Dr. Kim's Office.
October 23, 2025
The provider from start to finish was excellent. I really enjoyed him. Also the staff up front that greeted me and actually signed me in, excellent, excellent, excellent. I hope you're appreciating her. She's very, very good. And hang on to her, please. Make certain you tell her you like her, that she's doing a great job. Thank you.
October 22, 2025
Excellent service in every way. Thank you very much.
October 22, 2025
The preop nurses, the OR nurse, the anesthesiologist, the nurse assisting in the OR - everyone I interacted with was absolutely kind, compassionate and trustworthy. Thank you!
October 20, 2025
The whole staff was kind and considerate
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