Gerald Heeko Yoon

Gerald Heeko Yoon MD

Specialties:

Urology
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4.7 / 5 (based on 546 Reviews) View 126 Comments

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562.907.7600

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Gerald Yoon MD is a board certified Urologist with fellowship training in endoscopic/laparoscopic techniques for the management of all urologic conditions.  He is also trained and experienced in Robotic-assisted laparoscopy which is increasingly more commonly utilized in cancer and anatomical diseases related to the urinary system and male sexual organs.  Dr. Yoon accepts patients of all ages including children and evaluates patients in all the general areas of urology including urinary stones, urinary incontinence, genito-urinary cancers, prostate-related voiding symptoms, male sexual dysfunction and pediatric urology.   He also routinely performs the No-Scalpel Vasectomy in the office using local anesthesia. 

Dr. Yoon has received the designation of Center of Excellence in UroLift procedures.  This designation comes as a result of extensive UroLift procedures performed with favorable measured patient outcomes while also maintaining on-going continuing medical education activities. 

Dr. Yoon strives to maintain up-to-date training and education in order to keep up with the advances that continue to take place in the specialty of Urology.  He hopes to incorporate these advances in his clinical practice for the benefit of all his patients. 

Office Information

  • Urology Whittier

    14350 Whittier Blvd #100 Whittier, CA 90605

    Main: 562.907.7600
    Fax: 562.907.7602
  • Urology Downey

    11480 Brookshire Ave #204 Downey, CA 90241

    Main: 562.904.4470
    Fax: 562.904.4479

Hospital/Group Affiliation

PIH Health Downey Hospital

PIH Health Whittier Hospital

PIH Health Physicians

Profile

Gender

Male

Specialties

  • Urology

Additional Languages

  • Korean
  • Spanish

Education

Medical School

University of Virginia School of Medicine (Charlotesville)

Internship

University of Southern California Medical Center (Los Angeles)

Residency

University of Southern California Medical Center (Los Angeles)

Fellowship

Kaiser Foundation Hospital-Los Angeles (California)

Board Certifications

  • Urology

Video

Patient Reviews

January 27, 2026
Provider did not make me feel comfortable. I came in for an evaluation. I felt that he did not want to work with me. Although he provided me with information, it was generic information that I already knew from a previous provider. I also did not like that he did not spend time reviewing my chart before I came in, so he was surprised when I told him I was pregnant and he just did not seem very helpful.
January 26, 2026
Dr. Gerald Yoon is a very knowledgeable and skillful doctor. He performed my total nephrectomy 2 years ago. The surgery was successful, I left the hospital in 24 hours and I was back to my normal life again.
January 26, 2026
Everything is already here, which is an excellent service.
January 26, 2026
I look forward and love to see all my wonderful doctors and great staff. Thank you guys so so so much and all the best for the new year
January 20, 2026
Dr. Yoon is professional, yet is friendly and makes you feel comfortable.
January 20, 2026
The wait was short. The consultation itself took a reasonable amount of time.
January 19, 2026
Gracias,Dr.Yoon & Staff
January 15, 2026
I really appreciate all the doctors and nurses at the PAH hospital and at the clinic that I went to to take out my stent. I really thank you guys for doing everything that you can for me and I appreciate you guys. Thank you.
January 13, 2026
Dr. Yoon is a very polite and nice doctor. Very skilled in his field. And, listed to all my questions. He answered all my questions in a way that I could understand.
January 13, 2026
Dr. Yoon answered all my question and put me at ease about tge up coming procedures!
January 12, 2026
They promised me on the phone to contact Dr. (name removed) office to get my lab report I did on 01/06/2026 needed by Dr. Gerald Yoon, but apparently, they didn't do it.
December 23, 2025
My husband and myself see Dr. Yoon. He's great
December 23, 2025
Doctor's assistants happy and friendly as aways, front office cold, no smile, like they are force to work.
December 22, 2025
How you done? Dr. Yoon did a great job. It's been a year since he did an operation on me. The 31st would be when he took out the folly and the bag off me and told me to pee. And it was the greatest thing of my life. He is the best doctor and I recommend him to anybody. I know some doctors don't like it when you talk to them and appreciate them, but I appreciate him. I thank you for saving who I am and making me go on in life. And I recommend him to anybody. And I thank you for your services and I'm waiting for my next appointment. Thank you.
December 18, 2025
This provider should have taken more opportunity to help us out instead of sending us to the IR, which would be difficult to acquire. He has more connections and he knows the jargon what to use in order to help us to get a valve for my dad. And so I feel that he wasted our time in which we would have to wait and see about getting an appointment so we had to kind of push for help. And so luckily his staff had helped us in a way that he did not. So thankful for the staff that they were able to get things done, but the provider failed. Thank you.
December 11, 2025
Very good you're very nice
December 11, 2025
They are very attentive.
December 09, 2025
Dr. YOON listen to me carefully. I told you about my problems and he came up with the solutions. Dr. YOON helped me a lot.
December 08, 2025
He did a good job. I asked questions about my sickness and he answered me. And he's very worried and he sent me to immediately. So I really like it. I really is a good doctor.
December 01, 2025
Appt was at 2:15p. Didn't see the doctor until an hour+ later. We never discussed any new medications, but when I got home, I had a message from my pharmacy saying that I had two prescriptions ready to be picked up. One was for cephalexin, and the other was for lorazepam. I immediately called the doctors office to question whether or not these prescriptions were meant for me or were placed in error. I was told that I could not speak to the doctor and that somebody would get back to me later. I asked if they would call me and they said yes. I asked if they would call me the same day and they said no. I went onto the portal and sent Doctor Yoon a message, asking him about the prescriptions. The next day I had a message from an LVN, not the doctor, telling me that they were prescribed an error. I view this as a significant error and problem. If this had happened to another patient, perhaps an elderly person, I could see them getting the prescriptions and taking them because they thought they were supposed to. I think your processes need to be reviewed to see how this happened. PIH is definitely not the hospital and medical group it used to be.
November 25, 2025
Very professional and courteous.
November 24, 2025
The staff and Dr. Yoon were extremely professional and I would have given all fours except I didn't listen to the first part of the message. Everything was a definite yes for me. They were great about everything and I would definitely go back and see them and recommend anybody to them. Thank you.
November 20, 2025
my experience was good
November 13, 2025
The doctor is looking after everything; he's professional, and I'm comfortable with his service and professionalism.
November 10, 2025
I would have liked the doctor to explain the procedure he was going to perform to me more, because he said he was going to give me Botox injections in my bladder, but he said the nurse would call me to give me all the information. And honestly, I don't know much about that, I don't understand. It was recommended to me, but I don't know how it works, because I thought it would be done right there in the office. He said no, that I had to be hospitalized and all, but he didn't give me any details about what he was going to do, nor did he tell me how long the procedure would last or anything like that. He just said the nurse would contact me, and that's why I didn't like it much. That's my comment.
November 06, 2025
Horrible care
November 04, 2025
Doctor listened to what I had to say and provided information on my condition.
November 03, 2025
Good service
November 03, 2025
All staff was courteous and professional, especially the nurse attendant for the doctor. Upon completion of the exam, she asked if I would like her to schedule my next appointment with the doctor Yoon? She saved me the time I would have had to stand in line to schedule my next appointment. Dr. Yoon is always kind & concerned, and makes the exam tolerable. Due to his surgical skills, I am still cancer free. Amen!
October 30, 2025
Everything was good. The doctor is very, very intelligent and complete professional. That's it.
October 27, 2025
I just like him good doctor.
October 27, 2025
Dr. Yoon and his staff are very courteous and professional. Could not be any happier.
October 23, 2025
Dr. Yoon was incredibly attentive and made me feel truly heard throughout the visit.
October 23, 2025
Dr Yoon provided answers to all my questions!
October 23, 2025
Dr (name removed) is a truly professional doctor treating her patients with respect for them and their medical needs. Her office staff is respectful and considerate.
October 21, 2025
On this occasion, as on previous visits, the service has been exceptionally good.
October 20, 2025
I got a second opinion about my condition at a much more expensive hospital and they said that I was getting the same treatment that they would have provided.
October 20, 2025
Everyone in this office are very professional.
October 16, 2025
The Doctor I felt did not really ask questions he seemed disinterested and was not personable at all , he listened to what I had to say but seemed not interested he did answer me but didn't give enough information in helping me I believe . I'm sure the other doctors are good I just felt like he was not.
October 14, 2025
I was called in on time. Staff very friendly. Good visit.
October 13, 2025
Good service and friendliness.
October 06, 2025
I tried to make my appt with Dr Yoon on your website and it wouldn't give me one. It booked me with someone else - hot happy about that. I finally called and was able to book an appt with Dr Yoon. Why?
September 29, 2025
Doctor Gerald Yoon answered all of my questions . He was also highly recommended to me by a close friend and they were right! I was very impressed! It was evident that teamwork is ongoing! Everyone was polite, professional and on point! Thank you for the positive end results! Sincerely, (PHI removed)
September 29, 2025
All the staff are very courteous. Keep it up!!!
September 29, 2025
Very professional service
September 22, 2025
Glad to see you are taking time to listen to the patient. Being frank with recommendations and offering options is fantastic. The entire experience was pleasant.
September 19, 2025
The staff is consistently unfriendly. They ALWAYS act like they don't want to be there. I have even been cut off mid sentence while explaining why I was contacting them. That said, (name removed), the surgery scheduler is such a joy and radiates friendliness.
September 18, 2025
DO NOT KEEP ME WAITING IN THE ROOMS FOR SO LONG. ALMOST HALF AN HOUR AFTER MY APPOINTMENT.
September 18, 2025
Dr. Yoon is great. He listened and answered all of my questions. He was not in a rushed manner - took time to discuss at length regarding my situation. Very kind and knowledgeable. ({PHI removed)
September 11, 2025
Hello, my name is (PHI removed). I had a great experience with Dr. Yoon and his staff. Everybody was courteous to you, nice and helpful. Thank you very much. Appreciate it.
September 08, 2025
Excellent interpersonal skills, knowledgeable and pleasant.
September 04, 2025
Very timely check on process. The best that I have experienced.
September 04, 2025
Dr. Yoon is always courteous and friendly. Dr. is usually on time but this appointment was a little late I think it was due to Dr. Yoon training the a new Dr. His office staff is always very helpful they are friendly and courteous.
September 04, 2025
A lot of patience with my autistic son.
September 02, 2025
Well, Dr. (name removed) was the best I've ever had in the group of doctors, and I would recommend anyone to see Dr. (name removed), who is the best there is. I've seen several doctors, but no one has treated me like Dr. (name removed), and congratulations to him and keep going. Thank you.
September 02, 2025
Dr Yoon accommodated me when I needed to see him. I am thankful he was able to remove the stent that was causing strong muscle pain and spasms. Great person
August 26, 2025
weighting time was not long. everything was very good.
August 25, 2025
nothing. I am very happy with Dr. Yoon I continue to see him even though I have moved to another location and changed ALL my doctors to PIH in Orange county. (PHI removed)
August 21, 2025
I'm very happy with the doctor's care. He treated me very well. I definitely recommend everyone to visit him. They are professional and very attentive. The entire staff treated me very well. Thank you very much.
August 07, 2025
Once you're at the office the wait is very long.
August 07, 2025
This was an annual urology follow-up. It is required for me to keep taking the medications he prescribes for me. I think Dr. Yoon seems more caring than he has in the past, although it may be that I am more relaxed.
August 05, 2025
No problems with this office and this Doctor, everything went fine!!
August 04, 2025
As usual, Dr. Yoon was pleasant, efficient, attentive, knowledgeable, and listened to my concerns. And I appreciate it all very much.
August 04, 2025
Everything was very fast, efficient, and Dr. Yoon was amazing. We have only praises for him.
August 01, 2025
Dr. Yoon is the best. I trust his judgement to manage my health.
July 31, 2025
I like the Doctor he listened myself and gives me the best medication. I'm very pleased.
July 22, 2025
Very good office visitSMOOTH SAILING ??
July 21, 2025
The doctor and support staff were great, extremely nice, listened, and were very helpful.
July 14, 2025
thanks.
July 08, 2025
The "checking procedure" went well
July 07, 2025
Dr. G. Yoon is very friendly, very honest and I have been his patient for about 10 years or so.
July 03, 2025
He was very kind, courteous, and thoughtful, and repeated when I didn't understand. Thank you.
July 03, 2025
Keep up the good work.
July 01, 2025
excellent doctor, and listened to my concerns.
July 01, 2025
I trust Dr Yoon and I feel he treats me with respect and courtesy. His staff is also very kind and thoughtful.
July 01, 2025
Dr Yoon, was not patient or kind, walked out of the room. My father has PTSD, hard of hearing and dementia. He could've treated my father better.
June 30, 2025
Excellent visit today, as usual.
June 30, 2025
Dr Gerald Yoon is willing to listen to his patients and answer any and all questions submitted.
June 26, 2025
At the appointment, I wasn't seen by the doctor who knows my case, and I think he was in a hurry. So, John paid close attention to what I had to say. I still didn't leave satisfied, but that's okay.
June 09, 2025
Great service!
June 03, 2025
Was quick and very polite personnel
June 02, 2025
My experience with Dr.Yoon has been very positive. I feel very comfortable during my time with him and look forward to Dr. Yoon providing my continued care.
May 27, 2025
This office is efficient, fast, and wait time is not a long process. The personnel are friendly and the Dr. Is efficient.
May 22, 2025
Everything was great. Scheduling was easy to do.
May 13, 2025
Excellent professional services.
May 12, 2025
It was a good visit and the doctor explained to me everything very clearly and I was very satisfied
May 08, 2025
I recommend a friend to Dr Yoon, and he is meeting with him today! Thanks Dr. Yoon
May 08, 2025
Excellent service
May 05, 2025
The nurses and all the people who work there are of very high quality.
May 05, 2025
The doctor is very professional.
April 29, 2025
I appreciate Dr. Yoon's honesty.
April 29, 2025
Dr Gerald Yoon has diffidently been a blessing to me from my pre- surgery time through surgery and now to post surgery care.
April 28, 2025
Dr. Yoon provides the proper and best service when called on; and at the right time. He is a very caring doctor; and I am equally satisfied to be his patient. Thank You. (PHI removed)
April 28, 2025
Iam very satisfied and grateful to Dr Yoon for his time and care.
April 24, 2025
That all the staff are attentive and clear in any question that one asks them and the Doctor is very professional and pays a lot of attention to what one tells him and above all the attention and personal care, thank you for everything and they are very good health testers.
April 21, 2025
I had an excellent experience, good service, thank you.
April 17, 2025
Gerald Yoon was polite, professional, and most of all, very thorough.
April 17, 2025
There are no comments. I have been with Dr. Gerald Yoon for approximately 10 years and he has always treated me kindly and with respect. Of course I recommend him.
April 17, 2025
Friendly and efficient.
April 15, 2025
I think he doesn't nave enough experience to treat OAB . I have that condition and after he prescribe medication that din't work for me he told me he could't do nothing for me. so he discharge me.
April 10, 2025
I recommended Dr Yoon to my wife.
April 10, 2025
They were all helpful and kind.
April 08, 2025
satisfied to my medical needs
April 07, 2025
I mostly take care of my grandpa and grandma and so I'm always in Bakersfield so I'm willing to travel that far to see Dr. Yoon. My name is (name removed) and I am so happy with Dr. Yoon. Thank you.
April 03, 2025
Well, I am very satisfied with the doctor because he definitely explained everything to me and
April 03, 2025
Dr. Yoon, from the beginning, said my first consultation on April 25, 2022, and throughout the entire process until the recent consultation on the 3rd of this month, the care has been exceptional, always demonstrating his great professional ethics.
April 01, 2025
I thought that this doctor was very kind and very compassionate and I appreciated that very much. Thank you.
April 01, 2025
Dr. Yoon was perfectly willing to listen to my perspective as I am a complicated case. I appreciated his willingness to see my side. He did give some helpful tips which I am now implementing.
March 31, 2025
Satisfied experience.
March 31, 2025
Ok
March 11, 2025
Yes, a very, very good professional. He listens to you attentively and prescribes what he wants. No, I accidentally wrote "1" in the first answer, and it should be "2." Thank you.
March 11, 2025
Dr. Yoon treats me with respect and listens when I ask questions, he is knowledgeable and professional. I have full confidence in his abilities to treat me.
March 11, 2025
Dr Yoon is excellent provider
March 10, 2025
The doctor gave me time to speak and he seemed to listen to me.
March 04, 2025
Very friendly the doctor Yoon
February 27, 2025
Thank you PIH for Dr Gerald Yoon and staff who are wonderful and caring and thanks so much again
February 25, 2025
Everybody in there are very nice. I would recommend them if everything comes out okay with me. I do like everybody in there. Bye.
February 24, 2025
Dr. Yoon is always very ready and takes time to listen to any concerns I might have. I appreciate his advice and information he gives me during my appointment.
February 24, 2025
Very professional care and support staff were very competent and helpful.
February 24, 2025
Was in & out in a timely manner
February 24, 2025
Provider always shows sincere concern, and asks substantive questions; offers timely treatment!
February 20, 2025
Everything went smoothly this time.
February 18, 2025
Dr Gerald Yoon is awesome. His knowledge and care has been great. He listens and always makes the best call on treatment plan.
February 13, 2025
The provider did not provide any clarity as to why I'm getting Infections. I'm 44 and have no experience with what I'm going through and he said twice "I don't know." He provided no answers other than what I said I read on Reddit as to what can cause infections. I asked what to do if the infection persists and he said go to the ER and literally left the room...he examined me but provided no feedback other than "they feel fine, I don't know why your getting infections"...I have a scheduled appointment with another doctor. I'm no genius but I though doctors run multiple tests before coming to the conclusion that a patient has an anomaly infection.
February 11, 2025
Just seems cold and uninterested
February 10, 2025
I'm in good hands with all of my PIH Doctors
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