Gerald Yoon MD | Urologist | Whittier, CA | PIH Health
Gerald H. Yoon

Gerald H. Yoon MD


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4.7 / 5 (based on 470 Reviews) View 84 Comments

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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

Hospital/Group Affiliation

PIH Health Downey Hospital

PIH Health Whittier Hospital

PIH Health Physicians





  • Urology

Additional Languages

  • Korean
  • Spanish


Medical School

University of Virginia School of Medicine (Charlotesville)


University of Southern California Medical Center (Los Angeles)


University of Southern California Medical Center (Los Angeles)


Kaiser Foundation Hospital-Los Angeles (California)

Board Certifications

  • Urology


Patient Reviews

September 12, 2022
This was my first appointment with him. I'll have to see how my care is after future appointments.
September 06, 2022
Dr. Yoon has always been patient and does listen to my responses. He always explains things to me. Very considerate doctor.
September 01, 2022
Great overall experience ?
September 01, 2022
Excellent care!
August 30, 2022
Waiting room was to hot
August 25, 2022
Dr. Yoon was very respectful and he listened to my concerns. The staff was very good.
August 22, 2022
The nurse taking the patient background was super nice and enjoyable to talk to. I'm sorry I didn't get her name.
August 18, 2022
First time there and was completely confident by the staff and doctor that I would be taken care because I was important.
August 16, 2022
It took a little bit long to wait -- it was almost 30 minutes after my appointment time before I was called. I can see that they were busy this time. Hopefuly, they will improve next time.
July 27, 2022
You have online appointment with doctor portal but none to my knowledge from the staff has replied so far although I have been with your over 7 doctors by now. The doctors respond but the office/ appointment schedule is difficult if not impossible. I am tired of reporting the poor management of office staff which reflects on the good work of doctors. In short, I requested in writing on July 1 2022 for appointment but until July 21 2022 no one replied even after reminders. My fourth reminder over phone after a long wait was helpful. Tell me how I am still giving favorable response-because the docs are good, the staff is the issue. More if you call me at (PHI removed)
July 26, 2022
Dr. Yoon really care about my husband's sickness, Dr. Yoon move the request right after he examined my husband. Thank you Dr. Yoon.
July 07, 2022
I had to wait an hour and a half past my appointment time to see the doctor.
June 28, 2022
very nice , no problems, smooth
June 28, 2022
It is a pity that (name removed) will no longer be in this clinic, very good doctor.
June 27, 2022
Dr xplain more abaut my illness
June 27, 2022
The lady who attends at the front desk is not kind at all.
June 23, 2022
Dr. Yoon Went off of my daughters last ultrasound which was more then a year ago, he took a sample of her urine and said she had no infections but that is not why we were there! He did nothing and said very little. I was not happy with the services my daughter recieved. We waited over a month for this appointment not including the wait time to get a referral to see this "specialist" for nothing! He did not look into my daughters chart/ medical history. He knew nothing about her and did not take the time to get to know her. I left the office feeling like because he's used to dealing with adults he had no idea how to handle a pediatric patient. I definitely would not recommend this office and will be going else where to further my daughters care.
June 21, 2022
Was my first time there. So it's difficult to tell, how well everything will turn out. So I would probably need to redo this sometime later in the future. Bye.
June 20, 2022
I expressed some concerns to Dr. Yoon and he seemed uninterested in what I had to say. I told him what my PCP had told me and all he said was, "No, that's not what it says." His lack of empathy was very disappointing. He seemed more interested in getting on to the next patient. I will finish out the procedures he recommended but will not see him again after they are complete. I will definitely not recommend him to anyone, in fact I will tell people to avoid him.
June 16, 2022
Am always treated well and with respect.
June 08, 2022
Dr. Yoon explained my lab results and provided a new medication to help reduce my enlarged prostate and we will check in 3 months.
June 07, 2022
Respect from staff. To listen in a timely manner to respond.
June 02, 2022
Very professional!
May 31, 2022
I just wanted to say that the Dr was really nice and explained things really well to me. The staff was great, except for the lady in the front desk named (name removed). She could use some manners. I had written my name down and approached her to see what else she would need for me but she just ignored me and continued typing looking at her computer while im just there standing looking dumb. I finally asked her if she can help me or what else did she need for me like paperwork etc. She just said rudely" sign in, and well call you when were ready". Other than her, the other ladies that helped me were so sweet and kind.
May 31, 2022
I was very pleased with the treatment I received at PIH Radiology on June1.
May 26, 2022
The worst thing about the whole process is the telephone tree one has to go through to get to the office. Telecommunications are not one PIH's strong points, including this call here, which I just happen to answer. Please improve them.
May 24, 2022
My doctor was very considerate and listen to everything I had to say I really did like him
May 17, 2022
Awesome... Thank you Dr Yoon, and staff.
May 17, 2022
Everyone was very helpful and professional
May 16, 2022
Great service Dr.Yoon is a great doctor. Thank you.
May 10, 2022
The last number I pushed was a 2. It should have been a 4. Sorry, he was a good doctor.
May 02, 2022
Yes, I've had many, many urologists. My condition has been... I've d my condition for many, many years. And Dr. Yoon is an... is an exceptional doctor, urologist. He really listens. He's very aware of what the situation is. Very attentive. Just really makes you feel like he's... he's on your team to make whatever he has to do to make you feel better or whatever he can do to make... make your health improve. So I'm very fortunate to have found him. Thank you.
April 27, 2022
Dr. Yoon has been kind enough to listen to my concerns and hopes of my condition and has made suggests helping.
April 27, 2022
I had to wait nearly 30 minutes after my appointment time to finally be seen. I didn't feel the provider listened to my concerns and wasn't taking me seriously and/or did not respect me. Provider also appeared to be in a hurry to end my session.
April 27, 2022
I would like to make an appointment with another doctor again. This doctor has no education at all. You can see that he is very intelligent, but when he was with me he turned his back on me and instead of looking at me face to face, he just listened to me and worked on his computer. He didn't tell me what the origin of my disease is, or what treatment he was going to give.
April 26, 2022
He made me feel as if I was a drug addict & all I was there for was to get drugs. If he only felt the pain that I'm feeling, Maybe he would understand what it is like to have a kidney stone.
April 21, 2022
Very pleasant experience. I didn't have to wait long like you typically do at doctors appointments. The physician was detailed in explaining what was going on and the next steps to take. Very appreciated.
April 18, 2022
I was satisfied and liked the attention of the doctor and the staff.
April 18, 2022
I felt confident in meeting with Dr. Yoon for the first time. He was very pleasant, and I did not feel rushed during my visit. I did notice upon arrival and departure, that the waiting area was very full.
April 07, 2022
It was what I expected from all PIH providers. They are professional, courtesy, attentive and knowledgeable!
April 06, 2022
April 05, 2022
Sometimes when calling it does take a very long time to get someone, a live person on the phone.
April 05, 2022
My experience was mostly positive but I did have to wait 45 minutes past my appointment time to be seen by the provider.
April 05, 2022
Appreciate, the concern and care given! Dr. Yoon was very thorough.
April 05, 2022
Very professional
March 29, 2022
Dr. Yoon is a nice, friendly person, and he's easy to talk to. That's it.
March 24, 2022
March 22, 2022
I've been with Dr. Yoon for a long period of time and everything tells me, I follow his instructions. He's been good to me. Knows what has to be done. So I'm very happy with him. Thank you.
March 22, 2022
Dr. Yoon is a great urologist.
March 22, 2022
All the staff are very good and very friendly.
March 21, 2022
I appreciated the care and concern given me.
March 18, 2022
Nurse *(name removed) was great. My only complaint was changing my appointment time without letting me know. It made sense why they did it ince it was explained to me. But would have been nice to know
March 17, 2022
Very pleasant and professional.
March 15, 2022
Dr. Yoon was very pleasant to deal with. He explained things to me and seemed confident in himself. He treated me with respect which I appreciate. I liked him a lot.
March 14, 2022
Dr. Yoon is very courteous and always answers my questions. And he would be there if I needed to him other than the once a year.
March 14, 2022
Appointment was for 4. Waited until 510pm with no communication. The people working the front area went home leaving an older gentleman and myself sitting there. When I was called in the gal asked me if I was aware that the doctor I was supposed to see had to leave. I was not. Dr. Yoon was good once I got in.
March 14, 2022
I was in a lot of pain and they gave me no...pain killers. I was in severe pain, and...and they didn't care. They didn't do what they had to do, and I had an affection, and they're working on the infection without a pain killer.
March 14, 2022
All went well
March 09, 2022
I really trust him and look forward to going to my appointments because he listens very well to me. Thank you.
March 03, 2022
The front office needs to be more organized when scheduling appointments.
March 03, 2022
I have to wait about 40 minute after my appointment time to be called
March 01, 2022
He is an excellent doctor, I am fortunate to have him.
February 28, 2022
Pleasant & cordial...
February 24, 2022
February 23, 2022
Took too long to get in to see Dr. Yoon when it was a critical situation. Just Aguilar pain, take about 3 weeks to get in to see him.
February 15, 2022
It took a bit long when I actually saw the doctor -- more than 30 minutes after my appointment time. The doctor probably was busy. I think I am Ok with that.
February 14, 2022
My visit went perfectly, thank YOU!
February 14, 2022
Knowledgeable, friendly, communicative.
February 10, 2022
I was very upset. the requirements set forth by PIH, it which Which number one? I had to fill out the prescriptions. Number two. I had to State my prescriptions number 3. I had to tell them next meeting I would have to bring in the prescription. Number 4 it seem that Dr. Yoon was upset with me because he's later said there was no need for me to come back.
February 07, 2022
Dr. Amir was very knowledgeable. I am sorry.
February 07, 2022
It was a good experience. The admin, nurse & doctor were all very good.
February 04, 2022
Nurses are good people. They treat you very well and with respect.
February 03, 2022
(unreadable) medical team are the best doctors in the world more doctors must be like him and like all of you we have many thanks, many thanks for action.
February 03, 2022
I thought Dr. Yoon presented himself very professionally and handled a what some (INAUDIBLE) appointment with a lot of care, and a lot of ease and integrity and appreciated the professionalism, you rock.
February 03, 2022
I liked the communication between him and me, everything went very well.
February 01, 2022
Doctor and staff are all nice .
February 01, 2022
I had a great experience. Staff and nurses were so nice and polite. All and all I was vey impressed. Thanks to all. [PHI removed]
February 01, 2022
Hi, Dr. Yoon is a fine doctor, and he listened to me, and I'm fully satisfied.
February 01, 2022
When I saw Dr. Yoon, he gave me a very complete examination for an ongoing consideration he has with my prostate. He checked up on what I done before, he listen to what I had to say. He liked the results and made appropriate responses. So I regard him very highly. Thank you.
January 31, 2022
Personable and professional
January 24, 2022
Excellent experience overall .
January 24, 2022
Doctor's office provides great service.
January 20, 2022
He's very respectful, very helpful, very knowledgeable, and it seemed like a great doctor.
January 19, 2022
I'm So glad he was a young doctor, because I am so tired of getting comfortable with doctors then they retire. Especially when after the second visit he will be performing a procedure that I'm not use to, but I find his overall demeanor calming, and very professional.
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