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Dr. Chan is friendly, knowledgeable and approachable. I like the fact that he sat down with me, went over all of the treatment options and answered questions about the pros and cons of each. He prompted me to ask all of my questions and didn’t act like he was in a huge hurry to get to the door!

Karen MunigaWillis, TX

Professional and very easy to talk to. Extremely efficient! Would definitely recommend to friends or family.

Corey ThompsonPorter, TX

Dr. Chan is everything I would want in a doctor which is hard to find these days. He is attentive and listens and personally calls with test results, etc. I would highly recommend him to anyone.

JimThe Woodlands, TX

My husband is a patient of Dr. Chan, so when I needed to have a catheter removed from a recent surgery, he took me there. Dr. Chan and his staff are very friendly, caring and concerned professionals. I would highly recommend him to anyone, male or female. I was treated with great respect.

Sharon AswellKingwood, TX

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I am very satisfied with Dr. Chan, he is very professional and truly listens to my needs and concerns.

Sandra CassoConroe, TX

As good of an experience as one could expect. Professional, calm, and pain free. Honestly recommend.

Conroe, TX

Dr. Chan demonstrates all the characteristics I am looking for in a Physician. Attentive to your concerns, solution oriented, great staff, very professional.

He is what I look for in a doctor. Concern and intelligence. I feel very confident in his diagnosis and recommendations.

Tom DCypress, TX

As a provider, I strive to make sure I provide excellent care to my patients and so it is important to me that I find someone who shares that concept. Dr. Chan is well-educated and has a great patient-provider relationship. He takes the time to answer his patients’ questions and puts his patients at ease.


Dr. Chan and staff were very courteous, ease of access was good as were facilities. Dr. Chan answered all of my questions (at my level) and raised some that I had not thought of. Thanks Doc - see you in 3 months.

Greg GowMontgomery, TX

Who doesn't love this Doctor? Dr. Chan has got to be one of the kindest physicians I have seen in a long time! He is very knowledgeable, easy to chat with about embarrassing topics, and ensures that you leave with a very clear understanding of your visit.

The Woodlands, TX

He is probably the easiest Doctor I have had a conversation with. He has the best bed side manor. I will recommend him too others. He took the time to address any issues that I had. Looking forward to my next visit. The office staff and nurse were extremely helpful and friendly.

Doug ThomasSpring, TX

Dr. Chan is exactly what you would expect in a doctor. Gives you all the time you need and explains diagnosis very well. I used him for kidney stone surgery and it was a better experience than I expected.

GarySpring, TX

I will certainly recommend Dr. Chan to all my family and friends. Dr. Chan takes your concerns seriously. He actually took the time to review my records with me, that's how I knew he really cares about his patients.

Marissa ManglonaConroe, TX

Dr. Chan is the ultimate professional. He is caring, compassionate and is willing to take the necessary time to answer all questions and ensures that you feel like a valued person and not a statistic.

Gary MitchellSpring, TX

I have been searching for a Urologist who could help my issue for over 10 years. Dr. Chan is the first doctor who has taken the time to find a solution. The best doctor I have seen in years. Thankful I have found him!

The Woodlands, TX

I would recommend Dr. Chan to anyone in a heartbeat. He was very pleasant and asked questions not only about my medical history, but personal information as well in order to get to know me. He was very helpful in diagnosing my situation and recommending a solution. Good visit.

Fred NewtonSpring, TX

Dr. Chan is the best! Pleasant to speak with, not rushed, and actually calling himself to discuss lab results!

OliverKingwood, TX

Excellent doctor. He was very thorough and professional. He took the time to really listen to me. I appreciated his calm manner and ability to pinpoint my problem.

P.D.Montgomery, TX

Dr. Chan was very professional and well spoken. Seeing a doctor sometimes can be very intimidating based on possible outcome. But he explained everything very well and made me feel extremely comfortable. My doctor of choice going forward.

Quick and relatively pain free vasectomy. Excellent job!

AFHouston, TX

Dr. Chan made my visit really comfortable, listening to my concerns and making time to get the right medication for me! Feeling a lot better! Thank you, Dr. Chan!

Ann Gleeson-AltonKingwood TX

I loved Dr. Chan! He took the time to understand what I was experiencing and had solutions. But not only that, he wanted to find out the why, not just the fix.

Houston, TX

I had been sick for over a month. After being sent home from ER and 3 doctors, Dr. Chan found my problem. A kidney stone. Surgery and it was removed. I was so relieved to have found a competent doctor who listened. Dr. Chan is the best!

Mona HambyConroe, TX

Dr. Chan was very personable and professional. He let me describe my problems and he actually listened to me without being rushed. I decided to have a procedure done and asked him how long it would take, thinking 2-3 weeks, he said let’s do it now. The procedure went perfectly.

SteveMontgomery, TX

My first visit to Doctor Chan. Not exactly the most comfortable reason to be visiting but he makes you comfortable and asks questions you might not have thought of. First impressions go a long way and he will be my doctor for these issues for good.

Edward BrierMontgomery, TX

Dr. Chan was an amazing doctor. I am an extremely picky person when it comes to doctors and he definitely meet all my expectations. He was a very genuine person who actually seemed to care!

LaurenKingwood, TX

Dr. Chan is FANTASTIC. He had to deliver a very bleak prognosis to my Mom. His bedside manner was excellent. He is the BEST that we have ever gone to.

Donna EllisSpring, TX

I saw Dr. Chan since my regular doctor was out. He fit me in immediately. My case is unusual and I could tell he had read my history before coming in the room. I was so impressed by that. I am a RN and could tell right away this was a great doctor!!!!

Tami SmithConroe, TX

I was very impressed with Dr. Chan. I have seen several urologists over the year. I found him to knowledgeable, thorough, and very pleasant.

Dr Chan is amazing!!!!! He's very thorough and makes all his patients feel very comfortable. Not only did he do an amazing job on my surgery, he was able to schedule my schedule in a pinch. He takes pride in his job. I wish all dr's were like him. There aren't enough stars to show how awesome he is.

Jamie SandersThe Woodlands, Texas

I had continual UTI's for over a year until I started seeing Dr. Chan.

TJWoodville, TX

Dr. Chan has extremely impressive credentials that have prepared him to diagnose accurately and find solutions. He is attentive to the patients’ descriptions of issues and is patient and available to answer questions. Two other doctors I see have described Dr. Chan as "the best in his field".


Dr. Chan was excellent! He was not rushed, was very thorough, and sincerely interested in understanding my reason for the visit. I highly recommend him.

Humble, TX

Dr. Chan is a caring & kind man. He really cares about his patients. He has excellent knowledge and communicates well with patients....I would recommend him to anyone needing a superior urologist.

Ruth RabinowitzKingwood, TX

Dr. Chan is amazing! Following a trip to the emergency room, I had an immediate need for a urologist. Thankfully a friend recommended Dr. Chan. The next morning, his nurse scheduled an appointment with him that morning. When it was clear that I needed surgery, Dr. Chan was able to rearrange his schedule to get me on for ureteroscopy.

Conroe, TX

Great experience with Dr. Chan, he clearly explained what I should expect during and after surgery. Everything was performed as explained and recovery was quick.

Dr. Chan is one of the best doctors I’ve seen. He has awesome credentials. Don’t know how he’s achieved so much at his age. His bedside manner is wonderful. He’s very patient and down to earth.

TaniaSpring, TX

Exceptional very short waiting time Dr. Chan was so easy to talk to and explain how he was going to help me. I was very comfortable for a first visit. My granddaughter was with me, she is a CNA and said she is going to choose Dr. Chan when she needs a Urologist.

LauraMagnolia, TX

I've seen Dr. Chan about 4 times. He has always been very good at striking a balance of being friendly, personable, and professional. He not only gives me his recommendations but also gives me a breakdown of alternatives and costs. I've had good results and will continue seeing him in the future.

RobertSpring, TX

Dr. Chan is the second urology doctor I have seen. He did more tests and exams in one visit than my old urology doctor did in four visits. He gave me options to explore. I am very happy with Dr. Chan.

AliciaMagnolia, TX

Dr. Chan has always greeted me with a warm, caring smile. He's always very informative with my condition and answers all my concerns. I would definitely HIGHLY recommend him to ANYONE.

Melissa JCleveland, TX

Very little wait time (I think I might have waited 10 minutes). Exceptionally great bed side manner. Really listened to my thoughts and concerns and suggested a proposed plan of medical care that made sense to me as an RN. I never felt rushed or hurried because he had other patients to see.

MichaelSpring, TX

Now Seeing Patients in the following offices:

Greenbrae Office
1240 S Eliseo Drive
Suite 200
Greenbrae, CA 94904

Napa Office
3250 Beard Road
Napa, CA 94558

Petaluma Office
1496 Professional Drive
Suite 603
Petaluma, CA 94954