Testimonials

Dr Zhang was an amazing surgeon. He explained all of my procedures and made me feel at ease. He was at the hospital everyday checking on my progress. Even the hospital staff spoke so highly of Dr Zhang. He really cares about his patients. I highly recommend Dr. Zhang, he’s bedside manner was amazing also.

Doctor Zhang is a great surgeon. I was operated on by him and he did a great job. I'm 69 years old and I was up and about in a week with no complications. You won 't find a better surgeon than him around this neck of the woods.

My experience was excellent - I see dr. Z. once a year and the exam went very well. No problems or issues and I'm good to go for another year.

Dr Zhang is an awesome Dr. His respectful time given to listen to patients concerns, Dr explains very well in detail what to expect if surgery is given and provides his personal phone number for patients to call him direct with any questions or concerns! I highly recommend this Dr (Surgeon) for any Hemorrhoid concerns

I am a (PCA) Personal Care Taker and each time my client Which is Dr. Zhang patient each visit he takes time out to introduce himself and shook my hand he treated me as a valid person in the room and to see him take time out with his patient was excellent service when I say take time no rush he listened was patient and showed concern for each question & concern He did not rush he is so personal. The office staff very polite. Dr Zhang saved my clients life she is doing amazing since her surgery she often reminds me how great Dr Zhang is and I agree. Thank You Dr Zhang appreciate your services of saving lives and making life better for many.

Dr. Zhang, did a very good job detailing and explaining the options available to me concerning my health condition. I went to him thinking surgery was the only option. No surgery was needed, and the alternative options help improve my condition.

Dr Zhang was the most professional doctor that I have met. He explained every thing throughly and exactly, he said if this happens then I will have to do this. His bedside manner was perfect for me. When he gave me his personal cell phone number and said if you have any questions or concerns please call me , it will be faster and better . Thank you Dr. Zhang

My Colonoscopy showed a large polyp that was too large to be removed. I was referred to Dr. Zhang for Surgery. After meeting with him at his office, he offered me the opportunity to text him with any questions that I may have. Turns out I had many questions. Dr. Zhang immediately got back to me with every single one answered to my satisfaction. What a great relief to be able to have a doctor respond in such manner because typically every question a patient may ask often has a follow up question. This usually results in talking to a nurse with the outcome of you not getting the response you’re looking for or in a timely manner. Dr Zhang’s bedside manner is outstanding in my opinion. Mylaparoscopic colon resection surgery was performed at San Martin by him. He visited with me at the hospital had conference discussions with the doctors there on my case and I was able to leave the hospital three days after. I had no complications was able to eat my everyday foods. My digestive system reset and became almost normal after a short three weeks. Several of my friends were amazed that I was recovering so quickly! Dr. Zhang once again thank you so much for your expertise, care and support Frank DeSimone

Dr. Zhang is not only a great doctor, he is also a very nice man. He took a lot of time with me both before and after surgery. Highly recommended.

From start to finish, my experience with Dr. Zhang and his staff was great. Having never had surgery before, I was instantly put at ease. Every interaction has been positive. My favorite part is how passionate the Dr is about his patients. You can’t help but smile. I would recommend Dr Zhang to anyone in need of his services!

Professional from start to finish.

He’s a freat doctor that listens to his patients concerns.

Dr. Zhang is the best doctor that I have discovered in Las Vegas. He is very knowledgeable and his practice is very professional and thorough. I have been going to him for over 10 years now and I cant thank him enough with his preventive medicine. His has basically save my life. He has also recommended top professional (MD) doctor to me. Thank you Dr. Zhang!

Dr Zhang made me feel super comfortable even though I was nervous about my health. He walked me through step by step addressing any concerns I had. I’ve never had a Dr give me their personal number to follow up with or if I had questions or concerns but Dr Zhang did. He is by far one of the BEST drs I’ve had/seen. Thank you Dr. Z!!

Very positive. Dr. Zhang was responsive and attentive to all my concerns. I was encouraged to text him with any issues I had and he would respond in a very timely manner. He stopped by the hospital numerous times during my stay there and listened to my comments. I would highly recommend him.

Empathetic, Creative, Quick, Surgical, and professional. As enjoyable as a procedure of this nature could be. Zero complications, as advertised by Dr. Zhang. Thank you!

Dr Zhang is the most caring doctor I have had in a long time. He answers all questions and never makes me feel rushed. No doctor has shown the caring that Dr Zhang has shown me during these last few weeks. Wish LV had more doctors like him.

Dr. Zhang is an outstanding surgeon. The attention and care he gives to all his patients is truly admirable. He made me feel assured during a challenging time in my life. I needed to have my entire colon removed and I'm so glad Dr. Zhang was the one to do it. I have a j-pouch now and a new chance at life because of him.

Dr. Zhang took the time to listen to all of my concerns and made sure I understood my treatment options. He explained everything in a way that was clear and easy to understand, which made me feel comfortable and confident in my care. I also appreciated his bedside manner – Dr. Zhang was not only knowledgeable but also warm and compassionate. It’s clear that he genuinely care about his patients’ well-being.

Let me start off by saying “Dr. Zhang is an exceptional physician and human being who really cares about his patients and his abilities to take care of his patients with the upmost respect, dignity and care!” My first appointment with Dr. Zhang was for a consultation on a possible surgery, to having earned my trust almost immediately, and a week later, I was having surgery under his care. I was literally blown away when he first came into the exam room. He had the most sincere smile and demeanor. The first thing he asked me was to tell him a little about me. We started talking and he was fully engaged on who I was as a person and understanding my background and concerns of why I was there to see him. He brought down any reservations or distrust I have had for doctors in my experience since living in the area the last 12 years. I don’t trust too many doctors in the Las Vegas area due to botched surgery or lack of care after the surgery was done. As if you were just a $ sign in their books. My surgery went extremely well and the care and attention Dr. Zhang provides is one that continues like my first meet with him. I can honestly can say with all my heart, that he the most sincere man and doctor I’ve ever known in my entire life. Thank you Dr. Zhang for all you do and for all you are as a human being. You’ve restored my faith that there are still Surgeons who truly care and got into the medical field to help people overcome any difficult medical issues with not only their professional skills but with their bedside manner too. Thank you and I will always be grateful to you!!!

Dr Zhang was thorough and provided amazing service in an industry that seems to forgot about the patient’s experience fairly often. He shares his cell phone number and encourages his patients to call/text if they need anything. I can’t speak highly enough of my experience with Dr Zhang from a medical standpoint and service. Tks Dr Zhang!

Great doctor, very knowledgeable , values patient and care.

Dr. Zhang made me feel comfortable and positive about my procedure. He as a very good and uplifting attitude towards his patients. This allows us to feel comfortable knowing that we are in good hands. Also, the staff at the hospital took extra care to make us the patient know what was happening and that we were being monitored at all times..

Sir William Osler said, "The good physician treats the disease; the great physician treats the patient who has the disease.” Dr. Zhang not only meets this high standard, but in every conversation with my wife (the patient) and I he definitely exceeded this quality! Dr Zhang’s always treated my wife and I with total respect and equality. After sitting down with us he addressed us like old friends and explained every surgical option available in plain, easy to understand termonology. I was also struck by Dr Zhang’s compassion for the patient and family. He was ALWAYS available to answer questions and concerns that did much more than comfort, but exemplified his true charactor from the initial meeting in his office, through the surgical procedure, and the post-operative period which continued for several weeks. My wife’s surgery, along with her age, complicated the surgery and the post-op period. She thought she was be a nusiance, but in every instance, Dr Zhang talked to her and was always congenial. Barb and I highly recommend Dr Zhang as one of the best COLO-RECTAL surgeons we have ever found. If this experience with him was 10 stars, it would be 10++. Finally, I found his rating as COLO-RECTAL surgeon is at the 85th percentile, while the norm is at the 60th percentile. Finally, I highly recommend Dr. Ren you Zhang, M.D.!!!

I had my first appointment with Dr. Zhang on 7-30-2024. I new I was facing surgery as a result of a large amount of rectal bleeding.I had been living with it for almost two years. Surgery was performed on 8-14-2024. It was a very large extraction, and I'm happy to report no cancer. This usually doesn't happen for someone age eighty. If there's a better surgeon than Dr. Zhang, I would be surprised.

Quick and easy

Great doc, absolutely worth all the good reviews.

Absolutely wonderful doctor. His caring and bedside manner is genuinely refreshing. He sets the tone for his office of kindness and his staff is the best from everyone there. Dr. Zhang is fantastic and I would highly recommend if you need his services. A+++

I have had a wonderful experience every time I have visited. I would highly recommend Dr. Zhang.

Blah blah blah.

Dr. Zhang is the absolute best!! I have seen over 5 doctors in Vegas over the issues I was having. He was the first one to address the issue and actually do something about it! He actually listened to my concerns and did not send me on my way with another medication! He performed my surgery and was very helpful and very professional. Highly recommend!

Dr Zhang was amazing. He listened to my concerns and was able to get me scheduled for surgery very quickly. His staff was professional and handled my leave of absence paperwork very quickly. Morning of the surgery answered all my questions and his follow-up appointments were very complete. I highly recommended him and his staff if you are in need.

Having Dr Zhang as you Doctor is a refreshing experience. Not only is he a great Doctor and Surgeon, but he cares deeply about his patients and their experience with him. He really cares! A Doctor who cares about his work and putting his patients first is a rare find. I highly recommend Dr Zhang.

It was awesome Dr. sang awesome Doctor always very thorough and very good at what he does have no complaints

Dr. Zhang is outstanding!! Highly recommend him and his team for wonderful care!! Joe D.

I loved my experience with Dr.Zhang he was very knowledgeable, informative and caring he was always a txt away ready to answer any questions or concerns I had. He made me feel valued and not just like any other patient I can't recommend him enough

Dr Zhang is a great doctor. He listened to my issues and provided a comfortable environment to talk. I would highly recommend him.

Dr ZANG is extremely knowledgeable, professional and moral. If you don’t require medical attention he’ll tell you what your options are unlike some medical professionals. Honesty not money is how he runs his practice.

I've never had a doctor give me his personal cell phone number in case I had any questions. I call DR. ZHANG MY HERO ! I have been losing blood for so long that my CBC was at 7.7. No other doctor could find out what and where the bleeding was. Dr. Zhang was the only one who helped me. Since my surgery, I have not bled once. God bless you and I will always call you my HERO. I will tell my story to anyone who gives me a chance. I truly believe he saved my life.

Dr. Zhang and his team are extraordinary. During a difficult time, each member of the team guided me through the process and decreased my anxiety and stress. Great healthcare providers and highly recommend Dr. Zhang and his team.

Excellent and very Professional. Dr Zhang explained everything to me. He made me very comfortable. My surgery went better than I expected. I highly recommend Dr Zhang

Dr Zhang and his office staff were more than professional. He was kind and knowledgeable. I felt like I was visiting a friend. Not once was I worried about anything that was a concern. He and all those from his office to the hospital he practices at (Spring Valley), were not just spot on but you could feel their concern and joy in doing their jobs. I truly believe that have such dedicated joyful people to help guide me through the cancer and surgery made me heal faster and kept me calm. I tell everyone about my experiences at both Dr Zhang's office and the hospital. You Dr. Zhang are a joy that the world needs more of.

Dr Zhang is incredible. One of the best doctors in Nevada. Intelligent, kind and extremely competent. His focus is on actual patient care and best health results, while also providing amazing counseling with a terrific bedside manner. Candidly, the best Doctor I have been lucky enough to meet in Nevada. Cannot say enough good things. Thank you Dr Zhang for being all that you are.

Dr Zhang is Totally Awesome. My first visit with him was to discuss surgery he saw how worried I was and answered all my concerns. You don't find very many doctors nowadays that go that extra mile to make you feel better. I would highly recommend Dr Zhang and his office

I had a colonoscopy procedure plus a pre and post colonoscopy appointment with Dr. Zhang. He was very nice and very informative at both office visits, as well as the staff, and the colonoscopy procedure was absolutely fine. I had no problems preparing for it and it went smoothly. It was quite easy. This was my first colonoscopy. I recommend Dr. Zhang.

Dr. Zhang is the best! Every other doctor needs to watch and learn. He treats you with respect and honesty at the same time totally down to earth and is so friendly. I felt so completely at ease and safe under his care. My whole surgical experience from consult to follow up was amazing because of Dr. Zhang. He has my total respect and gratitude. If you’re researching doctors you can stop right now and schedule an appointment!

What kind and explain things to me well

Dr. Zhang managed my pain very well plus was assessable twenty four hours a day. He is knowledgeable and I would recommend him.

Very rare these days do you find a doctor that displays a compassionate and caring personality. Dr. Zhang is that rare doctor. When I met him on my first appointment, there was no doubt in mind , he is the doctor for me. He answered many questions with patience and he provided so much information to my husband and I in such detail. We were extremely comfortable with moving forward to surgery. Thank you Dr. Zhang for being that rare doctor!

Dr. Zhang is a talented doctor. He is extremely professional and listens well. Notable is his ability to explain with precision the pros and cons of various treatments. Everyone in his office is stellar. Overall a wonderful experience.

Dr Zhang provided an outstanding explanation of the procedure as well as valuable insights into the medications that were prescribed, prognosis for recovery and simply a great bedside manner.

Dr zhang is one in a million ! He is a caring and compassionate doctor. He helped me through a very rough time and I feel fantastic. I can’t say enough good things about him! He is in constant contact with you throughout your recovery and actually gets back to you so quickly I was amazed. Thank you for everything!

Friendly, personable. You don’t feel like you’re at a typical doctor appointment. Dr. Zhang makes you feel like every second of your time is valuable. He listens and gives feedback above and beyond.

Dr. Zhang greets you with a smile and handshake and treats you as though he truly cares. He explains in everyday language the steps of the surgery. I was so nervous but I walked out of his office at ease. He was honest and told me there would be pain for at least a week. I can tell you it was not as bad as expected and I feel it is because he is a caring surgeon who I trust. He even gave me his cell if I had any questions, who does that ? I used it the third day and he replied quickly. Usually a doctors office is a cattle call and with this office you will be respected and treated with honesty. I hope to never have to return but my experience with him and his staff is 10+. Thank you Dr. Zhang.

Always, very professional, very courteous and extremely caring.

Dr. Zhang is very good at what he does.

Just a good doctor he knows what he is doing.

Dr. Zhang is very personable, caring, informative doctor. I appreciate his open manner and how he explains what is going on in terms my wife and I can understand. Dr. Zhang is the best.

Wonderful, attentive & extremely caring, amazing surgeon, couldn’t be more happier

From the beginning (2019) Dr. Zhang and his office staff have been very professional and caring. At my first appointment, Dr. Zhang was very professional, knowledgeable, caring, and even gave me his phone number if I had more questions or even needed to talk about my upcoming surgery. He is a wonderful and compassionate man and doctor.

Dr. Zhang clearly outlined the options and which one was optimal for my condition. My surgery was a success and the problem has resolved. Thank you!

Dr Zhang and his staff were beyond helpful, patient, and kind. Dr. Z spent time talking with my sisters and I explaining the procedure our mother was going to have and the risk involved. He gave me his direct number in case we had any questions after we left that we forgot to ask. We ALL had the best experience possible in the situation and would HIGHLY recommend Dr Z for treatment for any surgical needs.

Let be honest cancer is scary. Its hard to get you head around the magnitude of it. Dr Zhang spent time with me, he answered all of both, my wife's and I questions. He even gave my wife his cell number to call if she need to to ask him stuff. He made sure I was being treated right at the hospital. He advocated for better care there when it wasn't to his standards. He did everything in his power to make this a better experience for myself and my loved ones. I can't recommend this man enough. You have made a good choice in your Dr. Try not to be too scared, he will help you get through this. Dr Zhang is what a Dr should be, a human being first most. With Dr Zhang in your corner....You got this! Frank Flanagan Cancer survivor and on team Zhang! Kerrie his medical assistant is great too.

Fantastic Dr very friendly explaining everything about your visit

Dr. Zhang was very friendly and helpful. He explained everything, answered my questions, and gave me options to choose. I felt very comfortable trusting my care to him. I would highly recommend Dr. Zhang and his whole office for your medical needs!

Dr. Zhang is very easy to understand and very helpful!!

Dr. Zhang is the best provider that I have. His bedside manners, compassion, and intellect are second to none.

Dr. Zhang and team are amazing with helping to explain all aspects of pre and post surgery expectations as well as being extremely personable with me as a patient! Thank you for your expertise in handling my case!

Dr Zhang has the most wonderful personal approach, from the day I met him with my first appointment through treatment and then a procedure I needed, Dr Zhang has been the very best in offering me comforting care for everything from my painful condition to my emotions and worries, I was in need of a procedure to correct my problem and Dr Zhang preformed the procedure in the hospital day surgery, I have had complete improvement for my problem, I am very thankful that I found Dr Zhang and I highly recommend him to family, friends, and anyone reading this review. He is truly a wonderful caring Doctor.

Dr Zhang is absolutely incredible and I feel very fortunate and grateful to have been referred to him for an oversize polyp. He was very open and friendly during the initial visit where he unhurriedly took the time to get to know me and explain options. Being uncomfortable with idea of surgery, he suggested an initial non-surgical approach then provided a direct number to call him if I had any additional concerns or questions. He took his time during the procedure (almost an hour) and skillfully removed the polyp eliminating any need for surgery. I would not hesitate for a moment in recommending Dr Zhang to anyone needing his specialty. He is a fantastic doctor and surgeon who is not only very skilled and knowledgeable but exhibits a warm, friendly demeanor and who truly cares about his patients

All was well explained to me.

Dr. Zhang explains in great detail, what to expect, and what he is going to do, and why. He speaks in a way anyone can understand. He is always in a good mood and, happy to see me. I felt very confident in his abilities and skills, to preform the procedure. He kept in constant contact, updating me, on what I needed to do, and what was next in the process. My Surgery turned out with the best possible outcome. For that I am forever grateful. Thank You Dr. Zhang for saving my life.

I was referred to Dr. Zhang and the first day I felt like I've known him for a long time. He was very friendly and the way he explained things were very simple and easy to understand. I've had an emergency and he was able to see me in one day after calling him. The way he does things remind me of the old days where doctors have relationships with their patients. Thank you Dr Zhang.

great

I'm very pleased with the outcome of the procedure performed by Dr Zhang. Dr. Zhang was very informative and willing to answer any questions I might have, even giving me his cell number. I highly recommend Dr. Zhang!

Excellent experience being treated by Dr. Zhang.

I had a serious issue with bleeding internal hemorrhoids, which my then-current gastoenterologist tried to address but failed miserably. I then went to another gastroenterologist who was totally honest, and said that Dr. Zhang, as a colorectal surgeon, was much more qualified to help me than any gastro doc, including him. Well, he was 100% right. Dr. Zhang performed two banding procedures, and the bleeding stopped and hasn't returned. In addition to being an excellent doctor, he's a terrific human being who's very easy to talk to, explained my options thoroughly, and is clearly committed to doing right by his patients. He even gave me his personal cell number to text or call him if I had any questions or concerns! This guy is the real deal, unlike many doctors I've encountered, and I'm very grateful I found him.

Dr. zhang gave his cell phone number for emergency contact which I happen to be gratefully used. I developed a very difficult symptom over the weekend and call to him I was able to solve the problem immediately over the phone. Not only that, but he also called later to check on me how I was doing, I was so impressed by his kind act. He is the most skilled and caring doctor I have ever met; I recommend him highly to anyone who needs superb medical services and a big heart.

I hadn’t had a colonoscopy in probably 6-7 yrs, I knew I needed one and it was time. Dr Zhang was in my network. From my 1st visit and meeting him, he talked to you, answered your questions and made you feel comfortable. Thank you Dr Zhang

Dr. Zhang did a great job and I appreciate that he was always responsive to my questions via text.

The check in process was quick and professional. Dr. Zhang took the time to allow me to give him a complete update on my current condition. He then provided me with what future options I had for a complete recovery.

DR ZHANG ROCKS!!!!!! What an awesome experience. First time colonoscopy. Very nervous and embarrassed. DR. Z. made it a pleasant experience. Great bed side manner and explains things clearly. Guys, and Gals. Get your butts checked. DONT FEEL EMBARRASED OR TIMID. EVERYONE SHOULD BE CHECKED 40-50. I would recommend Dr Zhang to everyone and will. Mass removed and another life prolonged. THANK YOU Dr Zhang!!!!

Dr Zhang has the best bedside manner i have experienced in Las Vegas. He connects with his patient first of all. He is very through and explains in detail the positives and negatives. before surge and after. He answers all questions and returns all your calls/texts. His staff is the best. They all work together to make a better experience for the patient.

I went to see Dr. Zhang for help about a colorectal issue. I was able to schedule an appointment quickly. He spent a lot of time with me, and thoroughly explained the reason for my symptoms as well as possible treatment options. He is an extremely knowledgeable professional. I believe he truly cares about his patients. He is accessible regarding any questions or concerns. I feel that my issue will be completely resolved thanks to his guidance.

I had a minor surgery performed by Dr. Zhang and had no issues, I recovered nicely with very little pain. I am very satisfied. Dr. Zhang and his staff are very professional and I feel like family when there, from point of check in to my visit with Dr.Zhang he takes his time to explain everything and answers all my questions. Thank you all very much.

My gastroenterologist referred me to Dr. Zhang after a cancer diagnosis as a result of a colonoscopy. I am very grateful for his referral! Dr. Zhang made a high stress situation much less stressful. I had a number of concerns before and after my surgery and Dr. Zhang immediately responded to my texts and resolved any issues in a timely fashion. He referred me to a medical oncologist with whom I am also very pleased. My husband and I are thankful for the relationship we had with Dr. Zhang, and for his skills and expertise. Though we hope to never need his skills again, he is our go to man if the need arises in the future.

Dr. Zhang is a great doctor, listens well, explains things well and makes you feel comfortable at every visit.

Dr. Zhang has amazing bedside manner. He's not just interested in you as a diagnosis, he cares about you as a person. He takes his time to ask how you are an actually listens. He's one of the best!

I’m 50yrs old and never had surgery. I was so nervous and worry not only the procedure but the results. Dr. Zhang talked to me without rushing not only he answered all my questions but also my husband’s. I felt like I was his only patient. Before, during my hospital stay and after I knew I could call him. I did call him and he always had time for me. Thank you for caring.

Dr. Zhang was always available for available for questions before surgery and after surgery and I am still able to contact him with any questions or concerns. He checked on me when Iwas in the hospital often and I was very confident in his care. Would recommend him to any one needing colon surgery.

Dr. Zhang is the best. Very knowledgable. He takes his time and listens to my concerns. Explains his procedure thoroughly so i know what to expect for treatments. Very kind gentleman who cares about his patients and is funny. His whole office staff is amazing from the front of the house to the back. Everyone is professional, curteous and always smiling.

Absolutely by far the Best Doctor I have had. Great bed side manners and answers all questions you may have. How many Doctors give out there personal phone number for you to call with any concerns well this doctor does. I would recommend him in a heartbeat. Thank you for giving me my life back

very good explained everthing complete

Dr. Zang has been my surgeon since 2015. At that time I was sent to him because of colon cancer and needing surgery. He explained to my husband and myself exactly what was going to happen. After surgery in which he had to remove the whole colon and large intestines, he was very comforting. He gave me a number to contact him if I had any questions. The few times I used it he was very comforting and helpful. After calling him and him giving me what to do either he saw me at the emergency room or he would call back in a few hours to see how I was doing. He is a caring and honest doctor and they are hard to find in today's world. I trust him completely.

Dr. Ren Yu Zhang has been my Colorectal Physician since 2016. My most recent medical condition has required frequent visits leading up to a procedure to repair a hernia situation. There has never been one occasion that Dr. Zhang's service or opinion was needed that he did not respond to my request. His knowledge, professionalism and concern for my well being has gone beyond excellence. I would highly recommend him and would not hesitate to give him 5+ stars.