Dr. Zimmerman office always encouraged safety precautions. Have mask available if you forget to bring, hand sanitizer available at the front desk. And always kept his office clean & organized. Him & his assistant (wife) Cherrie always so helpful , caring about my husband & I condition. And they have excellent communication to all our treatments. We appreciate both for all your treatment & helping to relieve some of our pain & most important of all less pain medications while being treated. Highly recommend Dr. Zimmerman office. Thanks :) read more

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Had a shoulder injury and decided to go give them a visit. Gave me some treatments that helped my inflammation and adjusted my neck to help with alignment. I also got some helpful exercises to do at home to improve my healing time and strengthening in the future. Great bed side manner and very knowledge. He lived/studied in Taiwan for a number of year and speaks fluent mandarin. read more

Dr Zimmerman is incredible. I suffered a spine injury after an accident and his methods were very effective, with time he has healed me entirely and I'm very grateful to have been under his care. I highly recommend Dr Zimmerman. Thank you. read more

I have worked next-door to him for three years and never even knew he was here. a coworker went to him a few weeks ago and when I hurt my back a week ago and came to work she told me about him, I called got an appointment the next day and let me tell you he is the best I've ever been to! He made me comfortable. He went through everything with me, went over my entire body, and for the first time being in any kind doctors office, I felt heard, And we are on the road to fixing me! I've never felt more comfortable in a doctor, let alone a chiropractor. You can tell he's trusted. It was busy, busy busy, and nobody waited longer than five minutes.. I thousand percent recommend him!!! I can't wait to go back next Thursday. Thank you for asking all the right questions, listening, and actually going above and beyond. I appreciate you.!!! read more

Very professional and well qualified in both chonese medicine and acupuncture. Thank you dr!

He ghosted my spouse! He saw him once for his initial visit did a bunch of random things to him to try and help and asked for an X-Ray before moving forward. My husband got the X-Ray the next day for him and gave him the results. My husband called for 3 days straight and left a message with his wife and never received a call back. My Husband found an amazing Chiro who actually takes insurance set up an appointment and eventually Dr. Zimmerman called back and left a message. Too late, we are very happy with a Chiro who runs a professional business with modern techniques. read more

I have been going to many chiropractor for over 20 years and Dr Zimmerman is a very caring Dr he will put me in on a short notice. I have to say he has made my pain go away with his magic. Dr Zimmerman is the best in my books . I am a medical assistant for 13 years in Diamond Bar and there are a few chiropractor here in Diamond Bar and I have to say he will never let you hang in pain. I always recommend this Dr to anyone that needs to have the best care the office is small but there main concern is the patient thank you Dr Zimmerman your the best!!!!!.. read more

I haven't ever thought of writing a review for a doctor but my experience has been so good with Dr Zimmerman that I can't keep quiet. I first saw Dr Zimmerman 4 years ago when I was having major back pain after a major surgery. When I saw him I couldn't even sit without being in severe pain. The amazing thing about Dr Zimmerman is that he has ALWAYS been able to show me where my in my back is without having to tell him any specifics. After evaluating my condition he quickly went to work and laid out a treatment plan. By the end of the week my pain was reduced significantly. Within a couple of weeks my back was new again. Flash forward to present day and I am again in severe pain. I injured my foot in January. I first went to my MD but he could not find anything. I then went to a Podiatrist who diagnosed me with a condition but it never did get better. I was then sent for a CT Scan and a MRI scan but they still could not fingure out what was specifically causing my pain. I am the one who suggested a potential cause to which the Dr agreed. However, his treatment left in me worse pain! After 11 months I finally got smart. I called Dr Zimmerman who told me to come in right away. He requested my records and came up with a treatment plan. With one adjustment my pain was reduced by 75%! After my second treatment my pain was reduced by 95%! Here are the things that I like about the Chiropractic services that Dr Zimmerman provides: 1) He has always treated my condition and when my condition improved he never tried to get more money out of me by scheduling unneeded appointments or supplements/devices that I didn't need. He has always been an honest & trustworthy professional. 2) No pretense! His office is VERY small and it is run by him and his wife. He will usually be the one to answer the phone. What are the advantages of this? Well, he isn't "removed" from his patients. Dr Zimmerman puts himself in the position to know his patients. Also, by speaking directly to him you are usually able to get an appointment quickly and without any fuss. 3) Chiropractic services are not the only services that Dr Zimmerman provides. He is also a licensed Acupuncturist! He has treated both myself and my wife with Acupuncture with great results. He is able to combine the sciences of Chiropractic and Acupuncture services which is something most Chiropractors can't claim! 4) Several friends and family have received Acupuncture services in the past. One complaint they ALL had is that they could not easily understand what their Dr was saying to them. It makes sense that a person who studies Oriental medicine will likely be from the Orient and likely English will not be that persons first language. Dr Zimmerman is a native English speaker who just happens to speak Chinese fluently! What does this mean to me? It means that we can communicate without any issue. I am not an expert on what it takes to become a licensed Acupuncturist but since this is from China I suspect that understanding Chinese is a benefit. 5) He takes my insurance for Chiropractic services. I have switched medical plans a couple of times and he has accepted each one. Originally I called several Chiropractors in the area and I could not find one who took my insurance OR who even accepted insurance. I recommend Dr Zimmerman and his Chiropractic and Acupuncture services to all my co-workers, friends and family! read more

Great Doctor! He is understanding and cares about his patients and helps you recover from any pain or injury. I got in a car accident and he helped me recuperate my neck from the injury. It's also cool that he is a white guy who can speak fluent Chinese..haha but definitely recommend him and he will take good care of you. read more

Dr. Z is the best there is! I've been coming to this office for a few years now for the occasional adjustment/ acupuncture and also for more specific treatment after 2 car accidents. I have been to a number of chiropractors/ acupuncturists over the last 6 years & prior to being to Dr. Zimmerman's office, I was always on the search for a doctor that could help me & wouldn't just see dollar signs when I walk in the door. None of that sleaze here! This doctor really cares about his patients & obviously enjoys what he does for a living. All of his recommendations were always fair & I NEVER felt like I was just being hustled for money (like I definitely have been else where). There is never a long wait at this office, even though he is really busy, and there's definitely that personal touch. I always come back & give his name to everyone I talk to that has back problems or has an injury. read more

this guy is a hack. all he does is put electronic pulse machines on your back and then uses some kind of pressure syringe and cracks ur back ? when he's busy he has his wife who is NOT a licensed professional administer the treatments!!!! I was in more pain for a week than the original reason i went to see him ! he is a scam tool for all of the ambulance chasing attorneys in the area to bilk the insurance companies! RIP OFF. !! read more

I can confidently say Dr. Zimmerman is the best chiropractor I've sought care from. I've been his patient since September due to an auto accident; he has helped me noticeably recover from aches/pains located on the upper section of my back. I continue to see him even though the discomfort has subsided because I'd like to maintain optimal alignment. His methods also include cupping, acupuncture, gua shua, and more. Following his visits, I always feel more relaxed, have better circulation, and this contributes to my overall well-being. He's patient and approached me with a blank canvas by taking the time to ask a myriad of questions in order to deeply understand possible root causes of pain so he can efficiently heal me. At each visit, he will always check-in with how I'm doing and utilize varying methods on me as well as educate me on physical therapy I can employ at home which contributes to ideal recovery. He's the best all around in being pleasant to communicate with, having mindfulness in healing methods, and being professional. read more

I have been in a terrible accident where I have gotten rear ended,which came in to a conclusion where I needed a chiropractor for my neck and back. I never been to a chiropractor before since I never had any physical problems, so I was clueless in where to start finding a Dr. That was right for me. I had called multiple chiropractors and most of them felt like they were just in it for the money. Then one chiropractor stood out and after I had finished talking to Dr. Zimmerman I knew he was the right chiropractor for me. He has a lot of passion and dedication, he actually listens and cares when you talk to him about your problems. He gives you multiple suggestions in what he thinks should be done, and for me that is a big plus! I have been in therapy for about 3 months and every time I go in to have a fix, I leave his office feeling like a new man. I can't praise him and thank him enough for the outstanding work he had done. I truly recommend him if you want outstanding customer service and an A+ work. If I had the chance to give him 10 stars, I would not hesitate in a heart beat. He also does acupuncture, cupping, and is a veteran to Chinese medicine! read more

I have worked in the medical field for almost 20 years & I can honestly say traditional medicine has only helped me minimally. Dr Z has helped my husband & I get back on the road to good health with a chiropractic & acupuncture. I have never felt better and highly recommend his services to everyone. read more

Dr. Zimmerman works magic. I have been going to him for 4 years for various arthritic problems. He always seems to know just what to do to alleviate the pain. Chiropractic manipulation, acupuncture, and his magic laser all have kept me going. Don't hesitate to go to him, as he can help you as he did me. Linda Taylor, Covina read more

By far the best doctor i have ever seen!! He really knows his stuff and cares about helping and goes above and beyond ...two very rare qualities in a dr nowadays!! He is honest as well which puts him over the top. If only all my long list of doctors were as wonderful!!! Even my husband loves him and my husband doesnt like drs much either. So if you need a chiropractor, acupuncturist or medical evaluation Dr. Z is awesome!!! read more

I walked into his office without knowing him nor any reference, but he was the closest to my location. From the first moment I noticed he was very professional and knowledgeable which made me feel at ease. He helped me with my feet condition and gave me a great educational plan to continue my therapy at home. When I left his office, the pain had reduced by at least 50% and following his indications I'm totally relieved one week after my visit. read more

I am a practicing physician assistant in the Emergency Room. Over the last few years, I realized that medical training was best suited for the ER (allopathic medicine) but not great for chronic medical conditions. I started doing a lot more research and discovered the powers of naturopathic medicine and others in the same class with what we generally call "alternative" medicine. I met Dr Z as we train in martial arts together. We also see eye to eye on a lot of topics involving nutrition and health. I recently got injured during martial arts training and went to get treated by Dr Z. The combination of chiropractic care along with acupuncture has benefited me so much! However, the thing that stands out about Dr Z is not just his skills in terms of chiropractic adjustments or acupuncture but how he incorporates everything together with his knowledge of functional medicine to help people. I highly recommend Dr Z! read more

Dr. Zimmerman is the best chiropractor that I've been to. He goes over and beyond his job to make sure you get the best treatment he could give you. I recommend him to anyone who needs that care, thanks Dr. Zimmerman, Jamie read more

Dr. Zimmerman changed my life. I went from a skeptical, twisted and in-pain type-A personality that thought I could just push through the pain to someone that lives now knowing how to avoid the pain from ever starting. When I do go too far, Dr. Z is there to help align my back straight. I was one of those guys that thought chiropractors were half BS and half luck and am now truly someone that has a quality of life SO far better than before I started coming to Dr. Z. He has taught me exercises that are now a part of my daily routine and have me to the point I can go months (and possibly forever) without coming back - but of course if things do get twisted again, he's there. His approach is patient, transparent, evolving and without question his focus is on YOUR quality of life. I first went to Dr. Z because his office was next door to my building - but now, I'd easily drive an hour to see him if I moved. Truly, do yourself a favor, if you're living with pain, stop, see the guy, he worked with me almost weekly for about a year and I am now at the point I don't need to see him because he has taught me how to properly care for my back but I always appreciate knowing he's there if I slip up. read more