Jens does a great job and really cares about his patients wellness. I like the fact he wants to treat you and make you feel better so you don't have to continually come back. read more

Jens treated me through two pregnancies. During my first I had suspected gallstones and my midwife recommended I do acupuncture. After 2 sessions all my pain was gone. For my second I had suspected gallstones again and it took a few more sessions but eventually the pain was gone. After my first pregnancy I also had my placenta not deliver so with the second, I worked with Jens to ensure I had no issues with placenta delivery again. I highly recommend seeking treatment with him and I couldn't be happier with the results. read more

I have seen Dr. Jens for a sciatica problem, excema (which I found out was a food sensitivity), grinding my teeth at night, and facial rejuvenation (to get rid of the lines in my face and stimulate more collagen production). Dr. Jens is a wealth of information and a very caring doctor. He has gotten rid of many health issues for me without medication and side effects. I highly recommend that you look on his website and if your health issue is listed, make an appointment. You will be so thankful to find a doctor who will help you get rid of health problems instead of masking them with medication. read more

I do not say this lightly - you need to run to Dr. Jens! I have been dealing with some kind of facial neuropathy for 10 months now which no one has been able to diagnose or treat. I have spent so much time and money elsewhere trying to get to the bottom of this but within just two visits, Dr. Jens cracked the code. Turns out I have a Vitamin B sensitivity (which he treated me for with acupuncture) but also a deficiency. He is so incredibly knowledgeable, kind, personable, and empathetic. When he talks to you, you really can tell her cares and wants to figure out what's going on. At such a young age, I felt hopeless and wasn't particularly looking forward to my future. But now, I am filled with hope and have an optimistic attitude toward his recommendations/next steps (PS - he is one of the few holistic/functional doctors who DOESNT try to sell you on something from his office). I honestly feel like even without acupuncture, he is an amazing resource and would help you figure out what's going on with your body! I will quite literally be recommending him to every person I know. So if you feel like I did - hopeless, CONFUSED, in pain, etc, you really must give Dr. Jens an opportunity. I am confident you will not regret it. read more

I can't say enough good things about Jens. He has been so helpful with any issue I have. He is friendly, knowledgeable, caring, and an all around gem. His office is quaint and the staff is always welcoming and amazing. I have been coming in and off for over 10 years. He has treated my insomnia, TMJ, joint issues, and sciatica. He is definitely one of the best in the business. read more

JENS IN AMAZING! He is extremely knowledgeable and does an amazing job of explaining everything. The environment in the treatment rooms are super relaxing and you never feel rushed. Jens is a one of a kind and I 100% recommend him. read more

I had my very first acupuncture session yesterday with Jens and I am so excited to tell people about it! After realizing that my co-workers probably have more important things to do than listen to than my forays into alternative medicine, I thought "Ah-ha! This calls for a Yelp review!" My chiropractor (Dr. Pam at Absolute Chiropractic, review to come!) recommended I see Jens to see what he could do for a harmless yet insanity-inducing beeping in my ear that I've had for about a year. The result? While the beeping is still there, it is much more of a "background" sound in my head now and sometimes it's not even there at all! This is after one treatment; I will definitely be going back! Jens was great -- he and his office staff made me feel at ease right away. He explained things to me with easy to understand analogies and has a most enjoyable bedside manner. The office, a converted house, is comfortably and feels welcoming. It is warm in there though, which you'll be thankful for during the session. Jens made sure I would have no surprises during my treatment and also explained that acupuncture may not be able to cure my specific ailment, in which case, if I did not see improvement, it would not be worth it to continue down this treatment path. This man is legit -- he will not try to book you for additional sessions if it is not working for you. The needles-being-poked part was surprisingly easy. Jens chatted the whole time and only the first one hurt and even then it wasn't excruciating at all. After the needles were inserted, I was left in the room with the lights dimmed and soothing music and the sounds of a waterfall to relax me. It was a very peaceful atmosphere and definitely did not feel like I was a human pincushion. Besides this birds-chirping-in-the-ear issue I'm having, I am also looking forward to having Jens treat me for various other conditions, like my allergies and eczema. Oh, to be "conditions" free would be awesome! FYI - Jens also has an office space in San Ramon, at the Bodylines Day Spa. read more

Dr Yens is so kind and down to earth!! My first experience was very positive and relaxing! Made another appointment and look forward to another great visit! read more

Dr "Jens" is the very best --he is very compassionate and devoted to the field of acupuncture--so knowledgeable. He makes you feel very comfortable and answers any and all questions. He never rushes the session and genuinely cares about his patients. If you have a question -he will have an answer--and if he doesn't have an answer at time of session;he will get the answer for you in a timely manner. I am so grateful to him for helping me alleviate pain suffered. read more

If you're looking for a doctor who will help you find a long-term solution to fix the root of your problem and not temporarily relieve a symptom, I highly recommend visiting Dr. Jens. For well over a decade I've been suffering from abdominal and digestive issues. I've seen an unreal number of doctors and specialists over the years who have grossly misdiagnosed me and pushed drugs on me that have only made me feel worse. A friend recommended Dr. Jens. I was a bit hesitant at first as I've never attempted alternative types of medicine, but I was open to it. In my experience, Dr. Jens is willing to listen and genuinely cares about your health and well-being. He and his staff are also very kind and inviting. Since I have been seeing Dr. Jens, I feel that we have identified some of the true issues and started working on long term treatments. For the first time in years, I'm actually in a comfortable place with my body. I've felt far less symptoms and started to feel real progress. If you're having abdominal and/or digestive issues and just can't seem to find positive direction, I highly recommend reaching out to Dr. Jens. read more

Both my husband and I have been treated by Jens with incredible results. I found Jens by looking for an alternative solution for my husband's debilitating carpal tunnel. We thought we try it and after about 4 acupuncture sessions, my husband was totally symptom free. since then, Jens has introduced him to a new dietary regimen that allowed him to get his blood sugar in check with supplements, cleansing and a healthy diet so that he is completely med and insulin free with normal blood sugar levels. I had a problem with intense pain in my shoulder so that I could not lift my arm and after a week of 4 acupuncture sessions, I was as good as new. I really can't say enough about the great work that they do at AAC. Our lives would be very different had we not started working with Jens. Seriously life changing stuff. Now that I'm starting to get those lovely mid-50's mood swings and personal summers (if you know what I mean), I'll be getting back over there for some herbs! read more

Wish I could give 10 stars! I have never had acupuncture before. I have been dealing with severe vertigo for 2 years and have seen 12 different physicians. I had never ending tests including X-rays and MRI's, audiology testing, physical therapy, at home exercise programs, etc. I hit a plateau and nothing I did helped. I was unable to drive except for very short, local trips that involved no traffic. I had a number of falls which produced broken bones. All in all I was barely able to do anything without fear. A friend recommended Advanced Acupuncture Centre and I was able to get an appointment that day. I had ONE treatment and it WORKED. Jens Maassen Is absolutely wonderful. I am even back on the golf course! My life is back to normal. ONE treatment! I cannot speak highly enough of my experience! read more

I sent them an inquiry about a culling appointment and never heard back. Maybe they are on vacation?

I was suffering from the terrible anxiety and insomnia. I went to tons of doctors and tried all possible meds, but nothing worked for me. I lost hope and didt expect much from this place either. I did acupuncture before but havent felt any difference. After the 1st treatment at Advanced Acupuncture, I couldnt believe I started feeling normal again and started actually enjoying life again. It is a miracle. My anxiety is gone and I sleep a lot better. Dr. Maassen is one of kind. He treats your body as a whole and not as a set of different organs like in traditionally medicine. I am going to address my allergies here as well. I was super skeptical, but now I am so happy I went and I am sure he helps you too. read more

Jens Maassen at the Advanced Acupuncture Center is THE man to see if: a) you've always wondered what acupuncture is all about and just want to give it a go to learn how acupuncture might improve your overall health. b) you've always wanted to try acupuncture but are afraid of the needles. Yes, Jens indeed uses needles but he's very gentle and it's really not painful at all! c) you have specific health challenges that you want to approach in a holistic fashion (or maybe your other docs just don't know what else to do to get you better). Jens has helped me to improve and balance my digestive system (and it wasn't terrible in the first place), circulation issues and back pain on several occasions (e.g. sciatica to name just one). Overall, the treatments I regularly choose to receive from him are balancing me so much not just in the physical sense but just as much on an emotional and mental level. It's truly an overall healing experience! Lastly, I'd like to mention that Jens offers so much more than acupuncture. From herbs to other dietary supplements, eating right for your personal type kind of advice (and he's usually right on!!) as well as other techniques used in Traditional Chinese Medicine such as cupping (awesome!) and many others. I'd refer anybody to Jens who is serious about making positive changes in their lifestyle and general health and/or is looking to get relief from chronic pain or ongoing dis-ease. He's very knowledgeable, kind, gentle and has a great sense of humor. Additional bonus point - Jens not only works out of his Livermore practice but also offers appointments through Bodylines Day Spa in San Ramon. read more

My massage and bodywork practice has me knotted and tight in my shoulders and arms. On my first acupuncture visit to Jens I requested him to work on those specific areas of tension. The session was good, but the second session was amazing! At the second session I didn't make any specific request, I wanted to see what he felt and what he could do according to what he perceived needed to be done. That was the most amazing acupuncture session I've ever had. I could feel the energy work it's way through to different points and connect acupuncture pathways from top to bottom and left to right. Jens' work is amazing. After that session my shoulders and arms felt great. I was relaxed and felt strong at the same time. I felt good energetically. It's amazing to have energy flowing through the body because usually I don't have a sense of that. He's studying for his PhD, Jens does great work, he's a master at his art and I'd refer my clients to him in a heartbeat. Thanks Jens. He's the guy to go to in the Tri-Valley for acupuncture, and not only for his work but he's also a great guy! read more

We used Jens for our entire family of 5 ! He absolutely helped change our lives and I can't recommend him highly enough! read more

On my first visit, Dr. Maassen spent over an hour with me gathering medical history and answering my questions. I've never had a care provider give me that much 1 on 1 attention. I've now been a patient for 8 months and always have a relaxing and therapeutic experience when I visit AAC. For those who are wondering, the needles are not painful at all. Give it a try! read more

Hands down, Jens is just wonderful! Not only excellent at his acupuncture, he is also versed in Chinese medicine and nutrition. He personally has experience with Gerson Therapy, and I was just impressed he had even heard of it! He is truly a caring person and wants to help you improve your health and wellness. What a nice change! No upselling here in this office, and you receive plenty of time and attention in your appointment. Jens also offers NAET if you are seeking allergy relief. My husband has seen Jens and also my young son (age 3 for NAET). I find Jens to be an amazing resource and can always count on feedback from him as I modify and improve my personal health & wellness plan. We are so lucky to have his Centre right here in Livermore! Parking is easy with space in front of his office, or in front of the other residential buildings. I also find it easy to make appointments, and there isn't a huge back log where you have to wait. read more

I took my son to see Dr. Jens for chronic ear fluids due to a chronic running nose and I strongly suspected food sensitivities. I was very pleased to find out the unless the allergy testing our Dr. did, which was uncomfortable and gave no results, Dr. Jens' method is very pleasant and also confirmed some of my suspects and others. The treatment was pleasant as well and now we can finally get rid of this chronic problem. Dr. Jens is very knowledgeable and he is also an amazing person. He gave us many tools going forward and now we can improve our diet as well. We will definitely continue with the coarse of treatment! Thank you Dr. Jens! read more

My wife has been dealing with migraines for two years. They are triggered by some colors and patterns. We when to Jens on the recommendation of a good friend. The office is professional, relaxing and comfortable. Jens spent a lot of time talking and listening to my wife then explained the procedure. It was painless and relaxing and the best part is, her migraines are significantly better. Places she could not go in to she is able to enter. read more

Everyone in my family has seen Jens for one reason or another over the last few years and we have always met with success. The other night my daughter was in a great deal of pain with what thought was a pinched nerve in her shoulder. She couldn't move her arm! She's only 12 and taking ibuprofen long term just didn't seem like an ideal treatment for her (or anyone else for that matter) so I called Jens at 8pm and wonderful Vanessa answered and made an appointment for the next afternoon. Jens helped my daughter before with severe tendonitis so I knew this would be the way to go. After the appointment she said she felt better, then she woke up this morning with total mobility and zero pain! I HIGHLY recommend Jens for whatever ails you. read more

Highly recommend Dr Jens. He is so knowledgeable and caring, my experience has been great not only with him but also the staff. They truly care and want you to get better. I'm thankful for the treatment I received the couple of times I've been there and will definitely go back. read more

I was experiencing severe pain and immobility from an injury. I called Advanced Acupuncture Center and Alma was able to get me in to see Dr. Paula within an hour. Dr. Paula examined me and treated me right away. Her expertise was evident immediately. She treated pretty much my entire body. She took her time, explained each aspect of treatment, noted and mentioned issues I had not even brought to her attention, and the result was wonderful. I was surprised at the immediate relief I received as I had been treated elsewhere years ago with acupuncture without result. I honestly felt 90 % better! Everyone I met in the office was professional, nurturing, and genuinely seemed to care. I really can't say enough great things about this practice. I wish I could give them more than five stars. read more

I went to see doctor Jens Maassen to see if he could help my son with his dairy allergy and other food sensitivities that I couldn't pintpoint. He was very receptive and warm from the get go. He explained the treatment and in three appointments we were able to figure it out what was causing discomfort in my baby. He is very kind, calm and profesional and his office feels very peaceful. I'm very happy we found him ! read more

Dr Jens changed my life. And that statement is no joke. I had been sick for years, single mom, spent countless hours and massive amounts of money at places like Stanford, UCSF, doing every test under the sun. No one, no one could help me. I decided to try Dr Jens as my last option. Within 10 minutes of listening to me talk about my symptoms, the doc already knew what was wrong. He gave me suggestions.. Simple purchases from a vitamin store and within a month I felt better. Within 6 months my life was drastically different. He literally saved my life. If I hadn't seen him when I did, I have no idea where I would be today. Definitely not able to take care of my child like I can now. He is honest and genuinely wants to bring healing to people. I CAN'T say enough about him. I continue to see him and won't go to anyone else with health concerns! Do yourself a favor and see Dr Jens. read more

Dr. Jens was friendly and super helpful. He helped me finally feel better after months of dealing with other doctors and meds. I will definitely be coming back and highly recommend him. read more

Dr. Paula is amazing! Her energy work is so personal, Intuitive and comfortable that I dont have words to describe. On top of being very confortable, it is very deep, meaningful and effective. She is a treasure!Your review helps others learn about great local businesses. Please don't review this business if you received a freebie for writing this review, or if you're connected in any way to the owner or employees. read more

My sister recommended that I try acupuncture to help my back issues and improve overall health, but I was worried about the needles, especially sterility/cleanliness. After much research, I found Advanced Acupuncture Center and Jens Maassen. Their website provided helpful information and I booked an appointment. During the first appointment, Jens spent considerable time patiently explaining acupuncture and the process, showed me the needles, and encouraged questions. He asked questions about my health and background to identify issues that acupuncture could alleviate (e.g., stress was a major issue for me, due to my job). The acupuncture session itself lasted about 40 minutes, but we probably spent 20 minutes in discussion beforehand. Jens uses the tiniest needles, which were thinner than the average sewing needle. Jens is very gentle with the needles and, for the most part, just pricks the skin. There is the sensation of slight pressure on some parts of the body (for me, it was the front of the legs). I can't say that I enjoy the process (I hate needles), but it was not painful and Jens makes sure that you are comfortable. The result of the treatment was excellent; I felt more energetic and (surprisingly) more relaxed in general. Also, my back pain was reduced. The best part about Jens is that he really combines the philosophy of eastern medicine and the science of western medicine. His office is very clean and sterile but yet has a relaxing and zen feel. I highly recommend the center and Jens. read more

I visited Jens last week with some difficulties. He was so informative and caring, made a few suggestions including using an essential oil both internally and externally and I am feeling much better and the oil is working. I am so grateful for his expert knowledge and the time he spent with me. His acupuncture treatment boosted my immune system and I'm back to my normal self. I would highly recommend Jens for any difficulties you are having. Another positive asset is that is empowers his clients, which I love. read more

This is a hard review to write, everyone gave this place five stars, heck that's the reason I went here. I have never tried acupuncture and don't know anybody who has. I recently learned that kaiser and many HMO's offer acupuncture so I thought that added some legitimacy to this new thing to me. I made a appointment and they fit me in on short notice the next day. I met with Dr Jens and I liked his attitude and his sense of humor and professionalism . We spoke in depth of my back pain and he said he should be able to get me 60% -80% better on the first visit. Needless to say I was ready!!! His treatment took a little over a half hour and when it was over I felt no different, Dr Jens said I might feel the results by the next morning.....nope. So how to rate this business .... Nice facility with a very nice staff..... Sadly the service provided did nothing for me..... I understand acupuncture doesn't work for everyone so I'm not mad, just bummed . Lesson learned.... A million five star reviews doesn't mean it will be a five star experience for me. read more

I actually used YELP reviews to pick my acupuncturist! Jens is fantastic. I'm not a "new age" kind of person, but was dealing with some serious medical issues and thought, "what could it hurt"? Jens spent an hour and half with me going over my diagnosis, discussing his background, which is both western and eastern medicine. He discussed nutrition, allergies, and a myriad of other possible contributing factors that could be exacerabting my autoimmune reaction. We did some allergy muscle tests...and I'm a skeptic by nature, but WOW. It was eye opening. We did a series of acupuncture as well. I was on medication at the time, so Jens was very honest in telling me we would really have no way of tellling if the acupuncture was helping or not. I appreciated his candor. I do believe it helped, as I'd been on the medication for close to 6 months with no change. When we added in the acupuncture, I was flare free and off the meds within a month. Now, I have nothing to compare to this, but I do know people...and Jens is a good guy, very honest, very gentle. The facility is very relaxing and clean. I would have no problem recommending him to any of my family or friends! read more

I saw Jens to treat a chronic back problem which has gone on for about three years. First of all, Jens has an extremely professional and relaxed approach to healing, and was very careful to explain everything he thought was going on with my back and what the benefits of acupuncture are. If this is your first time with acupuncture I highly recommend seeing Jens as he will put you at ease with the process and help you to understand what's going on. The actual treatment was not only painless but enjoyable. Afterwards I felt extremely relaxed and refreshed, and just two days after my treatment my back feels much better and I feel that I'm starting on the road to recovery. I don't think acupuncture, or anything else for that matter, is a magic bullet as some people claim, however I look forward to going back for more treatments and I think it can be an important piece of recovery. I highly recommend Jens! read more

Great acupuncturist and diagnostician who cares about my aches and pains. I have digestive problems and allergies. I have found that his treatments are customized for my needs. I have been to acupuncturists before seeing Dr. Jens Maassen, he is the most gentle. I appreciate that he has two locations read more

My daughter and I have both been treated by Dr. Jens, and it would not be hyperbole to say that he has changed our lives. My daughter had a sugar sensitivity that caused a narcotic level response in her (personality change, etc.). One visit to Dr. Jens and she is able to enjoy treats with her friends again. read more

Wow! I've had a chronic pain on my neck due to herniated disks on my cervical (C5, C6, C7). I was tired of the pain meds and wanted to give acupuncture a try. Dr. Jens helped to reduce the pain in one session. Amazing results!!! Dr. Jens is the most compassionate person I've met. I'll definitely go again and highly recommend their practice to everyone I know. read more

Dr. Tsai is a kind, gentle practitioner who cares tremendously for each patient. He remembers each patient and greets them by name. He brews tea and sits down to drink with his clients creating a friendly family-like atmosphere. I am always amazed how good I feel after a treatment and I am impressed with the concern he shows me each time no matter how busy his office is. read more

Jens, the owner, is amazing! He is gentle, explains everything, and is not pushy. He answers the phones, which is great so you don't have to deal with receptionists not knowing the answers to your questions. And when I happen to miss him and leave a message, he calls me back within hours. Also, he is the one that does the accupuncture, so you know you're not getting some new accupuncturist, fresh out of school. Being a registered nurse, I was pretty sceptical of accupuncture, but western medicine wasn't helping me, so I figured I'd give it a try. I have had great results with Jens! His base of knowledge is impressive and he is not pushy with making appointments or buying herbs or supplements. Also, he explains everything and is very sanitary. Jens is amazing and I would reccomend him to anyone. If you're not sure, like I was, you can call and he will give you a lot of information over the phone. Best of all, it's only $40 for your first visit (other places I called charged $150-190 for first time visits) so why not give him a try? read more

My first appointment was pathetic . The woman acupuncturist didn't really have any compassion or Bedside manners . Yes one treatment actually reduced the pain in my feet but I won't be going back . If a doctor doesn't show interest but tears you like a product in a store that's a big problem ! read more

I tried everything conventional medicine had to offer and did not get better. I had Pain in my hands from overuse, for 6 YEARS. I thought that it was low risk to try acupuncture. I am so glad I took the chance. I see Dr. Jens. The improvement is astounding! It was also surprising to me because it was painless, and incredibly relaxing. For Westerners is is kind of baffling to think that a few tiny tiny needles could change your life, but the treatment I have had in my 6 visits to date have changed mine. If you are on the fence I would suggest that you give it a try. I would suggest that you leave plenty of time in your day. After placing the needles you rest comfortably for some time. I generally fall asleep or drift in a near sleep state I have been surprised at how much time goes by. I am sure if you had a time limit they would get you out on time, but I want the long sessions because they are so helpful. A bit about insurance- mine allows 12 session in a year, it is covered at 100%. I really like Dr. Jens. He is a smart, funny, kind, gentle person. If you need stitches or a bone set go to a conventional Doctor. For medical conditions that have gone on for a while consider another way. I am glad I took the chance. read more