W Plus Dental
Tae Sung John Ku, DMD:
Practice Profile Page


W Plus Dental
Tae Sung John Ku, DMD
Washington, DC













A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 10:00 am to 7:00 pm

Tuesday: 10:00 am to 7:00 pm

Wednesday: 8:00 am to 2:00 pm

Thursday: 7:30 am to 2:00 pm

Friday: 7:30 am to 2:00 pm

Saturday: 9:00 am to 2:00 pm

Sunday: Closed


Dr. Tae Sung John Ku, DMD





Check out what some of our happy patients are saying about us:

Esther M. from Washington, DC (Source: Yelp)


I don’t usually take the time to write reviews, but seriously Dr. Ku is the most professional and thoughtful dentist that I have been to. Unlike many medical professionals, he takes the time to sit and answer your questions. You never feel rushed and he never tries to upsell you. His entire team is courteous and generally focused on customer service. I’ve never had to wait for my appointment because they are always on time. I highly recommend his office.

Navid Salimian (Source: Google)


W+ Dental is the best! We’ve been going there for about ~3 years now and even though we’ve since moved further away, we still make the drive back because they are worth it! • Office is clean and sanitary • Very friendly office staff / hygienists • Very easy to communicate with (your choice of calls, emails, or texts) • Nice dental equipment • Very thorough / detail oriented • Dr. Ku has a hypoallergenic emotional support dog to help comfort patients. To be fair, I’m not sure if the dog is there all the time, so if this is important to you, you might want to double check! He’s been there every time we’ve gone, but that could just be a coincidence!

Brooke Shannon Russell (Source: Facebook)


Went here for an emergency when an old temporary crown fell off, and Dr. Ku was so accommodating and helpful that I kept returning. He makes treatment plans for his patients that are clear, understandable, and work with your insurance and schedule. All the staff are talented and I’ve had nothing but excellent service and dental work done here. They always let you know the price of services before you schedule the next appointment. I’d recommend this office to anyone.

Margaret C. from New York, NY (Source: Yelp)


Dr. Ku and his staff at W Plus have been a fantastic find. The front desk staff is excellent. They’re well organized and provide information on insurance payment ahead of the visits, along with regular visit reminders. Their equipment is all new, including the 360 x-ray machine which is much more comfortable than the individual x-rays I received at my old dentist. After my first cleaning, the hygienist located three potential fillings, which Dr. Ku observed and confirmed. He took photos of the teeth with a small camera and was able to show me the specific locations where the fillings were needed and compare them to several other locations that were fine. I’d never seen a dentist use a tool like this, and it was helpful for me to be more informed going into my fillings.

Allison Lopergolo (Source: Google)


I suffer from sever dental phobia. The people at the office put me at ease. The front desk guy, I forget his name, blonde guy was so sweet. Micah cleaned my teeth so gently & taught me how to properly floss and brush. She’s so sweet. Dr.Wolf was so understanding and worked hard to make sure I understood the drama with my teeth. Kim took the time to sit me time and explained payment arrangements. This office is incredible.

Jo P. from Washington, DC (Source: Yelp)


John is by far the best dentist I have had. I have been always so afraid to see a dentist and I have been avoiding it for the longest time. John totally changed my perceptions of a dentist visit and I have actually enjoyed it. First, the place is so nice and clean and it felt like a spa. John was so patient, gentle, professional and honest. He performed the cleaning and three cavity fillings so carefully that I barely felt anything. He also made me a detailed treatment plan and explained everything going on with my teeth to make sure I get the best care. His staff are also so nice! He and his staff made sure I was comfortable through every single procedure multiple times. I will go back to see him soon and I can’t wait to have all my dental problems solved! I highly recommend everyone to go see John if you ever need to see a dentist!

Yu S. from Morningside Heights, Manhattan, NY (Source: Yelp)


Nice, spacious, bright office with friendly staff. Easy scheduling and Doctor Ku’s seemed really good at what he does. Had a small cavity, only took him 10min to take care of it. Much better experience than my previous dentist. Dental hygienist Gigi did a thorough job with my teeth cleaning. She was patient and gentle and didn’t rush the procedure at all. Highly recommend their office!

Jakub Sawina (Source: Google)


I just want to give big thanks to Maika and the whole dental office for keeping things very clean and very professional during my visit. This was my first ever visit at the W plus dental office and I was very satisfy. My temperature was checked and everyone was so nice!! My hygienist Maika took a great care of me during my cleaning! She was general, detailed and explained things about how should I floss to maintain a good care of my teeth. I highly recommend booking an appointment with her and the W Plus Dental office.

Jeremy Turret (Source: Google)


Let’s be honest, we have all been to some crummy dentists. In fact, I used to think that my old dentist was great…they weren’t. W Plus isn’t a good dentistry practice, it’s a *great* one. It’s spotlessly clean, appointments are normally available in less than a week, and cancellation policies are reasonable. They are upfront about their pricing, and they take most insurance. Even if those were the only Pros, it would probably be enough to make them better than your other dentist. Add to that the fact that they have the latest technology (Handheld X-ray Machines!?) and the dentists i’ve seen (Dr. Ku and Dr. Wolf) seem to be up to date on their study, have great bedside manner, a lot of patience, and are very very good at being dentists. Procedures are faster and hurt less, in my experience. It’s been a pleasure watching Dr. Ku’s practice grow over the last few years. Stop looking for better dentists, this is the one you want.

Joel S. from Charlotte, NC (Source: Yelp)


I highly recommend Dr. Ku if you’re looking for a new dentist in the D.C. area. I recently visited Dr. Ku because I was having significant pain in my teeth. Dr. Ku was able to quickly diagnose what was going on and began treatment on the same day. I am already feeling much better and am so glad I found him and his team at W Plus Dental. Dr. Ku is very nice, professional and takes the time to listen and answer all of your questions. The office is really nice, his team are very helpful and friendly, and they also have an awesome therapy dog named Bali.

Samuel Shinnam P. from Arlington, VA (Source: Yelp)


For months, I have been having a gnawing sensation at a left top back tooth. I was hoping flossing would make it go away, but it didn’t. I went to my semi annual cleaning and checkup at my former dentist and the x-ray revealed that I needed at least a filling and maybe a root canal operation. My former dentist pushed me to get the root canal and gave me a quote of about $1000 out of pocket after insurance. I was convinced I would have to go through with this unexpected expense. Then a friend referred me to this office. I thought I would get a second opinion. Setting up an appointment was easy online. Reception was kind, professional, and friendly. Paperwork was not burdensome at all. Dr. Ku introduced himself, heard about my situation, and had x-rays taken. He said that a root canal might be necessary, but a simple filling might be sufficient. He did a couple quick tests (cold/hot sensitivity test) and interviewed me at length about when I feel pain. He concluded that a simple filling would be sufficient. This was a great relief as it would cost far less. Before I asked when I should set up the appointment, he asked if I wanted it done then and there. I said yes, and it was done. Pain is gone, tooth is fine. After insurance, I am now out of pocket only $105. If you’re dentist is pushing for an expensive operation, get a second opinion here. If you are fed up with slow receptionists and burdensome paperwork, come here. If you are looking for a new dentist in the area, come here. Highly recommend.

Christiana F. from Arlington, VA (Source: Yelp)


Incredible experience from start to finish. The staff is friendly and extremely knowledgeable. Their equipment is state of the art.  The service was quick and also very thorough. Dr. Ku is well educated and truly cares about his patients and their well being. This was by far one of the best dental experiences I’ve ever had.

Kathy K. from Marietta, GA (Source: Yelp)


I highly recommend Dr. Ku’s office. The interior design is clean and modern, and there was an easy check in process (computer). His assistants were always courteous and checking in with me every step of the way to see if I was comfortable. They have staff that speak English, Spanish, Korean, and Tagalog. On top of that, after Dr. Ku finished the cleaning and identified cavities, within a few minutes they prepared treatment plan ready for me with costs listed out. There was full transparency the entire time on costs with insurance. He was also very patient and answered all of my questions. Hidden gem in DC and conveniently located a block away from work. Their therapy dog, Bali, as well was so sweet!

B G. from Fort Lesley J. McNair, Washington, DC (Source: Yelp)


Dr. Ku and his staff are absolutely outstanding.  I am visiting Washington DC for 2 years and I feel fortunate the stars aligned for me to find Dr. Ku.  I had a couple of procedures done, one of which was a bridge replacement that resulted in a smile makeover.  Dr. Ku was so helpful throughout the process and I could not be happier with the results.  He is a perfectionist and very attentive to every detail.  I highly recommend Dr. Ku and if you go for a visit, you too will experience a very efficient yet caring practice that provides top quality service.

Erin F. from San Diego, CA (Source: Yelp)


This practice is an absolute DC gem. My husband and I were searching for a new dentist last summer after multiple disappointing customer service experiences with our previous dentist.  We were immediately impressed by Dr. Ku’s practice, including the tech-forward office (but not unnecessarily so), ease of making appointments, and fantastic staff and technicians.  Dr. Ku himself is simultaneously extremely personable yet impressive, with a bedside manner that immediately puts you at ease and instills confidence in his capabilities.  My husband and I have each seen Dr. Ku now for two cleanings and a minor dental procedure, and I cannot recommend Dr. Ku and his team highly enough.

Ray-Ray Lee (Source: Facebook)


I was looking for a new dentist in the DMV area and I couldn’t be happier I found W+ Plus Dental. The office is great with all the modern bells & whistles, and Dr. Ku and his staff are attentive, easy-going, friendly and super efficient. And I would be remiss to not mention Bali, who is the most adorable therapy dog I’ve ever seen!

Rebecca P. from Washington, DC (Source: Yelp)


It’s always daunting to find a great dentist in a new city after having the same dentist for years. While the office is brand new, Dr. Ku and his lovely assistants are incredibly knowledgeable, professional, and really deliver beyond just the basic needs of their patients. It also helps that Dr. Ku uses the latest technology in dentistry so everything he does is highly efficient. I had to get a root canal & crown on a tooth that needed some work done, but the procedure/process was a breeze (I even joked that I kept drifting off to sleep because I was so relaxed). All this to say, I’m glad my search for a dentist is over! And I’m actually looking forward to my next appointment for my routine checkup. PS – Dr. Ku brings his adorable toy poodle named Bali into the office as a therapy dog. Just sayin’

Julia Allcott (Source: Google)


Both Dr. Ku and Dr. Wolf are great dentists – efficient, but not rushed. Both dental hygienists I’ve had were thorough and respectful. The front desk staff is friendly and helpful (though everything runs pretty smoothly). The office is clean, well-lit, and professional. It’s helpful that the bike share is right outside as well.

Robb Schmidgall (Source: Google)


W Plus Dental is exceptional from the front desk to dental assistants, hygienists, to Dr. Ku. They are extremely professional, take advantage of the latest technology and practices, and only recommend what is necessary. The trust level with a dentist is one of the most important things, and I completely trust their diagnosis and recommendations. They are also very gentle and made me feel comfortable with what they were going to do, comfortable while they did, and provided excellent follow up care after. Integrity, care and excellence are all words I would use to describe this practice. I highly recommend W Plus Dental.

Ben G. from Monterey, CA (Source: Yelp)


By far the best experience I have had at a dentist. Dr. Ku and his staff were very friendly, but above all not dismissive and pushy. Every trip to the dentist as an adult for me has been filled with lectures, and aggressive upselling of procedures and products. That is not the case here at all. Light touch on the work, carefully explained every single step. I had to have 3 appointments over a 2 week period with 4 separate procedures. They were very accommodating and helpful. All new patient paperwork is done on a tablet when you check in and they gave me an exact breakout of all the costs before starting the procedures. These costs were also about 20% less than what I was quoted at other offices for the same work. If you are like me, and dread going to the dentist not just because of the discomfort but because of the aggressive nature of most modern medical offices then I highly recommend this practice.

Marissa S. from Newport Beach, CA (Source: Yelp)


Haven’t left a Yelp review in years but I had to today after my visit to W Plus! This is  my 3rd dentist in the DC area and by far the best. Mika (sorry if spelling is wrong) was SO gentle with my cleaning, which is a huge plus for me. I presented her and Dr. Ku with the recommended work from a previous dentist and they said it wasn’t necessary, which is what I suspected and why I left my previous dentist (they were trying to charge me $600+ for work it turns out I didn’t need!). Excellent experience and I’m already returning in a few days for a filling which (with my insurance) will only cost around $30. And their therapy dog is so cute!

Christiana Frazee (Source: Facebook)


Incredible experience from start to finish. The staff is friendly and extremely knowledgeable. Their equipment is state of the art. The service was quick and also very thorough. Dr. Ku is well educated and truly cares about his patients and their well being. This was by far one of the best dental experiences I’ve ever had.

Sueyeon S. from Washington, DC (Source: Yelp)


Dr. Ku is simply the most competent and kindest dentist I’ve ever seen. I usually don’t write reviews, but I felt as though Dr. Ku and his staff went out of their way to make sure I have the best possible experience while at a dental office. I’d say I am pretty careful in choosing my dentist and it took me a long time to find a new dentist after I moved to DC. I sought out numerous recs from friends and family. On the first day, I immediately noticed the excellent skills and professionalism. On top of that, the kind of personalized care I received was beyond my expectation. He answered all my questions carefully, completely from the patient’s perspective. I was provided well informed options and recommendations for treatments in both short and long terms. I’ve always been incredibly happy and confident with his care. I’m so grateful for Dr. Ku’s expertise and dedication to his work. There’s a reason they have the 5-star rating, and I cannot recommend him highly enough. My only worry is that the word might spread quickly and the office will get too crowded.

Colleen W. from Washington, DC (Source: Yelp)


Legitimately best dentist I’ve ever been to, hands down. Dr. Ku was extremely professional, knowledgeable, and flat out just a really nice person. He made me feel extremely comfortable, which was huge for me because I tend to really dread the dentist after some bad experiences. The receptionist and hygienist were also great, as well as super friendly, and welcoming. The entire experience was painless and professional, and the office is pristine and new. Every question I had was answered and explained, and they took the time to make sure I understood the breakdown of cost. Additionally, when educating me about products I could purchase from them, there was no pressure; it was entirely up to me if I wanted to move forward with a purchase or not. It’s always frustrating to go somewhere and have the team harass you into a decision you might not be ready to make yet. There was none of that with W Plus. I have already told a bunch of friends who need a good dentist in the area to go here and for once am not dreading my future dentist visits!

Melissa S. from Central LA, Los Angeles, CA (Source: Yelp)


I have been to Dr. Ku’s office twice, after seeing a different dentist upon moving to DC. Dr. Ku’s office is excellent. The X-rays and other equipment are updated technology, the office is very clean, easy to locate (near Soul Cycle on M Street), the staff is incredibly friendly, and most importantly, the dentist is thorough. When I asked him to explain why a procedure needs to be done, he took the time to explain and was very reasonable. I do appreciate that they now offer mouthwash and a dentist goodie bag at the end of my visit, too. Plus, their hours are great. I highly recommend this office!

Christine Y. from New York, NY (Source: Yelp)


i feel like i’ve levelled up in this game of adulting – scheduling my own dentist appointment was the final frontier. i’m not ashamed to admit that i put off scheduling a cleaning for a year and a half because the thought of finding my own dentist here in dc was overwhelming – and who ever really WANTS to go to the dentist? but my experience with Dr Ku was so easy and probably as pleasant as a dentist appointment could possibly be. the office is very clean and modern and they are very communicative.

Laura S. (Source: Zocdoc)


Since moving into the DMV area, I’ve been seen by Dr. Ku. I must say I’ve dealt with my fair share of dentists, and Dr. Ku has been great. He’s got excellent bedside manner and is very professional. After a bad experience at another dental office, Dr. Ku reassured me and agreed to take on my complicated case. Although I had painful procedures done, him and his staff ensured I was comfortable and safe throughout the entire time. Also, Helga at the front desk is kind, resourceful, and I enjoy going to the office because of her and Dr. Ku. They are very efficient, and seem to have the most up date technology in dentistry. I highly recommend him and his team!

Ryan H. from Washington, DC (Source: Yelp)


Dr. Ku is a wonderful professional. He did an amazing job with my two extractions. The procedure was clean, painless and Dr. Ku was attentive and respectful to my needs. My recovery time was by far the quickest I’ve ever had with regard to dental work!  The office space is very clean, and the staff have been clear and concise when it comes to communication, billing, and payment. Glad to have found Dr. Ku!

Yuko K. from Washington, DC (Source: Yelp)


I’ve just had my third molar implant done by Dr. Ku and feel like I can confidently write a review about his work and his office staff.  After being referred to Dr. Ku by another dentist I decided to check him out.  He and his staff have been fantastic.  He treats each appointment like it is his only one of the day and never fails to answer any questions I have about the procedure itself or aftercare.  I would strongly recommend Dr. Ku’s office for any dental procedures. 100%.

B S R (Source: Google)


Always have a great experience here with anything from basic cleanings to getting a crown fitted. Dr. Ku and his team are always up front about what work should be done and why, and they work with you to get it done in a way that works with your insurance and schedule. No surprises, always clear about the cost of services, and excellent dentistry. I went here for an emergency when a temporary crown fell off and Dr. Ku was so accommodating and helpful that I made it my permanent dental office and I’m very glad I did.

Rita A. from Washington, DC (Source: Yelp)


It’s always tricky to find a good dentist when you move. I went through a bunch of them before I reached W plus: everyone was nice; everything was clearly explained all throughout my appointment; my options were laid down in front of me and Ashley even made the effort to check with my insurance and go back and forth between us to make sure I got the best deal for me. Dr. John was very genuine, attentive and actually sat down with me for more than 5 minutes, unlike these big practices where you don’t get the same doctor twice i.e. the recipe for medical errors. For once, I was treated like a human being instead of a moneybag. I come from a warm and friendly culture and I don’t take that statement lightly. Otherwise, the clinic’s design is beautiful and relaxing, a nice cherry on top!

Brendan D. from Georgetown, Washington, DC (Source: Yelp)


Fantastic experience. Everything here is brand new, clean and modern. My retainer fitting was done with a fascinating electronic device that you can watch on a screen as opposed to the old fashioned mold.  The staff is very nice and there is even a small poodle that will sit on your lap. They are also much less expensive than most dentists. I researched dentists to replace a fitting and W+ was literally thousands of dollars cheaper than anyone I found in DC.

Xiaozhou Panero (Source: Facebook)


For everyone who lives in the DC area, go see doctor Ku at W+ if you ever need to see a dentist. He is the most honest and caring dentist you will find GUARANTEED! Last year, my husband and I bought a Groupon to have a regular check-up and teeth cleaning at Merrifield Smiles, but they wouldn’t redeem it unless we did unnecessary and ridiculously expensive works with them first. My quote was $1600 and my husband’s was $600 after in-network insurance coverage. We totally felt like we were being ripped off and left without using our Groupon. My husband went to see doctor Ku later instead and got everything he needed covered by the insurance. I will go see him after our trip is done for sure!

Sharon P. from Arlington, VA (Source: Google)


A+ for W+ Dr. Ku and his team is the best. I’ve made several visits to W Plus Dental over the last few months for different services (check ups, cleaning, wisdom tooth extraction, clear braces etc) and I can honestly say that I’ve never been let down. The entire process is seamless, from appointment set-up to treatment to follow up. Visit after visit, I feel cared for by the entire team and I can always trust them to provide the best personalized treatment/services for my needs. I’ve been to several dental offices over the 6+ years I lived in DC and I can confidently say that W Plus tops every one of them. The friendly team and their teamwork. Quality service. Modern equipment and clean office. Convenient location. Dr. Ku’s adorable dog, Bali. What’s not to love about W Plus? I’m so thankful for them and hope to return for many years to come.

Dhohyung K. from Boston, MA (Source: Yelp)


Dr. Ku is my dentist since when I lived in Boston, every visit was pleasant, great experiences. His brand-new DC office (W plus dental) has the state-of-art equipment as well as clean and comfortable space. Moreover, the hygienist and receptionist were great, and the dentist himself was very professional and friendly. Recently, I went in for a routine cleaning and aesthetic reasons (temporary veneers), and I could tell that he is very knowledgeable, he explained all different options and approaches to me before the procedure, and he recommended me the most cost-effective option. Also, he spent extra time to make my teeth cleaned and looked flawless. I highly recommend W plus dental by Dr. Ku for those who are looking for experienced, friendly dentist and staffs and clean, spacious dental office in DC area.


Dr. Tae Sung John Ku is a licensed dentist in District of Columbia and Virginia. At W Plus Dental, the doctor and his staff offer patients in the Washington, DC the highest quality of dental care possible. The dentist offers a variety of services utilizing digital dentistry, including dental implants, veneers, tooth extractions, dental cleanings, crowns, bridges, root canals, and dental fillings as part of his practice. Dr. Ku understands the importance of individual care and treats each patient according to their unique needs. The doctor is fluent in English and Korean. Spanish speaking staff is present. Dr. Ku received his doctorate from Tufts University School of Dental Medicine. He is also a graduate of the University of Notre Dame. He has experience in many areas of dentistry and has placed his focus on digital dentistry and dental implants. Dr. Ku is a member of ICOI, GDIA, and WAUPS, which are world renowned organizations for dental implants and surgeries. The doctor uses his extensive knowledge and training to offer his patients the highest standard of dental care possible. At W Plus Dental, the doctor and his staff take great pride in offering all of their patients warm, welcoming environment.