Bayou City Smiles
Marcus de Guzman, DMD:
Practice Profile Page


Bayou City Smiles
Marcus de Guzman, DMD
Houston, TX













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: 7:30 am to 3:30 pm

Tuesday: 7:30 am to 3:30 pm

Wednesday: 7:30 am to 3:30 pm

Thursday: 7:30 am to 3:30 pm

Friday: 7:30 am to 11:30 pm

Saturday: Closed

Sunday: Closed





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

Ken C. from Houston, TX (Source: Yelp)


Dear Bayou City Smiles Thank you for helping OutReach United (an all volunteer group) support charity by donating 1 hour of laser whitening to their silent auction program. As the lucky recipient, I thoroughly enjoyed my visit with you. I was welcomed into your beautiful office and quickly registered. I was promptly escorted back for my treatment by a most helpful and informative hygienist. She explained every procedure in advance and I felt 100% at ease. In fact, the music & office atmosphere were so calming that I feel asleep twice only to wake myself by my own snore. Honestly – I do not believe that I have ever fallen asleep at a dentist office in my life. After my treatment, we compared the before and after color. A shocking difference. Before leaving the chair, I was given advice on how to maintain my new pearly whites. Thank you again for the experience and your generous support of local charity.

Billie Parker (Source: Google)


Not only was everyone there exceptionally kind, they were very safe and secure. Honestly, they have better Covid safety measures than anywhere I’ve been. I had a canker sore cauterized, which was so painful but they made the process as enjoyable as they could and I appreciated it. Hope to make them my regular dentist!

Dani M. from Houston, TX (Source: Yelp)


To Honest R: You are the only one that wrote a bad review for Bayou City Smiles. Dr DeGuzman is the best dentist in Houston. He deserves a vacation as Im sure that you take a vacation during your work year also. How rude to assume that he should be there for your beck and call. I broke a tooth during Christmas one year and guess what he is so good that I waited to get it fixed until he returned. He is awesome at what he does and he doesnt deserve people like you. Maybe you should go to one of those fly by the night dentist. I have been seeing him for almost four years now. He has removed all four of my wisdom teeth, two root canals and three cavaties. He has been nothing but nice and helpful. He even calls me the next day to make sure everything is okay. His dental hygentist are the best. I have seen two of them and they are always helping me to want to do better in my teeth care. I have learned so much from them. The office staff both Amanda and Justin are sooooo nice. I love talking them. They are always so helpful when my HSA account are butts about the receipts that I submit to them. I think you should give someone a little leeway about a vacation.

Jim G. from Austin, TX (Source: Yelp)


Best dental trip I can remember, maybe ever. The entire staff was completely friendly and very focused on patient service. Being new to Houston, I decided to visit Dr. de Guzman based on the other positive reviews I’d read on this site. They were all true. Chriszelda did my cleaning and after my first visit it feels like I’ve known her for years. We laughed a good bit, but she also was extremely knowledgeable and able to make helpful recommendations on every question I posed. Dr. de Guzman struck me as an incredibly skilled dentist who also made sure I was comfortable at every turn. I’d give Bayou City 6 stars if I could.

Clare Wilmore (Source: Google)


Highly recommend! All of the employees here are very kind and helpful. The office is located in a great area and the inside decor has a great look. Very clean! Dr. Marcus de Guzman is wonderful – definitely the best dentist I’ve been to. He really takes the time to explain if you have any questions or concerns. He’s patient, kind and professional. Kate is lovely – she’s got great bedside manner and is just a super friendly person

Jessie L. from Houston, TX (Source: Yelp)


Update to my continued dental visits with Dr. Guzman. He is just the greatest dentist ever. Their whole staff is extremely nice and welcoming. I have my routine check ups here and the hygienists always do a great job, are super efficient, and friendly. Tuesday, I had scheduled a longer visit to have 3 cavities and 3 gum line grooves fixed (essentially three fillings). These cavities that Dr. Guzman worked on weren’t just normal cavities, they were ones that formed beneath existing fillings. Dr. G had to drill out the existing filling and had discovered some deep cavities beneath them…. sad day! Basically the procedures were complicated and lengthy but Dr. G performed them perfectly. He showed me the before pictures, decay beneath pictures, and the new fixed work pictures. I was so impressed with his work.. it was way above and beyond the amazing work I typically expect from him. Yesterday after the procedures, I go home to rest up and I get a freaking call from him today asking how I’m feeling. I wasn’t expecting that either and am so happy he took the time to call me to check up on me. I feel so special :). Definitely go to Dr. Guzman at Bayou City Smiles for some exceptional dental work and service!

Doug R. from Rice Military, Houston, TX (Source: Yelp)


I was deathly afraid of Dentist offices, but needed to be seen. I selected this office based on lots of word of mouth recommendations. Then when I saw over 100 yelp reviews giving them a 5-star rating, I knew I couldn’t go wrong. They are extremely welcoming and friendly from the minute you walk in the door. Jennifer was very gentle checking and x-raying my teeth. Dr. Marcus de Guzman was very kind, gentle and concerned about my comfort. I ended up having a dental emergency and they worked me in. The best part is that I didn’t feel any discomfort or pain.  This is the best Dentist office I have ever been to. And, I’m glad the Dentist is younger than me. He will be my Dentist for life!

Kristen Orion (Source: Google)


I have been coming to Bayou City Smiles for the better part of almost 10 years. I had not had regular dental care before that for almost 20 years. I was ashamed and afraid to go to the dentist after all that time. I am SO glad a colleague encouraged me to see Dr DeGuzman and his incredible hygienists! No shame, total support, incredible care! Very clear about what needed to be done, why, when, any options, and how much insurance will cover etc. Always warm and positive, and really excellent care. I have referred many friends who are now regulars too. My mouth has been totally rehabilitated – and this makes me feel both healthy and really good about myself. I have years of experience to say: I cannot imagine a better dental experience. I am so blessed to have found Bayou City Smiles.

Katie Trujillo (Source: Google)


Went in today thinking that I was not going to be able to get my deep cleaning all done today but they made sure I was go to go! Chriszelda was absolutley amazing the whole entire time (x-rays, and deep cleaning)! She kept me calm (dentist visit was freaking me out, also why I hadn’t been in forever) and she also made sure to let me know everything she was doing or about to do. Absolutely amazing office with a phenomenal team. Really glad I made the decision in setting up an appointment here!

Carl P. from Houston, TX (Source: Yelp)


Been getting cleanings here for 5 years now. Fantastic staff and service everytime. Love the location in the inner loop. Never had to wait longer than 5 minutes for my appointments. Lots of cleanings. Had a few cavities filled. They noticed I was grinding and had a mouth piece made that I wear at night. It doubles as a retainer which is nice. Given good tips and advice. They even clean my retainers. Love the new automated text messages the week of the appointment as a reminder. I would highly recommend.

Steve K. from Houston, TX (Source: Yelp)


I was in the need for a dentist pretty much immediately. I called Bayou City Smiles, told them my urgency of being seen, and they made an opening for me the next day even though I wasn’t a client. Once I got there they were extremely professional, attentive to my needs, let me know what was happening all along the way. Dr. Guzman staff were a pleasure.  I highly recommend

Max Z (Source: Google)


Chrizelda is a wonderful and funny dental hygienist! Dr. DeGuzman and I were talking during one of my appointments and we realized I’ve been one of his patients for the past 20+ yrs. He’s super knowledgeable and always addresses my questions and concerns with expertise and a smile!

Drew H. from Tomball, TX (Source: Yelp)


I just had my second visit yesterday at Bayou City Smiles and could not be more pleased with my experience. I rarely visited my prior dentist as the experience was never enjoyable. They have appointments as early as 7 a.m. which helps limit time away from work and received me promptly at my appointment time. The dentist and hygienist I saw both times were extremely friendly and comfortable to be around. The office is very clean with what appears to be the latest technology. I would strongly recommend this dentistry to my family and friends.

Theo T. from Houston, TX (Source: Yelp)


I’m in my 4th or 5th year here, I don’t really know.  That’s the kind of place it is. You become like family. From when you walk in, it’s “hey Sally!” to “Sally, what are you up to, how are the kids, did you get that promotion?”, kind of place. You know, the place you can feel comfortable and still get a low blood pressure reading; AT THE DENTIST!  You will never regret it and Dr. De Guzman is the best. #cantaddafistbumpemoji

Rachael H. from Columbus, OH (Source: Yelp)


PLEASE READ THIS REVIEW IF YOU HAVE A FEAR OF THE DENTIST OR HAVE HAD WORK DONE IN THE PAST! Everyone has something they are deathly afraid of…..that just the thought of it puts a hard lump in your throat and makes you sweat. For me it is the DENTIST. Growing up lower-middle class we had everything we needed but of course were not paying top dollar to go to the absolute best dentists. Combine that with soft teeth prone to cavities and needless to say I’ve had a ton of work for my young age – some of which has failed or not been done top notch. I found Bayou City because they do sedation dentistry and have a good track record for those who are fearful. During my 1 and 1/2 hour first meeting and consultation she completely listened to me and was compassionate when I cried out of anxiety and fear. I cannot tell you what this does for me after silently suffering with repeated shotty dental work over the last 8 years. They make all of their own crowns in house and have their owns specialists right at the office. No more being shuttled to other offices or getting temporary fillings and crowns. Although it is going to cost me an arm and a leg to get all the work I want / need done I will have some peace with the dentist once and for all and I can’t tell you how important it was for me to find Bayou city.

Diana S. from Houston, TX (Source: Yelp)


Love Bayou City Smiles! I’ve been going since they were on Washington, and I absolutely love the staff and Dr Guzman. I have always been seen promptly at my appointment time. Chriszelda has been my hygienist for years, and she’s always so friendly and efficient. She remembers specific things about me, like trips I’m taking, and asks about them the next time I’m in the office. The office is clean and modern without being cold. Going to the dentist is more of a chore than anything else, but Bayou City makes it an enjoyable experience. Highly recommend!

Nicole G. from Houston, TX (Source: Yelp)


I’ve been going to Bayou City for a few years, and I really like their new setup over in Sawyer Yards. It’s everything I want from a dentist office: great hygienists and lots of parking, on-time appointments, beautiful and modern waiting room, and a very friendly office manager and front desk staff. Chelsea is my hygienist and really makes me feel comfortable (literally, she gets me shades and hooks me up with lip balm because I have such horribly dry lips). It can take awhile (say, a couple of weeks) to get an appointment if you have a preferred hygienist, especially because some people tend to book their next appointment at the end of another. If you are willing to see anybody, it isn’t much of an issue. I’ve seen both Dr. Guzman and Dr. Corral – both are great. I appreciate that Dr. Corral will spend a few minutes to answer any questions I have, and she explains things in a manner that’s suited to my level of health literacy.

Daniel Long (Source: Google)


I have been a patient of Bayou City Smiles since their beginning. As this practice has evolved so has their attention to customer care and dental best practices. They really care about educating you on procedures and options available, along with what to expect before any work is started. It’s a good feeling when you get a follow-up call from the Dentist himself after you’ve had dental work done.

Dierdre Lehman (Source: Google)


My husband and I have been going to BCS for a few years now and we’ve been to a lot of dentists over the years, and BCS is the best so far. My husband has had two crowns made IN OFFICE while he underwent a root-canal, allowing him to complete the whole process in ONE visit. They always provide exceptional service and care and are happy to discuss and address everything from minor cosmetic dentistry to root canals. All of the hygienists are nice and professional and Dr. Guzman and Dr. Corral are top notch. Finally, and most importantly, the offices, exam areas and equipment are all very clean and the chairs are super comfortable. Highly recommend using them!

Margot S. from Houston, TX (Source: Yelp)


I am the type of person that hates the dentist, but even I can’t hate going to Bayou City Smiles. I’ve had appointments with both Dr. De Guzman and Dr. Corral and have had great experiences with both of them. There are so many small touches that make Bayou City Smiles pleasant in my opinion. The first is the early morning appointments. For someone with a commute, the ability to get in to the dentist at 7 am, then drive to work and be only a bit late is so helpful. I also love that if you’re going to be in a chair for awhile they will give you a blanket. I’m always freezing in the Houston A/C, so I really appreciate that! They also put cocoa butter on my lips when I was having some work done, which really made a huge difference in how my mouth/face felt afterward (especially as someone with a very small mouth). The offices are cute, clean, and easy to access. The staff have all been very friendly and helpful when I’ve visited. I have nothing but good things to say about Bayou City Smiles! I have been working with Dr. De Guzman to get whitening done and veneers put on prior to my wedding…while also undergoing Invisalign treatment with a different orthodontist. He has been so accommodating and has worked really well with my ortho, which has made the complex process of getting everything done in a very short timeline doable! I’m so lucky to have found such a great team.

Kate S. from Houston, TX (Source: Yelp)


My husband and I are relatively new to the area, and so I chose Bayou City Smiles based on the great reviews and convenient location. We just had our routine cleanings/x-rays done by Dr Guzman and his hygienist,  Chriszelda, and it was a great experience!  The entire staff was personable and thorough, especially Chriszelda, who was super friendly and took the time to explain everything and offer tips, but didn’t try to sell us on lots of unnecessary procedures like we’ve had other dentists’ offices do.  Overall, it was a very pleasant experience!  No pain, no wait, and friendly, caring staff.  Plus, their location is so convenient, right above Zoe’s on Washington!  I’d definitely recommend them!

Mark B. from Houston, TX (Source: Yelp)


I was not happy with my current dentist and decided to give them a try. Best move I made in a long time. Everyone there is very friendly and professional. The office is clean and well organized. All the hardware and software are top notch and up to date. I am very happy with my move and I am moving forward with procedures I have been behind on for a while. The Dr. is friendly, dedicated and takes pride in his work. His commitment to making the experience as best as possible is equally upheld by the other staff. I have nothing but great things to say about the whole experience. I am telling everyone I know, I found a new great dentist.

Jon Rosas (Source: Google)


First tooth extraction. I was scared but Marcus explained the procedure step by step and I was amazed & suprised. The next day I woke up with NO PAIN. WOW If you are looking for a dentist in the Houston area I strongly suggest you try Bayou City Smiles. The staff is friendly and all the dentist are highly skilled. They really help you to put your mind at ease and that’s helpful if you are a big chicken about going to the dentist like me.

Walter Thomas (Source: Google)


I’ve been a patient of Bayou City Smiles and Dr. Guzman since May of 2010 and couldn’t see myself going anyplace else. Nine years later they aren’t just my dentist, they are truly family with every bi-annual appointment becoming an exciting reunion to catching up. The staff has grown and others have moved on over the years; however, the kind, friendly, and professional atmosphere have remained consistent. The staff and the Dr. have been-instrumental in ensuring I reach my oral health goals either through referrals or treatment plans. Speaking of referrals, Dr. Guzman himself has gone the extra mile to ensure as his patient; I receive the same level of friendliness and professionalism I would expect from his own office

Nancy L. from Houston, TX (Source: Yelp)


I have been through tons of bad dentists and dental places. This place is the best place I have been. The office is nice and everyone is very nice and friendly. What stood out the most is that everyone working on your teeth genuinely makes you feel comfortable. Dr. Guzman and Chriszelda are great. Chriszelda has tips and tricks that helps to not have any pain while she cleans your teeth and does everything possible to make sure you’re okay. Dr. Guzman is also really nice and even called me the next day to make sure everything was okay. They explain every x-ray and educates everything about your teeth. There’s so much positive things about this place, but it really comes down to the people who make this place stand out. I’ll recommend this to anyone. Only bad part is they just informed me that they no longer take Delta Dental :/

Iman Y. from Cypress, TX (Source: Yelp)


I was there as a new patient on 2/5/2019 and I really enjoyed my experience there. I’ve been looking for a new dentist since about 6 months ago. What I really liked about this office is how effective, thorough and approachable the staffs are. My dental hygienist was Kate and she was wonderful. Not only she was gentle but she was also very skillful. Dr. De Guzman gave me the dental exam and he was very professional and thorough. Since I opt for more cleaning every 3 months, it matters to me how the pricing is as well. Their prices are very reasonable. I’d highly recommend this place. It will change your perspective about going to see a dentist!

Brian H. from Houston, TX (Source: Yelp)


I have been trusting Bayou City Smiles with my dental care, since I moved to Houston in 2010. I refuse to go anywhere else. They serve me with professionalism and superior quality dental services. Dr. De Guzman and his staff consistently exceed my expectations. I recommend their services to all my friends and loved ones. I have read some of the negative reviews, and these have to be taken with a grain of salt. Some customers will never be happy. They have zero medical training, unrealistic expectations, and they live in a bubble that prevents them from understanding anything beyond their own misperceptions. This is a wonderful dental practice, and they are extremely focused on customer satisfaction.

R Z. from Houston, TX (Source: Yelp)


If you have a fear of dentist this is the place for you!! Everyone that works here is pleasant and kind. The dentist are very good at explaining to you what they will be doing and making sure you’re comfortable during your procedures. The front desk always explain what your cost will be and alway seem happy to see you. I have been coming here for years and still see the same employees I saw the first time I came!! That says a lot about the type of people that work here. Happy employees happy patients.

Jennifer Sok  (Source: Google)


I’ve been coming for years and both doctors provide excellent care as well as all the staff!!! They’re also so friendly with my children which means so much to me. I get cleanings done with my two year old on my lap and the whole office just provides such a loving and relaxing atmosphere. My 6 year old also got his filling done here and Dr. DeGuzman is excellent and communicative with him!

Tamara Juden (Source: Google)


Bayou City Smiles always exceeds my expectations! When I had to change my appointment due to car issues they were incredibly accommodating and kind, adding me to a wait list for times and days that worked for me. And when I arrived they were exceedingly patient with me as I hadn’t updated my insurance information. The entire staff is always professional, helpful, and kind. I absolutely recommend Bayou City Smiles!

Jae C. from Houston, TX (Source: Yelp)


THIS PLACE HAS MADE ME FALL IN LOVE WITH DENTISTRY. As someone who avoided going to the dentist for almost 5 years, I never thought I’d find myself in such a comfortable and inviting environment to get some cavities filled! Last time they gave me a blanket and I literally fell asleep as they carefully worked on my teeth. Doctor Corral always explains every procedure thoroughly and never proceeds without full assurance from me and I really appreciate that, not to mention that the entire staff also shares this same quality of service. I am very lucky that they accept my insurance because this place really goes above and beyond. No surprise fees, every invoice and receipt is meticulously detailed so you know exactly what you’re paying for. I seriously look forward to my next visit.

Tony T. from Houston, TX (Source: Yelp)


I’ve always dreaded going to the dentist and have not been in about 6 years. I found this to have the highest reviews on Yelp, and I had to experience it for myself. All of the reviews are legit! They are so friendly, understanding, professional, and knowledgeable here. I truly felt comfortable from my very first appointment, and I’m looking forward to my next one. Dr. De Guzman and every single dental hygienist are keepers in my book! I highly, highly recommend this place for your dental needs.

Blake E. from Houston, TX (Source: Yelp)


I had my teeth cleaned here today, and it is the best experience I have had at a dentist’s office. The staff is professional, the quality of care is incredibly high, and the service is great. They do not overcharge you for anything, and they explain very clearly what you need to be at top dental health. I also love the location and the building. Dr. Marcus de Guzman is the best, and Kate (who did my cleaning) is awesome. I will be back every six months!

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


Hands down the best dentist I have ever been to! Timeliness You will not be sitting in the waiting room, rotting away. They have computers so you can quickly complete their health assessment forms. They see you promptly, expertly provide your service, and check you out in a professional fashion. My cleaning took 20 minutes door to door. Talent Dr. Guzman is amazing. Patient and professional- he explains everything he will do before he does it. He is very thorough. I frankly had no idea that my front tooth was even chipped but he highlighted to me the chipped and weakened areas of my front tooth that could chip to an even worse degree over time. He is a talented- I got a filling to my front tooth today. Once he was finished, I was so happy I got it done! The man is gifted. I did not feel any pain or discomfort. Thank you fellow Yelpers! Overall I actually enjoy going to the dentist- correction- THIS dentist. Everyone from the front desk to the hygenists to the dentist has been fabulous. I would recommend one and all come here. You will not regret it. It is worth your time!

Christina B. from Houston, TX (Source: Yelp)


4 years later, and I still love bayou city smiles! I came in a day early (oops) to my biyearly cleaning. The whole office worked together to squeeze me in, since I wouldn’t be able to come on my actual appointment day. No one ever made me feel bad for this mistake and I am still amazed at how accommodating and kind they all were. Also, my teeth seriously look professionally whitened after Criszelda cleans them. All those wine and coffee stains are gone! They are, without a doubt, the best dental practice in Houston. I never thought I could like going to the dentist, but I actually love going for my twice a year cleaning and wish insurance would cover for me to go more often! You’ll have to wait a while if you dont make an appointment far in advance, so schedule now, even if you don’t need a cleaning for a few more months.