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Qualifications and Experience
Awards and Publications
Dr. Mongelos is all about the personal contact between the caregiver and the patient. He understands that personal touch, communication, and education are the key factors in developing a long lasting and trustworthy relationship with his patients. He will warmly welcome you and upon a comprehensive evaluation, will address each and everyone of your concerns with a detailed explanation of the why’s, what’s and how’s of your dental treatment. Dr. Mongelos graduated on top of his class in 1987 at the National University of Asuncion, Paraguay. He then graduated on top of his class again in 1993 at Howard University College of Dentistry after a two years Pediatric Dentistry Program. He has completed several extensive continuing education programs on Endodontics, Implant and Cosmetic Dentistry, Oral Surgery, and Prosthodontics. He has been serving the Washington Metropolitan Area since 1995. On a more personal note, Dr. Mongelos is an avid long distance runner and tennis player having completed several marathons in the last few years. He is a father of three vibrant and beautiful daughters.
Verified Patient Reviews
My experience with Dr. Mongelos was excellent. The dental examination and cleaning were performed very well. He answered all of my questions thoroughly and provided me with new dental hygiene insights. I highly recommend him.
Dr. Mongelos is my dentist for almost 20 years now! I highly recommend him as he is a highly trained professional, very thorough in his work, and provides detailed information on the work performed.
Dr. Mongelos was excellent. I walked him through my somewhat grim dental history and he didn't flinch. He talked me through everything he was going to do as he did it, walked me through my x-rays, and gave me some insight into my previous dental work and what to look out for in the future. Highly recommend! Will be going back there as long as I live here.
He's very informative and shows you your X-rays, which is helpful!
Dr. Mongelos, was an absolute gem. He took the time to talk with me so I could explain my dental history. Before he began the work he explained in full detail (including pictures) exactly what he was going to do. He made me feel relaxed and at ease. The professional demeanor showed by him and his staff was very refreshing. Thank you, Dr. Mongelos!
Always a pleasure to come here! Staff are nice and thorough.
It was great and professional. He knows what he's doing and his staff member was also excellent.
Great doctor. Very nice to my son
Wonderful! First dentist who truly explained things to me.
GREAT DOCTOR.. I RECOMMEND DR. GUSTAVO..HE IS GREAT
Took my three year old daughter to see him for a dental cleaning and he was great with her! He allowed her to help him during the process and explained everything he was doing in a kid friendly manner (he even made her laugh). His assistant was just as kind and inviting. We had no wait time when we arrived and we were in and out!
I always have a good experience at this office. They see me right away, are very kind & quick!
Great visit! Made me feel very comfortable and was very knowledgeable. I can tell he cared about the health of my teeth and not just money. I definitely will be returning.
My visit with Dr. Gustavo Mongelos was so wonderful - I would highly recommend him!
Great! Very professional and detailed.
Very professional and very knowledgable!
I think this is going to be my dentist of choice for the years ahead.
Dr. Mongelos was very friendly and professional. He did a deep and thorough cleaning on my teeth that I have never had done by any other dentist in years! He took his time and concentrated on cleaning each and every tooth from front to back, top to bottom, and in between...however, the process did not take long at all. He even gave me great advice due to me being 11 weeks pregnant! The office was very clean, kid friendly, his staff were all nice, and equipment was up to date. My teeth feel excellent and I can't wait to go back in six months! I've already scheduled my son to see Dr. Mongelos in one week!!
Dr. Mongelos was very gentle. I came to his office for an emergency and we discussed the possible options and went for the one that I wanted/needed. I would definitely recommend him.
They are great! No wait time, very professional. I'm going back!
Professional, personable, examines and explains everything that he does very well.
Amazing doctor. I will stay with him.
Loved the Dr, but was totally screwed over by the payment. They gave me false information and assured me that my appointment would be covered by my insurance provider (MetLife) and it was not. Received a hefty bill two months after my appointments. Maybe my fault for not checking with my insurance provider, but the Dr. was listed as covered on this site and they insisted in person, too. Pretty sure this has happened before, too, as the lady at the front desk remembered me months later, and had clearly had the same conversation many times before.
Dr. Mongelos was very attentive and thorough, and he explained everything he was doing with a great bedside manner. I appreciated the fact that he was both the dental hygienist and dentist, so he was able to provide a better diagnosis of the health of my teeth. Because I completed my paperwork online, there was no wait and I was able to see him right away.
Today's visit was very good. I appreciated Dr. Mongelos taking extra time with my son, too. We will be back!
Dr. Mongelos and his staff are very professional, kind and knowledgeable. Dr. Mongelos did the cleaning himself, made recommendations for teeth cleaning products, and made me feel at ease right away, which is very rare for a dentist visit. I'll definitely be returning on the regular.
Dr. Mongelos and his staff were incredibly helpful and friendly throughout the whole process. I called a day or two before my appointment to make sure my insurance was good to go, and the receptionist dealt directly with my insurance company to double check. The appt itself went very smoothly -- Dr. Mongelos did the whole thing and gave me helpful information about things I can do to improve my dental health without being pushy. He was also very funny! I highly recommend.
I went to see Dr. Mongelos to get a second opinion on a possible dental procedure. Dr. Mongelos was very thorough in his exam, in asking me questions to learn the context of my issues, and in explaining the conclusions he came to. He was also very realistic in prescribing what I should do going forward. I will be back.
Absolutely amazing dentist!! Such a friendly guy with a great staff. I was really surprised that Dr. Mongelos preformed the cleaning himself. Such a friendly and easy to find office---lots of on-street parking! I even got there a 1/2 hour early and they took me right away.
Office staff was both kind and professional and dr. Mongelos was gentle and put me at ease right away. He found problems my old dentist didn't see and fixed them. My whole family has changed from our old dentist to dr. Mengelos and I highly recommend him.
Look forward to returning!
Fantastic! Offered a much more thorough examination and explanation of things than my previous dentists. Took his time and is very friendly.
Usually I hate dentists, but this was great. The receptionist was very friendly and there was no wait. Dr. Mongelos did not just my exam, but the cleaning himself. He was very personable and didn't make me feel horrible and guilty for having cavities.
I was actually late for an appointment that was supposed to last longer for the time that I had originally scheduled. However, once I arrived, they made the necessary accommodations and were very helpful.
I had a dental emergency (broken tooth) so I decided to take a chance on him. My appointment was at 10 and I was seen at 10! First time that ever happened. I needed my tooth extracted and I knew that. I expected a consultation maybe a prescription and an appointment to get it pulled...nope he asked me what my schedule was and pulled the tooth out that same day! I have had problems with this tooth for years, not exaggerating, and made appointments to get it pulled only to have them cancelled. Dr. Mongelos pulled it out in an hour's time. He explained everything that was going to happen and made me feel extremely comfortable. His staff is excellent too! I think I found my new dentist!
This man is a gem. Patient, kind, informative, and funny!
Me siento muy a gusto con el Dr. Mongelos. Explica detalladamente es muy tranquilo y sumamente correcto en la atención. Me realizó una limpieza dental con mucha delicadeza, detenimiento y pulcritud, como nunca me habían realizado.
Hands down, the best dentist I have ever been to. He is meticulous, thorough, professional, and personable. He clearly cares deeply that your teeth are in the best shape they can be.
Dr. Mongelos was extremely friendly and understanding. He frequently checked in with me during the procedures and made sure that my pain was well-controlled. Highly recommended!
Dr. Mongelos is very personable. He actually did my cleaning rather than a tech. And he was gentle and very explanatory in his exam. I have to go back for a few procedures and I'm glad they'll be with Dr. Mongelos. Also, I was shocked when I initially scheduled my appointment -- I set something up within the week! I mentioned that I was having pain and sensitivity so his reception called me immediately when they had a cancellation so I could come in a day earlier. Very professional and friendly!
No ability to adequately price procedures or give a fair estimate prior.
I'm not normally a huge fan of the dentist, but this visit was easy, pain-free and everyone was extremely nice. I'll definitely be coming back.
The doctor was clear and had good bedside manner. I took my young son and he was friendly with him. However, the their is only 1 additional personal in the office that helps with appointments, keeps records, and works the front desk. I makes for a very long wait. My appointment was at 8am and I wasn't seen until 8:55am. I also called twice on my way to my appointment for advice on where to park and no one answered the phone.
He was incredibly personable as well as attentive. He explained my dental issues in depth showing me x-rays and also explaining the causes and treatment options available. He also recommended me to a colleague with whom he as a close, 20 year relationship, to address root-canal related issues and by the time I made a follow up appointment he had already sent my x-rays over to the endodontist. I've struggled to find good health practitioners since moving to DC, and I feel fortunate to have made my appointment with Dr. Mongelos.
He was very friendly, knowledgeable, and non-judgmental. I came in knowing that I needed serious reconstructive work, and left with a great understanding of my options.
My visit with Dr. Mongelos is always very satisfactory. Today, the procedure was painful but I am always satisfied with their service. He and his staff are always so pleasant.
Great Doctor, nothing to complain about.
Extremely helpful, explained all the details and made you feel comfortable with what he was doing.
Thorough cleaning, and explained the x-rays in-depth. I asked to have my x-rays emailed to me, and they did so immediately. Overall, very pleased.
Everyone was very nice. I had a tooth extraction done on Tuesday and everything went so well no pain at all, just a little tenderness in the area of the extraction. I followed the instructions given for the days following the tooth extraction, and I am feeling great.
A little rude. I'll be finding another dentist.
Professional, knowledgeable, patient, explains step by step. Excellent service the minute you walk in.
Very professional,friendlyand thorough.