I have a dentist I like but I went to Dr. Jeffries for a smile update. Step one is done, whitening. Coming up in a few weeks are replacement crowns, and step three will be BioClear for some surrounding teeth. I know I'm in good hands. read more

First time patient earlier this month for a cleaning and I was really impressed with my experience. Thank you to the team for a friendly and professional cleaning. And thank you to the Dr. for paying close detail to the xrays and pointing to me my cavities. I was stunned to see the xrays and hear about my cavities. Nevertheless, it was a very positive interaction. The decision to proceed with the fillings did not feel rushed or ill-informed. Thank you Dr. for your patience and expertise. read more

Members of my family recommended Dr Jefferies and his dental practice in Herndon. I decided to give them a try and was very happy that I did. This is a highly professional office from dentists to hygenists to front desk staff. I was especially impressed by Dr Kim who managed my initial treatment. She was super efficient and thorough and carefully explained her observations and treatment options. Anyone considering switching dental practices should consider Dr Jefferies' office. Excellent all the way around! read more

I have been going to Dr. Jefferies for many years, and I would not go anyplace else. Dr. Jeffries is a great dentist who corrected some past dental work that wasn't done correctly. Staff is friendly and I have never had an issue with billing or knowing exactly what I was expected to pay. I take my daughter to Dr. Jeffries. He is so gentle and kind and my daughter never has any anxiety about going to the dentist. read more

Amazing service. Hygienist Michelle did such an amazing job and I truly never had such a memorable visit to the dentist as the one I had today. read more

I visited my dentist, Dr. Jefferies, yesterday for a crown placement following my implant. I've been seeing Dr. Jefferies for over 15 years, and he has always been extremely professional and kind. He is highly skilled, precise, and undoubtedly the best family dentist I've ever had. I consider myself very fortunate to have found and chosen Dr. Jefferies as my family dentist for all these years, and I strongly recommend him to anyone seeking a family dentist. read more

I just got back from my semi-annual teeth cleaning. I was thrilled with the results and ideas provided by the dental hygienist. I have been a patient here foe a number of years - couldn't imagine going anywhere else. From the basics to the impressive cosmetic options, this is the best place to go. All of the staff aer amazing! read more

I saw Dr Jeffries after I left a different dentist who told me I had 8 cavities, suspecting something was wrong I walked out before he could drill my. I went to Dr Jeffries who confirmed I had no cavities. Been seeing dr Jeffries for 15+years! Great doctor who takes time with his patients. You can trust him!!! read more

Loved my first visit to this office after moving to the area. Very clean but more importantly, very personable staff and a relaxed atmosphere. I also really appreciated not being sold on anything, just having an honest and upfront dentist that told me my options and his recommendations. Will definitely make this my local dentist!! read more

Dr. Jefferies and my hygienist Brooke are both very friendly and professional. A pleasure to deal with.

The dentist and the hygienist were both mediocre, but overall fine and relatively kind. I don't do well at the dentist and they weren't the most gentle, but they would be fine as a last resort. Full disclosure, I haven't been here in two years so maybe things have changed. My issue is with their billing. They're attempting to charge me for things from two years ago and using an itemized bill that doesn't match what my insurance has on file. Unless you want convoluted charges to haunt you, I would think twice about using this office. read more

Always great staff with great welcoming smiles and I have been coming to Dr. Jefferies for many, many years now and always satisfied. Very relaxed and very calming. Especially feel like they recommend what needs doing not trying to upsell you but just take care of the business at hand or suggest and warn you that you will need certain things down the road, so you are prepared. A favorite of mine. You can not go wrong. read more

I went to Dr. Jefferies for regular hygienist visit. As always the experience was great. I recommend Dr. Jefferies and his staff to anyone seeking an excellent dentist. read more

Dr. Jeffery was my dentist for a few years, very professional and gentleman. He is not doing extra procedures as the others do for money. no forcing to buy or doing any unnecessary procedures. Dr. Jefferies and his staff are fantastic. The office is very comfortable. Unfortunately, my insurance is not in network any longer and I have to find another doctor. It is so sad for me. The best doctor ever! read more

Always a great experience - friendly, efficient staff, and honest recommendations.

This was my first visit back since the pandemic and it was like putting on your most comfortable sweater on a cool winter morning! The staff is still as personable and professional as they were from the first day I met them! The office is equally as warm and inviting! I've said it before and I'll say it again, this is the best dental experience I've ever had! read more

One of the best dentists I've ever been to! Very knowledgeable and gentle. One never gets the feeling of being sold something i.e. restorative work (crowns,bridges etc.) Highly recommend!! read more

Dr. Jefferies and his dental staff are amazing. The first time my husband and I went in there, they greeted us by name and were able to see us within 30 seconds! They spent as long as they needed to get the job done, so no cutting corners. They did a fantastic job with explaining their policies and procedures, so you were never left guessing anything. I got six cavities filled and didn't feel a thing with any of them- even Novocaine shots in the gums/roof of my mouth. No more dreading the dentist!!! read more

Ahhhh!!! I have never met anyone that placed the dentist at the favorite places to visit but if you have one that is gentle and listens to their patients I highly recommend Dr. Jefferies and his stellar crew!! I was seeing a different dentist in the Reston Town area and started to feel uncomfortable there- physicians/dentists and caretakers should never talk negatively about other patients- it makes you think what do they say about you to other people!! I came to Yelp and searched and found this office!! Mary was my hygienist and I found her super professional, warm and caring!! Dr. Jefferies came in next and after meeting/talking for a bit he examined me. I've been in a couple times now and each staff member I've met- Kendra, Carrie, Yahn have been A+++ Dr. Jefferies is gentle, professional, quick and listens /hears his patients!! Can't go wrong coming here!! *All insurance accepted * Great Herndon location with private parking lot. * Great staff read more

After avoiding the dentist for several years and having a bad experience at a different dental office prior to visiting Dr. Jefferies, I was scared (to say the least) to visit the dentist again. Dr. Jefferies' practice came as a trusted recommendation from a coworker. On my first visit, the dental hygienist, Irene, went straight to work identifying problem areas and performing a deep cleaning. Seeing as I had been avoiding the dentist, this deep cleaning was to be expected. Irene kept me at ease the entire time - checking in with how I felt and giving me ample time to rest when I needed it. Dr. Jeffries followed up with an examination and gave recommendations on how I could improve my dental hygiene. I felt in good hands through the entire process. Dr. Jefferies' staff is great. Pricing for dental work is transparent. Scheduling is a painless and their e-mail/text appointment reminders are very helpful. Would definitely recommend his office for your dental needs. read more

I needed a new dentist to redo two recently placed fillings that were really sensitive to cold and sugar. I found this office by chance and am so happy I did. Dr Jefferies looked at my X-rays and showed me defects around the fillings likely causing my pain. He put in new fillings and showed me the fillings on a post procedure X-ray. The new fillings were placed flawlessly( I know since I am a doctor and work with X-rays all the time). My teeth have never felt better. Dr Jefferies is an excellent dentist and I look forward to scheduling all my dental needs with his office in the future. read more

Mark S. Jefferies, DMD - General Dentistry Near Me - Herndon, Virginia

Dr. Jefferies and his staff are fantastic. My first appointment with the team was very comfortable and professional.

Ive been going to Dr. Jefferies for years but through the years his service is going down. As much as i like Dr. Jefferies i cannot deal with his staff specially Jessica. There was a big turn around on staff - from hyginist to the receptionist. They did x-rays for regular exams in two sessions and the insurance came back not paying it. Even I did told the hyginist i just had an xray six 6 months ago and was assured it will be okey. I never cancel an appointment or not show up with appointment, back in June i was out of the country i came back in the US the day before my dental appoinment so i called in to cancel my appointment. I received a $65 bill for broken appointment . read more

Great experience with Dr jefferies. Known him for a long time. I have visited him for annual exam, crowning, sensitivity issues, receding gums, etc. What i liked here is Dr Jefferies always gives a very honest advice and never pushes to get a particular service. read more

Dr. Jefferies is the all-time BEST Dentist ever! Before meeting Dr. Jefferies-I hated Dentists! I had to be pre-medicated to calm my nerves before I would let anyone touch my mouth. Dr. Jefferies calmed my fears. He talked me through the process. His staff is excellent. Now I have NO FEARS when sitting in his chair. I no longer need to be medicated or knock-out to have a procedure done. I know he will not hurt me and he will explain everything. I had an emergency issue when I called his office; he told me to come right in. I have my entire family seeing him now. He is the best in Northern VA. I refer him to everyone now. Thank you Dr. Jefferies for restoring my faith in dentists! read more

He listened carefully to me describe the problem so he knew exactly what the issue was. After visits over a few months, he fixed the problem and now my bite feels great! Front office staff and dental technicians were all wonderful to work with. Dr. Jefferies has a great professional manner and really knows his stuff. Good communicator. read more

Been satisfied over the past few years for routine visits as well as one filling. Easy scheduling. I like that they switched from giving goodie bags to just brush heads (that's all that I need). read more

I have been to Dr. Jefferies 4 times - while I liked the doctor, the rest of the staff have made so many errors, I really cannot bring myself to go back. The first time the hygienist was on leave so I had a substitute who did my cleaning and periodontal measurements. When I went back after a week for a followup with the regular hygienist, she examined my gums and had to correct almost all of the measurements done the previous time! Also they did the X-rays for the regular exam in two sessions and my insurance came back and denied the claim saying only 1 is allowed each year. this after I specifically told them this during the session and they reassured me that it would be ok with the insurance. I had to go back and forth on the phone with the insurance and them before they sent another statement to the insurance and resolved this. The next visit, for a filling, I was told my copay would be $30 and my husbands for a similar filling would be $60. I told them it was the same insurance, and was told it depends on the type of filling etc. I went ahead with 3 fillings and then when the insurance was billed it turned out my copay was $60 each because they did not put in the specifics of the filling while obtaining the estimate. I specifically called the office to settle the bill when I got the statement from the insurance, they told me they had not heard from the insurance and would send me a bill when they did, I don't have a balance. I did not hear from them for 5 months and then I got a statement saying I have a 90 day overdue balance! It was just annoying to get this in the mail when I had specifically called in to pay and was told to wait for a bill & never got it for 5months. I had of course forgotten the details when I got the 90 day overdue bill and had to spend another hour going through all the past statements /payments to verify. (they had no details in their overdue bill). In all, every time I visit it seems like I need to spend another hour or more pondering over insurance statements/bills and rectify things. It was too much of a hassle, and I have decided to find another dentist. read more

Before I went to Dr.Jeffries I was so nervous to go to the dentist because of bad past experiences with other dentists and for that reason I spent most of my twenties completely avoiding the dentist, even for routine check-ups of fear of how bad my teeth are and what they would have to do to fix them. However, after looking at reviews, I decided to go. He made me feel very comfortable and I knew I was in good hands. His dental assistants did a great job doing a deep clean on my teeth and only found a couple cavities, which is not bad considering I spent such a long time dodging dentist offices. I told him the last time I got a fill my numbing shot wore off almost immediately and I went through the whole thing feeling all the pain, he reassured me this experience wouldn't be like that and he was right. He did it with professionalism and care. Needless to say I will never go to another dentists besides him. He's the best hands down. Lucky to have found him. read more

Great office, great dentist. I never wait, the staff is friendly, the hygienists are smiling, efficient and thorough, and Dr Jefferies does careful, gentle work! Our family of four have been going to his office for years, and have been very, very happy with his practice. Every dental procedure--whether he has performed the work or whether it was someone he recommended--oral surgery, orthodontics--we have had a great experience. We all have great smiles because of his team! read more

Dr. Jefferies and his staff are excellent. I had a very comfortable and good experience at his office. Dr. Jefferies and his staff were professional and very customer service oriented. I highly recommend his dentistry practice. read more

I have been going to Dr. Jefferies for a few years and I love him, I have sent many people to him. He is incredibly gentle and doesn't try to sell me unnecessary work. He's very careful when doing fillings and I never feel any pain during the procedure or feel sore afterward. Also he is extremely meticulous with getting fillings just perfect - I've had lots of fillings along my gum line or bite and he always makes it feel perfectly smooth and normal. The dentist is my biggest fear and I used to dread visits for weeks and let a couple of years go in between because I was too scared, but now I go every 6 months, which is probably helping me have less problems. His staff is also very friendly and professional and I've never had to wait a minute for an appointment or had problems getting one when I needed it, even immediately. I recommend Amber for cleanings. She definitely cleans your teeth thoroughly to the point that it hurts a bit, but not too much and your teeth feel remarkably clean afterward! read more

Talking about gentle dental, my experience with Dr. Jefferies was exactly that. I had my first cleaning with him and it was the least painful experience I had ever had, yet my teeth felt like porcelain by the time he was done. Dr. Jefferies and his staff are fabulous. They all knowledgeable, professional, thorough, friendly and patient. Dr. Jefferies takes his time with his patients, so I never felt rushed. He'll explain everything and encourages you to ask questions. He also explains everything that he does. He won't try to sell you a procedure that you don't need. He has integrity. I finally found a dentist that I trust with my teeth. I would highly recommend his office. read more

Dr. Jefferies and his office are wonderful. Long story short, I had to take my 5 year old son there for a filling that didn't go really well at 2 other dental office. Dr. Jefferies and his assistant was great. They both were very patient and worked really well with him. I was very happy and pleased with how well they were with him. Love this office and would highly recommend. They deserve 10 stars. read more

I am not one who generally enjoys going to the dentist, but I tried Dr. Jeffries as a new provider and could not be happier with my experience. It is evident he's very skilled at his profession, and he and his staff are all a joy to be around and very professional. He has a lot of the latest technologies to keep on top of gum and tooth health, which I appreciate seeing. I am glad I can finally say I'm now without stress and actually looking forward to keeping up on my future appointments. I highly recommend this provider for his skill, patience, gentle demeanor, and capable staff. read more