Mark S. Jefferies, DMD, PLC 500 Grove Street, Herndon, VA 20170

"I have been seeing many dentist before living in this area for 25 years so-called five stars rated,,they were terrible!!! so I moved around searching for Dentist to the dentist. I found this dentist two years ago Dr. Jeffries the one of the best dentist I’ve ever been to. He’s the best I have to say he’s six stars or more Also very kind caring! Even hygienist are very very good. She was awesome. I want to see her yesterday for the first time. She was a very good at what she was doing. Unfortunately, I forgot her name. Bottom line is I am most definitely recommending Dr. Jeffrey with all my heart. Please trust me. I hope this helps…….."

"Love Dr Jefferies. Me and my family have been going to him for almost 20 years and wouldn’t switch. Have sent many a happy customer to him over the years."

"Came to Dr. Jeffries as a new patient with a number of significant dental issues. He proved to be one of the best dentists I have ever been to. Honest, highly skilled, meticulous, friendly, with excellent people skills. Insurance coverage was made easy and the office staff reflected this same friendly professionalism."

"Dr. Jefferies is very professional, meticulous, caring, honest and friendly!! I have been going to his office for the past 13 years and continuing to go there. Staff is professional, friendly and on top of all the appointments, billings and the insurance stuff.. no headache with them at all. Certainly Recommend Dr. Mark Jeffries and his office."

"Dr. Jeffries has been our dentist for 15+ years. He is the best dentist we’ve had. He went out of his way to make things right even though he didn’t have to. I should say that he corrected a mistake made by another doctor that I went to. He is gentle, kind, and caring. He has a great team of people working with him. We love Dr. Jeffries and are grateful that he is our dentist."