I’ve always been afraid of going to the dentist, but my experience here completely changed that. Dr John is incredibly professional, calm, and gentle. He takes his time to do high-quality work and never pushes for unnecessary treatments or extra costs. He’s very fair and uses all his skills and expertise to make sure the results are the best they can be.
His receptionist Marta, is also such a kind and lovely person. One time when I was really scared, she came over and held my hand — it meant so much to me. She’s always warm and welcoming to patients and makes the whole environment feel more comforting.
I highly recommend this dental office, especially if you’re someone who gets nervous about dental visits like I do.
N T
-
February 11, 2021
I've been coming to Dr. Sullivan for years. There are many good dentists but very few that could compare to his expertise. There isn't a specialist around that will be your advocate and work harder for you to give you the best treatment and smile than Dr. Sullivan. I've attached the sheer number of continued learning and accreditation's that he has amassed over the recent years.
Laura Ruddy
-
October 03, 2025
I have been going to him since he was in Glendale Heights next to John's donuts . I think its been about 40 years or so . My son's and husband go to Dr Sullivan to . We really like him he really care for his patients his staff is nice as well especially his son that worked there for a while .
Thank you Dr Sullivan.
Laura R.
Kendra Ballardini
-
September 20, 2021
I have been going to Dr. Sullivan for my whole life even since we have moved further away from the office. The reason is I always experience exceptional care from everyone in the office, and of course excellent dental care. My husband goes here as well now and has had such a great experience than with his former dentists. I can’t recommend them enough.
Ryan Sims
-
March 27, 2017
Dr. Sullivan is truly a great dentist! He does excellent work and he is very down to earth and personable. He has performed extensive work for me, both on the general dentistry side and orthodontics. He is very patient and takes time to answer any and all questions with regards to your treatment. His staff is also friendly and personable and they always conduct themselves with the utmost professionalism. I have been a patient of Dr. Sullivan's for many years now and I can honestly say that a.) he and his staff are like extended family to me and b.) never before in my life have I ever actually enjoyed going to the dentist! I strongly recommend his service to anybody that is in need of a great dentist.
Our Address
511 Thornhill Dr, Carol Stream, IL 60188, USA
Claim Listing: John E Sullivan, DDS
Please Login or Register an Account to Claim Listing
I’ve always been afraid of going to the dentist, but my experience here completely changed that. Dr John is incredibly professional, calm, and gentle. He takes his time to do high-quality work and never pushes for unnecessary treatments or extra costs. He’s very fair and uses all his skills and expertise to make sure the results are the best they can be. His receptionist Marta, is also such a kind and lovely person. One time when I was really scared, she came over and held my hand — it meant so much to me. She’s always warm and welcoming to patients and makes the whole environment feel more comforting. I highly recommend this dental office, especially if you’re someone who gets nervous about dental visits like I do.
I've been coming to Dr. Sullivan for years. There are many good dentists but very few that could compare to his expertise. There isn't a specialist around that will be your advocate and work harder for you to give you the best treatment and smile than Dr. Sullivan. I've attached the sheer number of continued learning and accreditation's that he has amassed over the recent years.
I have been going to him since he was in Glendale Heights next to John's donuts . I think its been about 40 years or so . My son's and husband go to Dr Sullivan to . We really like him he really care for his patients his staff is nice as well especially his son that worked there for a while . Thank you Dr Sullivan. Laura R.
I have been going to Dr. Sullivan for my whole life even since we have moved further away from the office. The reason is I always experience exceptional care from everyone in the office, and of course excellent dental care. My husband goes here as well now and has had such a great experience than with his former dentists. I can’t recommend them enough.
Dr. Sullivan is truly a great dentist! He does excellent work and he is very down to earth and personable. He has performed extensive work for me, both on the general dentistry side and orthodontics. He is very patient and takes time to answer any and all questions with regards to your treatment. His staff is also friendly and personable and they always conduct themselves with the utmost professionalism. I have been a patient of Dr. Sullivan's for many years now and I can honestly say that a.) he and his staff are like extended family to me and b.) never before in my life have I ever actually enjoyed going to the dentist! I strongly recommend his service to anybody that is in need of a great dentist.