Donald C. Thiel Jr. D.M.D., PA
Dr. Donald C. Thiel Jr., D.M.D., offers over three decades of dedicated and personalized dental care to families in Lawrenceville, New Jersey. Located at 3100 Princeton Pike, his practice is built on a foundation of preventive dentistry and predictable, evidence-based treatments. Dr. Thiel is committed to taking the time to thoroughly explain every procedure and available option, ensuring that patients feel fully informed and comfortable with their care plan.
The office provides a warm, compassionate, and relaxed environment for patients of all ages. Services include comprehensive general and cosmetic dentistry, covering everything from routine teeth cleaning, fillings, and dental crowns to bridges and dentures. The team is dedicated to excellence, offering gentle care tailored to individual needs, along with complimentary Wi-Fi for those waiting or working. As an in-network provider for Delta Dental, the practice makes insurance management easy, filing most claims as a courtesy.
Whether you need emergency care or are looking to enhance your smile cosmetically, Dr. Thiel and his team are here to support your family’s total oral health. Experience exceptional results through a patient-first approach that prioritizes your comfort and confidence.
Opening hours
- sunday: (closed)
- monday: 12h-18h
- tuesday: 9h-18h
- wednesday: 11h-19h
- thursday: 9h-17h
- friday: (closed)
- saturday: (closed)
Photos of Donald C. Thiel Jr. D.M.D., PA
Donald C. Thiel Jr. D.M.D., PA: Reviews
Reviews are the opinions of their authors. We do not verify that the author was a customer.
Reviews on Google
5,0 out of 5 from 296 reviews
Fantastic experience: Doc Thiel is a true pro -- thoughtful, patient, and experienced. Peggy (Mrs. Thiel), Susan (the hygenist) and the other folks in his office are wonderful, friendly people. Dental care, in my opinion, doesn't get any better.
Thank you for your kind words and taking the time to share your experience. Much appreciated !
Fantastic experience: We LOVE going for dental care! Dr Thiel’s dental practice is the best of all the many we have gone to over the decades. The culture of the practice is thoughtful and sensible so that one feels secure and comfortable. There’s a high level of competence and extraordinary creativity in solving challenging dental issues. It's a family practice where one feels they are part of the family!
Fantastic experience: One of my inlays fell out and he had it back in painlessly in no time. This has been a happy place for me to care for my teeth.
Fantastic experience: Best dentist office I’ve ever been tooo!!!!
Fantastic experience: Don Thiel has been my dentist for just about 40 years . Donald C. Thiel, as well as his wife Peggy are family to me . I couldn't recommend a more professional, kind , amazing dentist in the area. I'm blessed to have him as my dentist as well as my family.
Fantastic experience: Thorough cleaning, exam and treatment plan discussion.
Fantastic experience: Everyone is very professional and care about their patients.
Fantastic experience: Dr. Thiel and his whole staff were very welcoming. I came in to get a second opinion about some future dental work and he spent a great deal of time explaining to me the pros and cons of my possible choices so that I would be able to make the best possible decision. I am now planning to continue with him as my primary dentist!
Fantastic experience: They are the friendliest, kindest, caring, adept team! Besides that... I called because last minute I had to be a half hour late but amazingly everybody was so understandingly kind AND graciously received me late... And doing.... as always... an excellent job.
Fantastic experience: Susan the dental hygienist is excellent and the entire staff professional and friendly. Don, Peggy and all their staff make a great team! I have been going to this practice for years and always have a good experience! Thank you for all you do!
Fantastic experience: Dr. Thiel is very competent and responsive, always there if you need anything. An all around great dentist!
Fantastic experience: Fast Appointment... .. friendly staff .. super clean office
Thank you Barb ! Its always good to see you and the family, & glad that you had a good experience in the office.
Fantastic experience: Lots of personal attention, expertise and friendliness!
Fantastic experience: I have gone to Dr. Thiel for years and highly recommend his dental practice for regular cleanings, fillings and crowns. All dental work is completed gently and thoroughly so that the experience is stress-free. Finally when my now adult son was a boy he really liked going to get his teeth cleaned at Dr. Thiel's practice because of the friendly and relaxing atmosphere.
Thanks for the kind review Mary ! Can't believe that little boy is all grown up ! We loved seeing you again !!
Fantastic experience: I have visitef Dr. Donald Thiel for my dental neeeds. It has been a good experience for me. Dr. Thiel is a very competent and experienced dentist. He treats his patients very professionally and with great care. He also has a great sense of humor and makes patients feel at home.
Fantastic experience: Great - great doctor, great staff!
Fantastic experience: Such an amazing team and Office I appreciate Services there, and I highly recommend
Fantastic experience: A good experience! No complaints.
Fantastic experience: Great experience!! Love Sue!!
Fantastic experience: Dr Thiel is very professional while still a very caring dentist. He doesn't want to do unnecessary procedures like some dentists I had to see when my insurance at work changed. They said that I "had to do dental surgery immediately" upon seeing me for my first visit with them. So even though our insurance didn't cover Dr Thiel because they didn't except that new insurance at that time, my husband and I both decided the care we were getting with Dr Thiel was worth paying the out of pocket expense to see Dr Thiel. That was 28 years ago and we still have no plans to change. Our new insurance now includes Dr. Theil so we are very happy about that. We love our dentist's office and staff. They are great...very personable, nice, and friendly! They were great as always on my check-up visit , 04/30/2024. Great visit as always! 06/25/2026. Thank you Dr. Thiel.
Fantastic experience: I actually enjoy going to the dentist here! The staff members are very friendly and efficient. Dr. Thiel is terrific - very thorough and knowledgeable and a pleasure to talk to. The office is well-run and welcoming. I recommend this practice highly.
Fantastic experience: Another great visit with the best family dentist in New Jersey. Doc Thiel and his office of caring professionals are a model for what what good, honest medical practice can be.
Fantastic experience: I feel very comfortable and confident with the care I receive.
Fantastic experience: Just had my cleaning and checkup . The office manager got me in, because I needed to change my scheduled cleaning, due to an upcoming surgery. As always, the hygienist was gentle and thorough. Dr. Thiel was as nice as ever. Again, love the family feeling of this office! Once, I had chipped the front surface of one of my front teeth. Oh no! But, no worries, Dr. Thiel's office manager got me in fast, and the staff was so friendly! Dr. Thiel's relaxed manner put me at ease, and he fixed it so well, it's invisible!!! I have gone to Dr. Thiel for years now. The small practice makes them seem like family! So attentive!
Fantastic experience: Great dentist, great office, great staff. I have some particular issues with my teeth and this office does a great job of handling my mouth with care and keeps my teeth in great shape.
Fantastic experience: Always thorough & personable!! Excellent dental care!! And great staff!!!
Fantastic experience: Great family dental care
Thanks so much John! It was great seeing you , always love to hear about the family too !
Fantastic experience: Dr Theil and his specialist staff are like family looking out for our health and well-being. Along with many of our friends, we have relied on their professional skills and friendship for many years.
Fantastic experience: 100000/10. I will be recommending Dr. Theil to everyone! Peggy and the entire staff are so kind and a pleasure to work with! Very informative and so helpful!!
Fantastic experience: Nice family business. Nice friendly people.
Fantastic experience: Always excellent! 30 plus years and counting Simply the best!! .
Fantastic experience: Dr. Thiel is an extraordinarily excellent dentist. He is highly skilled, very courteous, most understanding and compassionate. I enthusiastically recommend him
Fantastic experience: Dr Thiel and his staff are caring competent and professional!
Fantastic experience: Very good. Service as usual. H highly recommend
Fantastic experience: Wonderful guy! Knows his stuff. Makes a real effort to understand and talk with his patients. Nice staff and hygienists.
Fantastic experience: My husband and I, including his elder mom have been going to Dr Thiel forever! We actually ENJOY going to the office because they are all very professional, efficient, and always in a great happy mood. Not many can say they look forward to going to the dentist,right? Dr. Thiel is a Master Dentist and has perfected the art of dentistry. His crown work is perfecto. Dr. Thiel and his staff are gentle and compassionate and ensure that you are never in any type of pain in the chair or afterwards. They truly care for their patients. We drive 45 minutes to visit Dr Thiel and I would drive even further if it was necessary. I highly recommend Dr. Thiel for all dental needs.
Thank you for your kind words. It is really gratifying to have patients take the time to write a positive review. And be pleased with the dental care. It is always great to see you and David!
Fantastic experience: My family has been going to Dr. Donald Thiel’s practice for 20 years. Even though we’ve moved further away, we continue to come here because we haven’t found anyone as skilled and trustworthy as Dr. Thiel. To me, a doctor is someone you trust completely because your well-being is in their hands, and Dr. Thiel has earned that trust through his professionalism and experience. Time has only reinforced this confidence. Susan, the hygienist, is excellent—she’s thorough, gentle, and truly cares about her patients. The entire office staff is exceptional. They never let you forget what matters most—your health—and are always proactive and thoughtful when it comes to scheduling and follow-ups. I prefer this practice because they genuinely care, and it shows in everything they do. If you choose Dr. Thiel’s office, you won’t regret it.
Fantastic experience: Very friendly, warm atmosphere. Dr. thiel and his wife are very detailed. Thank you for an excellent experience..
Fantastic experience: 5 Stars are not enough! Very professional and kind.
Fantastic experience: As before, competent, efficient, and friendly, with fare prices.
Fantastic experience: Always a pleasant atmosphere.
Fantastic experience: I've been a steadfast long term patient receiving excelent dental care and preventaative maintenance service for myself, my wife ,and including our children. It is the sincere and careful attention to detail toward providing superb dental health care that has never waived. I travel a good distance regularly, becace good dental health positively impacts much of your overall daily health and well-being. The 5-star review has been earned time & agin; and I am most grateful. Thank You Dr. Thiel & to your entire Team!
Fantastic experience: It has been many years….truly attentive, listens to patient concerns And very professional !! Great Dental care
Fantastic experience: New to the practice. Welcome was friendly. Susan, the hygienist, is fantastic. Personable, answered questions and the best cleaning I've had in years. Dr. Thiel went over X-rays, answered my questions and set my fear of new dentists to ease. All in all a very pleasant visit.
Fantastic experience: Sue and Doc are the best! You always leave there with your teeth feeling great.
Thank You for your kind words Kevin!!
Fantastic experience: Dr Thiel and his team are accommodating, friendly and efficient from scheduling to checkups to procedures.
Thank you for your kind words!
Fantastic experience: Wonderful experience all around! Sue the hygienist, Dr. Thiel and Peggy are exceptional! Makes going to the dentist very enjoyable!
Fantastic experience: Great and attentive care and professional and friendly staff.
Positive experience: Sue is an excellent dental hygienist. She is careful, thorough, painless, and pleasant. I have nothing but good things to say about her.
Thanks Carol ! Sue is truly the best , we appreciate your kind words.
Fantastic experience: Dr. Thiel is a first-rate dentist. He is gentle and skillful, and so are the dental hygienists. The calm, friendly atmosphere throughout the office puts me at ease. My family has gone to this practice for years, and everyone has nothing but praise for the treatment Dr. Thiel and his staff provide.
Fantastic experience: Thank you for the excellent care It’s was an amazing experience I did not experience pain or discomfort during the whole dental procedure ! The staff is amazing!
Fantastic experience: I just love Dr. Thiel and everyone who works there. They are always so pleasant and nice.
Fantastic experience: Caring as always. .
Thank you so much for the praise ! We sincerely appreciate you taking the time to recommend us!
Fantastic experience: Always a pleasant experience!
Fantastic experience: Dr Thiel is the best. I’ve been a patient since I was a kid. He’s very thorough with a professional and friendly staff.
Fantastic experience: Dr. Thiel is a wonderful dentist. He is kind and really cares about his patients and he knows what he is doing!
Fantastic experience: I’ve been a patient for 20 plus years . Great service , friendly staff and very knowledgeable & professional. I have recommended 4 friends there .
Fantastic experience: Great visit with doctor Thiel, from the moment I walked in the door, til I was finished with the teeth cleaning. Sue, the hygienist was thorough and gentle and friendly. Dr. Thiel didn’t “look” for things that needed to be worked on. He noted a few things to watch and sent me on my way. Peggy, at the front desk was also super friendly and very helpful! I’m thrilled with the whole practice!
Fantastic experience: Always a pleasure!!! ☺️
Fantastic experience: A great dental.practice !
Fantastic experience: Always the utmost care of Dr Don and his wonderful staff .
Fantastic experience: Dr. Thiel is an excellent dentist. He is thorough, kind and skilled. I've been a patient for 38 years. I trust him with my family's dental health and feel very fortunate he is our dentist.
Fantastic experience: The office staff are personable and polite. Dr. Thiel is the BEST!
Fantastic experience: Everybody there was great. Took me in as new patient emergency and helped me greatly. I will be going back
Fantastic experience: Have been going to Don Theil for many years - trust him and his crew - his helpful, lovely partner Peggy and talented dental hygienist Susan is absolutely the best!!Highly recommend! Very professional!
Fantastic experience: Great experience and staff is very friendly and professional.
Fantastic experience: The Thiel team is the best! I have been coming here for more than 30 years, and I have always had the best dental care. They are professional and so pleasant and always willing to fit me in when there was an emergency. My whole family has been coming here, and we have always been happy with their service.
Fantastic experience: Excellent service. Very friendly office. Susan, the hygienist does a very through cleaning. She took the time look up my mouthwash to make sure it was a good one to use. Dr. Thiel explains things well. So glad someone recommended this office. Appreciate that they could make an emergency appointment the same day.
Fantastic experience: As a new patient I am generally very pleased with the care and comfort of this visit. Dr Thiel spent more time explaining what he was doing and made my visit very comfortable. Looking to continue this relationship
Fantastic experience: Dr Thiel took a lot of time to explain in detail a lot of different options and outcomes and gave me his expert opinion. His entire office was helpful, understanding and compassionate. From booking an urgent appointment, to getting my X-rays to their office, to giving me information and referrals, to helping me to understand what my treatment options are, to lessening my anxiety. All of it invaluable! I trust them completely. Thank you Dr Thiel’s Office.
Fantastic experience: The office is always clean, always prompt, always pleasant and professional and I mean always. I have literally been a patient here for over two decades and have never had an unpleasant experience !
Thank you for your kind review. It is always a pleasure to see you!
Fantastic experience: Dr Thiel is an excellent dentist with the added benefit of an artist’s touch. I always look forward to my dental appointments , the staff is warm, friendly, organized and efficient. The office is spotless. I have been relying on Dr Thiel for close to 30 yrs to keep my old teeth clean , healthy and looking better than I thought possible- and with no pain.
Fantastic experience: Friendly, knowledgeable and runs on time!
Fantastic experience: Truly the most trustworthy dental practice we have ever know. I come from really far away to be seen here because there is never any doubt about the care and never a hard sell.
Fantastic experience: Who would have thought? Going to the dentist is an enjoyable experience. Thanks Dr Thiel and your staff.
Fantastic experience: As always, professional and thorough. All of my questions and concerns are answered. I walk out smiling!
Fantastic experience: I have been a patient of Dr. Thiel since 1986 and have always received the most professional and competent care without exception.
Fantastic experience: Been coming here for years. Dr Thiel and hygienist Sue are the best.
Fantastic experience: Dr. Theil is a very professional dentist. He is nice and kind and ensures I maintain my beautiful smile…
Fantastic experience: The BEST!!
Fantastic experience: I‘am new to this practice and it was a complete change from my previous dentist. All of the staff were a complete pleasure. If you’re in the market for a new dentist look no further.
Fantastic experience: Wonderful dental practice. Highly recommend.
Fantastic experience: Dr thiel is fantastic! Extremely friendly, and thorough ! Highly recommend!
Fantastic experience: Everyone at the office is very nice and personable. I didn't have to wait to be called in. Highly recommended!
Fantastic experience: Dr Thiel and his staff are so knowledgeable, friendly and professional. They communicate very well and make the whole process as painless as possible .
Fantastic experience: The office and everyone that works there has a comforting way of being familiar like family and yet very professional and competent at the same time.
Fantastic experience: Friendly, kind, gentle environment
Fantastic experience: Great dentist and his hygienist, Sue, is very professional and friendly. They both care about your comfort and your dental health
Fantastic experience: Excellent service. Friendly people. Highly recommend!
Fantastic experience: Dr. Theil and their team are exceptional. They take the time to carefully explain each step of the process, address every question, and ensure you feel comfortable throughout. Over the years, I’ve had everything from standard cleanings to more advanced treatments, and their work has always been top-notch. What really makes them stand out is their genuine care. They treat you like part of their family, turning every visit into a positive and comforting experience. It’s evident that they truly prioritize their patients and their well-being. I’m incredibly thankful for their dedication and wholeheartedly recommend them to anyone!
Fantastic experience: Great experience. Friendly courteous, and professional.
Fantastic experience: Awesome Dentist! Great Atmosphere and Family Operated! Can't Get Any Better Then That !
Fantastic experience: Outstanding dental care! Professional with a beautiful personal touch!! I highly recommend them!
Fantastic experience: First time visiting my wife’s dentist. Now I know why she goes to this practice. I have now transferred my dental records over to this practice.
Fantastic experience: Dr Thiel and his wife and staff are very professional and kind. Also very accommodating with my schedule and were extremely quick giving me an emergency appointment. I recommend them highly.
Fantastic experience: The best place ever for dental services
Fantastic experience: Dr. Thiel is an excellent dentist. A true professional!
Fantastic experience: Dr.Thiel is just great. Been going for years. He takes the time to review all your concerns and tells it like it is. If you need something done he'll let you know, if you can live without it he's honest about it and won't push unnecessary work. The entire staff makes you feel comfortable and like a VIP.
Fantastic experience: Very Professional!! and On Time. Great work on my dental needs and good advice and referrals on what to do next.
Fantastic experience: Dr. Thiel has been my dentist for many years. During that time I have never had an unpleasant experience no matter how involved the procedure. Dr. Theil and his staff are very patient and they take care to explain what they are about to do so there are never any surprises. I highly recommend Dr. Theil to anyone seeking top notch dental care.
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