How Can We Help?
Our Dental Office is Conveniently Located on Clearwater Ave. Near Hansen Park, Canyon Ranch, and Amon Creek Developments
Kennewick Dental opens at 7 am and closes at 6 pm Monday through Friday, the earliest and latest weekday hours of any dentist in Kennewick. Drs. Madder, Rowley, and Zentz care for patients of all ages, from routine cleanings and cosmetic work to same-day dental emergencies, with sedation dentistry available for those who feel anxious in the chair. And if you don't have dental insurance, our in-house Membership Plan starts at $20 a month, so preventive care stays affordable.
We take pride in helping people develop best practices when it comes to maintaining their oral health. We ensure that our clients understand the importance of taking care of their teeth by educating them on healthy habits, along with offering treatment and preventative procedures that have lasting impacts on the satisfaction of their oral health.
Visit Our Full Service Dental Office in Tri-Cities/Kennewick, WA
We specialize in general dentistry, cosmetic dentistry, dental implants, tooth whitening, and we are proud to offer Invisalign® clear braces to our clients.
Our Kennewick dentists are committed to giving you the highest quality care and guarantee when it comes to improving your oral health. We always take the time to explain procedures, treatment options, and preventative measures to ensure you’re able to make the best decision about your oral health.
If you are looking for a dentist in Kennewick, look no further than Kennewick Dental. At our practice, you can be sure of the professional and courteous dental health care you will receive.

We serve people at our Kennewick family dental office, not patients. We treat each person with respect and compassion, ensuring you are comfortable from the moment you step into our practice.
Nervous or anxious about the dentist? No problem, we offer sedation dentistry at Kennewick Dental.
Don't have dental insurance? Our in-house Membership Plan starts at $20/month and covers your cleanings, exams, and X-rays, with no deductibles and no annual maximums.
Contact us to book an appointment today.
From Our Patients
Dr. Madder and his staff are absolutely wonderful. It had been nearly 20 years since I had been to a dentist because I was afraid of dental work. I've been to Kennewick Dental several times now, Dr. Madder and his assistants make the process as stress and pain-free as possible. They explain what's going on with my teeth in a way that is easy to relate to and puts me at ease. I 100% would recommend!
- Dan Marion
I have had so many bad experiences at the dentist and have extreme anxiety about going. The dental hygienist and dentist were amazing! The front staff was so friendly and comforting. Would recommend!
- Chelsea Hale
Cannot say enough good about Kennewick Dental and Dr. Madder. Always friendly and kind. He was great about explaining all steps of proposed procedure. Super auxiliary staff and receptionists. Highly recommend!!
- William Taylor
Dr. Rowley does excellent work and I am always satisfied with his staff. They five phenomenal care and even my kids love going to the dentist now! My husband and I have also had a very positive experience here. I highly recommend this dental office for all ages!!!
- Sarah Ritchie
These guys do great work very professional and are always on time. They know your time is valuable and are always ready. Best rootcanal ever?? Never thought I would post those words. Dr. Madder explained every step of the process. Could not be happier with the work done and the pain is gone. Keep saying perfect to every step so that was a real bonus.
- Barry Barnhart
Kennewick Dental has the best dentists in Kennewick. Broke a tooth and they got me in the same day I called them. I'm hard to deaden, but they got it right the first try. Very understanding and gentle.
- Mary Kerns
Thank you for a great experience. My cleaning was the best! I highly recommend Kennewick Dental.
- Laura B.
Amazing staff. Gentle dentist that does things right the first time. He was able to numb up an area the first time that no other dentist could do.
- Krysteena H.
The best cleaning I have ever had. The doctor is the first out of 3 consultations that addressed the fact that my gums needed to be fixed. Will send my whole family to them and my friends. Thank you
- Tracie M.
I have a long standing distrust of dentists, and like most people am not a fan of dental work. About 6 months ago Kennewick Dental told me I needed a crown due to a structural flaw in one of my teeth. I figured it’s been good for 55 years so it should be good for 55 more. Turns out they were correct, and had I listened I would have saved money and kept my tooth. I learn the hard way sometimes. Smart dentist, less than smart patient. Great care with little to no pain. I’m sold on Kennewick Dental now and very thankful for their professional knowledgeable care. Definitely an easy 5 stars for me now. Thanks!
- Scott Clemenson
The Kennewick Dental staff are always very welcoming when you come in to visit. They knew me right away and as a patient, it feels like they truly care and want to get to know you. My husband and kids also go here and they are treated with respect and dignity. You are given options and they do their best to make everything the most cost-effective for their patients. They are great with young kids (ages 2 and 4) and have so much patience with them. Overall the best dentist office I have been to in a really long time!
- Katy O.
Meet Your Kennewick Dentists
Dr. Zentz
Dr. Mehak Zentz was raised in the Seattle area and was fortunate to attend the University of Washington for both her undergraduate and dental training. While in dental school, she met her now-husband, Ryan, and after graduation, they moved across the mountains to the Tri-Cities — and haven’t looked back since!
For Dr. Zentz, dentistry has always been about more than just teeth — it’s about people, trust, and building lasting relationships.
Dr. Madder
Dr. Madder grew up in Calgary, Alberta, Canada enjoying the great outdoors. He spent much of his time growing up camping, hiking and fishing with his brothers.
He is honored to serve as a health care provider in the Tri-Cities area and working with such great people.
He joined Craig Barney at Kennewick Dental in June 2015.
Dr. Rowley
Dr. Rowley grew up near-by Walla Walla. After graduating from Walla Walla High School, he earned his Bachelor’s Degree at Brigham Young University in Provo, Utah. It was there he discovered his passion for dentistry.
Dr. Rowley is passionate about providing gentle care with the best quality work possible. In addition, he loves keeping up with the newest technology and materials used to fix teeth.
About Our Practice
At Kennewick Dental, our motto is "we treat people, not just patients!" That belief shows up in three things that matter most: time, transparency, and modern technology. We don't rush appointments. We explain every recommendation and what each option will cost before treatment begins. And we invest in tools such as, digital scanners, diode lasers, and electric handpieces, so procedures are faster, more accurate, and more comfortable.
As dentists in the Tri-Cities area, we believe that listening to the concerns and expectations of our clients is the best way to serve them. You’ll get personalized service when you become a patient of Kennewick Dental.


