Dr. Kosa is outstanding and so is his entire office staff. He has a great bedside manner as well. I had a chronically inflamed tooth that he treated with a root canal procedure. Although it very sore afterwards--apparently in the normal range--after about 12 days it was finally completely pain free for the first time in a year. His office provided very attentive follow-up with me to ensure I was comfortable. read more

If you need to have endodontic surgery and or any other procedures; please choose Columbia Endodontics! Dr. Mehlhaff and his entire staff are fabulous! Everyone is very professional, caring and sincerely concerned about your well being. Everything is explained to you with out having to ask. I have huge PTSD when having any dental work done. Not here. I feel very safe and calm; I just know I am in very good hands. Thank you so very much! read more

Terrible place, drove all the way here and they forgot to put it on the calendar. I wouldn't use the place.

Dr. Kosa and the staff here are wonderful. When getting a cavity filled at my regular dentist in Rainier, the decay was worse than expected and needed to be drilled down to the root, which turned out to be infected. They referred me to this practice. Dr. Kosa's schedule was booked out for three months, but they made time in the schedule to get me done a couple days later (it was over the weekend and I had a work conference I had to attend). They accommodated my sensitive gag reflex and were very attentive to my comfort, answering questions, and in allaying my fears. After the root removal, I needed to come back to finish the job after a course of antibiotics took out the infection. They called to check on me throughout to make sure I was doing well and comfortable. Yesterday they finished the procedure, and I feel almost back to normal. Dr. Kosa personally called today to make sure I was doing well. Most of my insurance was used up with the work done by the other dentist, and Dr. Kosa's office worked out a payment plan to ease the burden of an unplanned root canal on our budget. I have no reservation in giving them a 5 star review. read more

I had root canal work done here by Dr. Mehlhaff and was very happy with the level of professionalism, the quality of the procedure, and the staff in general. read more

Terrible. Terrible. Terrible. DO NOT GO HERE, THEY WILL RIP YOU OFF AND SCREW UP YOUR CREDIT. They sent me to collections over a $38 charge for missing an appointment that I didn't need in the first place. Basically I had to get a tooth vitality test after an injury (essentially they put ice on your tooth to see if you can feel, it. I can do that at home if I need to, don't need a frickin' doctor to tell me that). Anyway, I got one and even though the doctor screwed up during the procedure and broke a piece of dry ice off in my mout, I could feel it so the tooth was fine. They still scheduled me for a followup even though I insisted I didn't need one: why pay for them to do a test I can do at home on my own. Anyway they scheduled it for when I was already going to be at school. They called me before the appt and left a message, I never called back or showed up. Never heard from them again. 4 years later I pull my credit report and low and behold they friggin' sent me to collections for a measily $38 for DOING NOTHING!!!! Now I'm trying to get my otherwise perfect credit report rid of this one blemish because some cheap ass company decided to send me to collections over nothing instead of actually contacting me. SHAME ON YOU COLUMBIA ENDODONTICS GROUP. I hope you all need emergency root canals that aren't covered by insurance and the anesthesiologist doesn't show up that day. read more

I am terrified of the dentist and avoided dealing with a needed root canal for a couple years. Dr Kosa had to do two procedures on a previously done root canal by someone else. Not only did he make it so that I was comfortable but he even called to see how I was doing the next day. Ive had doctors offices call to check up on you but never the doctor themself. If you have to have a root canal, you couldnt be treated better than Dr Kosa at Columbia endodontics! read more

Do not go here! My dentist referred me to this place for a root canal. It was a molar. The average in this area is $711.27 for a molar root canal. The 95% is $937 for high cost of a molar root canal. They said my insurance would cover all but two payments of $175. I paid them and later got a bill for another $227.20. I looked at the bill and the total was for $1275.00. This cost was obviously not for the facilities. It is a converted residential house. It was not for the equipment. I could see rust in the joints of the equipment as I laid there getting worked on. The dentist was not bad but the whole experience was average at best with a very high cost for the area. Do yourself a favor and shop around. read more

I was referred here for urgent dental work. Toothache that needs a root canal. I got in the same day and Dr. Kosa took care of my inflamed nerve problem. He explained everything and personally called me the next day to see how I was doing. Everyone in the office was very friendly and helpful. I will need to return for a root canal but I'm not in pain until then. Yay. read more

Perfect and pain free. Usually takes 6 shots of Novocain just to get close to numb. He wrote a script for a couple of pills. Two shots later and it is all good. No pain. I'm so grateful! I hate mouth pain! It was a complicated root canal. Took 2 hours to do. Nicely done. read more

Best place to get a root canal! The doctors are amazing! Great front desk and assistants. Wish I could give them 10 stars

I had a root canal done by Dr. David Kosa after being referred by my dentist. They got me in for an exam that same day, did the root canal the next, and finished it up when I returned from a vacation. It was a "challenging tooth" as Dave said as he patiently and methodically did the procedure. They're very friendly and professional and easy to recommend. A shout out to Heather his assistant during the procedure. read more

I have nothing but GREAT things to say about this Doctor and staff.. Dr. Mehlhaff was extremely helpful in explaining my root canal. He took his time to really care about me being scared about the whole thing. I was surprised at how really painless it was. His staff is caring about the whole comfort of your visit. Great experience.. Thank you very much and a happy camper I am. read more

Do NOT go here. I was referred here by Kaiser for what was a somewhat complicated root canal. The dentist, Dr. Overby not only botched the job.....sending me into a year of $13,000 worth of dental implant work.......his manner was abrupt and unprofessional and I would have sued this group had their connection to Kaiser not been so strong. Don't GO THERE read more

I was referred here by my current dentist for a root canal. My dentist is wonderful but since he just put a crown on me, and I had some pain afterwards and he said if the pain didn't clear up, I would need to go see an Endodontic dentist. On Tuesday morning at about 1am I woke up to the worse pain I have ever had. Aleve and Tylenol were just not working so at 7am on the dot, I called over to Columbia Endodontic Group. Jolene answered my call and I explained what was going on. She said that she could get me in the next day at 6:45am but then said she wanted to check with the dentist to see if he wanted to see me sooner. She came right back saying that she had spoken with Dr. Kosa and he wanted to see me today and she scheduled me for a 3:45pm appointment. Around 11:30am just as I was realizing that it was going to be a long painful day my phone rang and it was Jolene saying that Dr. Kosa had time and wanted me to come in right away. I of course jumped at the offer and headed over. When I got there, I filled out a few forms and they ushered me right back. They took an x-ray and Dr. Kosa came in, we talked for a few minutes and after a quick examination of the tooth in question, he confirmed I indeed needed a root canal. Dr. Kosa was very careful to make sure I was comfortable the whole time and often asked if I was ok and if I needed anything. 60 minutes later, he was done. I was out the door and after the novican wore off, I had very minimal pain. Fast forward to the next day, my phone rang and it was Dr. Kosa himself. He called to check on me and make sure everything was ok and asked about my pain level. I have never had a Dr call me personally to follow up. From my initial phone call at 7am to the follow up call from Dr. Kosa, it was the best experience. I hope to never have to go back but if I do, Dr. Kosa will be my first and only choice. read more

I recently had a root canal performed by Dr. Kosa. I was referred to him from my dental facility and I am so glad they did. I have had several root canals in my life and this was by far the best. The anesthetic shots were give with such obvious skill and were almost painless. Two days now and I am pain free! Thank you so much!! read more

The staff and Doctor were beyond my expectations very informative and concerned with my wellbeing. The best procedure I have have since i left eastern wahsington. Highly recommend them!!! read more

WOW!!! What a GREAT EXPERIENCE!!! From the moment I made the phone call the moment I left the office. The front office girls are very friendly and the docotor and the assistant made me feel very at ease. I would recommend this office to my friends and famliy for any root canals they may need. read more

i saw DR overbee at Columbia Endodontics, he assured me of 95% success for this retreat root canal.for $1250.00 . the procedure failed.they said we give you partial refund if the tooth failes, they lied, i have tooth ache and infection in my jaw which is causing other problems, they lie to you, for personal gains, now they want to do surgical procedure to remove the cyst for another $1450.00, which will fail again. don't trust the liars. they will do and say anything to rip you off...thats the new wave of doctors, worse than freaking car salesmen. read more

COLUMBIA ENDO GROUP are the greatest root canal specialists in a 100 mile radius!!! I've had a lot of root canals and been to many specialists, and these guys are the Best! No pain! Excellent assistance w billing insurance and scheduling! Very professional and very friendly and caring. read more

This office cares about you and your comfort during procedures. I have a neighbor who have had treatment there and had excellent results. I needed a root canal and my doctor did not want to tackle this tricky of one and referred me to an Endodontic office . I did not know the Dr's he was referring me to. I was worried and scared. I needed pain relief for a problem tooth. I called my friends office and they worked me into the schedule. While it took longer than it would have with a scheduled appointment I am now pain free. I still have my tooth and will return there if I ever have the need for their services. I have to say something about the negative review posted January 2010. Marshall you made the appointment, you said they called you and you did not show up or return the call. They saved time for you and you wasted it. You deserved to be charged. Businesses send bills. I expect you ignored it, and those that followed. I have a question for you? Why did you make and accept the appointment when they made it? You choose to make the appointment it was your responsibility to advise them about not coming. They are not mind readers. They saved you time and you wasted it. Perhaps some one in pain had to wait for another day because you choose not to respond. read more

I do not like dentists, in fact they scare the bejeesus out of me. Willamette Dental referred me to them for a root canal because they did not have the time to do the procedure and I had an exposed nerve. The staff was professional and very friendly. The Dental Assistant was intelligent and answered all my questions in a way I could understandt. When it ca me down to the work, the doctor explained what and why he was going to do what he was going to do. They also took care of my fear by giving me happy gas while constantly asking how I was doing and if I was feeling any pain which I was not. After the appointment, the doctor himself called to see how I was doing. Not an assistant but the doctor himself. I was impressed by the entire office staff. With the exception of playing country music in the waiting area (I'm not a fan) I could not have been treated better. Nice job to you! read more

I was referred to this company because I am in need of a root canal. Out of pocket cost is $402.50. Because of the cost, I instead wanted the tooth pulled, but I was told this was not in my best interest. Because this company does not take payment plans, I've had to reschedule my appointments until I could figure out the money situation. We came up with a resolution to this problem with me applying for a Care Credit. When I called back, while filling out the application, to see which doctor was going to do the root canal, I was informed that I had been "fired from our practice." Their words verbatim. We discussed the reasons why for a minute, but she said she could not "go into detail." They mentioned some appointments I rescheduled in 2005 which I was pregnant at that time, and did not think I could have surgery while being pregnant. I asked for a copy of my medical chart. They informed me that they would need to get "approval' for this. I indicated that it is my right, as a patient, to have a copy of my chart. She stated that she still needed to get approval and would mail it to me. read more