The actual root canal was great. The Dr. was very very thorough and cautious. For this, I give Olney Endodontics a 5-star.(I only had the procedure done and the actual crown was done elsewhere.) HOWEVER, when it came to submitting to insurance, customer service, and reimbursing me — forget it. 0 stars. For one, they filed paperwork with the wrong date and never corrected it, which effected my deductible and what my insurance will cover. Plus, it’s simply a legal obligation they wouldn’t fulfill. When I called and asked them if they would do it on a particular day(since I had already spent a month harassing them and they wouldn’t) I was told, «If I have time.» A month later and it still hasn’t been corrected and resubmitted. The office also charged me for 1) a procedure they did not do(as proved by x-rays) and 2) for another procedure they are not allowed to charge for in conjunction with the root canal(as 2⁄2 Metlife reps told me). The office also charged me more than my insurance allows them to charge, which means they owe me several hundred dollars since it is «payment upon service». They have never sent me a check. It’s been more than two months. The office has also never, ever called me back. Ever. They tell me they have more than once but it’s 2015. I have a cell phone and VM. I know if you did or did not call me. I am currently filing an appeal with MetLife and getting supporting documentation(including X-rays) from the Dr. who did the crown that the office did not do the procedure they charged me for. I wish I could give a 5-star rating because the Dr. was very diligent with my mouth, but I don’t like me hustled.