Comments: Dr. Perricelli is extremely knowledgeable about the knee. I had a total knee replacement, and my rehab was quite easy compared to my other knee replacement done 5 years earlier by another doctor. I completed my PT in about 6 weeks and had complete extension and flexion. He took time to answer all my questions. The downside to his practice is that it took me over 6 months to get just a consult with him, and now it takes about 9 months. I tried to refer friends to him, but they couldn't wait that long.