Peter said he had been married 10:years but he was already married when Neal first came to New York which was more than 12 years earlier.
When Neal and Moz enter the clinic, it's established that Westlake's office is 207. A few minutes later, Powell mentions Westlake's clinic on the third floor.
At around 9m35s There's a typo in the paperwork Neal is showing to Peter. Neal says "Doctoral Global Initiative" but the paperwork reads 'INITIAVE'.
When the FBI team tries to fool Dr. Powell into thinking he has kidney failure, they fake medical symptoms to fool him, but he is a doctor; he could check his weight on any one of the numerous scales at his clinic, and he should definitely be able to tell the difference between skin irritation and rash from kidney failure. The food coloring trick is the least plausible as visible blood in the urine is the last stage of kidney failure; it doesn't just happen overnight, and Dr. Powell would have seen the other symptoms long before that one rather than all at once.
When Burke introduces himself as the chiropractor Dr. Tannenbaum, Melissa Cartwright asks him to deal with muscle knots on her back. This would be a job for a massage therapist, not a chiropractor; chiropractors deal with bones, not muscles.