No, whistleblower laws do not apply to this scenario, whistleblower laws are for fraud against the government, double billing etc, charges for things that were never done.
Years ago I worked for a hospice that had the worst patient care I had ever seen, and they were also pretty blatantly committing fraud, I was asked to change assessments on patients, weights, keep patients on who were clearly not hospice eligible, not reporting neglect situations, and providing services patients clearly were not eligible for. Anyway when I realized what was going on I contacted a lawyer and said what could happen to me if I don't report, he said you could lose your license, I then called OIG and asked the same question, their response was the same. Even though I stood on my documentation and assessments (I never changed anything they asked), I asked what information I could provide without violating HIPAA, they told me if I reported what I considered fraud and my name connected to anthing as the reporter I would be immune (again all my assessments were honest) So I reported, in the meanwhile I started looking for another job, found one, didnt mention anything of the true reason I left that company and started my new job. 6 days after I started it I was let go because they found out that I had reported the other company, and they threw thousands of dollars at me in severance and said they wouldnt oppose unemployment. So this is my point: You were probably let go for a two-fold reason, they didnt like the idea of you watching so closely because they feel if you reported this are you then going to report every little thing? To DPH OIG, or state board. and secondly, why exactly are you monitoring somebody that closely? It scares them to their core. Why was I let go from that second hospice? because they probably padded their pockets and if I reported once, I was in their infinite wisdom likely to report again. In your situation if stories didnt add up, I'd quite frankly refuse to sign off/waste with that person. jmho.