If you are a fiduciary does that equal POA?

Usually yes as far ans the financial part goes, but you may need to review the actual paperwork and see exactly what it says. Financial POA and healthcare POA are often or even usually two separate things. If you are just starting the journey, there is one steep learning curve involved, and I wish you well! If in doubt, check with the planner who wrote the documents and/or get the elder law attorney consultation sooner rather than later.