1. Log in to HCMS
2. Click profile picture icon in upper right of screen
3. Click on "View Profile" in the drop down menu
4. Click on the edit (pencil/pad) icon in the "Personal Details" box
5. Scroll to the NPN field
6. Add/edit NPN
7. Click "Save" button in lower right corner (scroll to bottom of page)
Please ensure that all required fields are filled out before clicking "Save" as any edits to your profile will not save if any required information is missing.