Hindi naman kailangan i-update agad kung gamitin mo lang locally dito sa area mo, pero honestly mas safe kung i-update mo na para walang hassle later, lalo na pag kailangan mo ng claims or emergency, baka mahirapan ka na mag-present ng valid ID with matching details, you know? One of my mum friends had issues sa hospital kasi ang address sa MDR niya was old, so they made her update it on the spot pa lang which was super inconvenient, so I'd say mag-request ka na sa employer mo or directly sa Philhealth to update, mas mabilis lang yan kaysa mag-worry later!