The document contains two sample authorization letters for PhilHealth. Too busy to go to the PhilHealth office?Learn how to make an authorization letter so your representative can transact with PhilHealth on your behalf. In behalf of my presence, I would like to authorized Mr. BEN JAN N. BASILISCO,. To process and claim my Request. I, Princess Natalie Rubianes, am writing this letter to authorize Maria Teresa Castañeda to act on my behalf regarding my PhilHealth-related transactions. I am granting this authorization due to medical reasons. I confirm that all the information. To allow us to share your PHI, please fill out the form completely. You will find helpful tips for filling out this form on the back of this letter.