The Internal Audit Services Office provides the following services for offices and hospitals of the Provincial Government of Pangasinan:
1. Audit Engagement Services – assessment and evaluation of internal control system, quality management system, and program & project effectiveness of offices and hospitals;
2. Provision of Internal Audit Opinion – provision of opinion on inquiries related to the implementation of controls, guidelines, policies, and practices on offices and hospitals to determine the level of compliance to existing statutory and regulatory requirements;
3. Policy Development Services- preparation of policies and guidelines that aim to establish internal controls in offices and hospitals of the Provincial Government of Pangasinan.