Implementation of Master Data Management (MDM) in an organization aims to help the process of consolidating and integrating various sources of master data into a solitary truth source. MDM is also able to help to solve the complexity of data that occurs in the synchronization, consolidation and cleaning process of data from redundancy, and to increase the value of operational efficiency through the standardized content which represents business-based process. The goal of this study is to assess the level of MDM maturity at Secretariat of Presidential Advisory Council during the COVID-19 pandemic era. The assessment was done using Master Data Management Maturity Model (MD3M) by Spruit-Pietzka. The master data management maturity level in the organization was assessed using a questionnaire filled out by SMEs in a group discussion. The result of the assessment showed that MDM maturity level at Secretariat of Presidential Advisory Council is 1. There are 61.29% (38 of total 62) implemented capabilities. This means that organization already has awareness in the management of master data. The organization can improve its MDM maturity to a higher level by implementing the missing capabilities.