Noncommunicable diseases (NCDs) are the leading cause of global death and disablement, accounting for 74% of deaths. In Australia, NCD accounts for 70-80% of the total disease burden, including an estimated 89% of deaths. The impact of NCD differs for women and men, with women aged 18 years and over experiencing a higher burden of chronic disease (AMA 2014; AIHW 2012).  However, the literature is primarily gender-neutral and lacks a gender-specific approach to preventive health measures. Our study examines the dynamic effects of three common NCDs (CVD, diabetes, and musculoskeletal conditions) on the medical healthcare costs of older Australian women. The effect of NCD is estimated on total cost, out-of-pocket cost and total benefit computed from the administrative data of the Medicare Benefits Schedule (MBS) that covers the medical part of Medicare. Utilising nine waves (1996-2019) of the Australian Longitudinal Study on Women's Health (ALSWH) linked with MBS data, this study tracks a sample of 11,000 women in their 70s over the past twenty years. Application of a panel fixed effect regression model accounts for endogeneity regarding unobserved individual heterogeneity, for example, personal preferences or attitudes. The study also employs the Blinder-Oaxaca decomposition methodology, highlighting the relative importance of observed and unobserved factors in predicting healthcare costs. Preliminary analysis shows that women with NCD have increased healthcare utilisation in terms of three more visits to a GP and one more visit to a specialist doctor per year. However, these findings do not consider healthcare costs. We can now provide more precise estimates with access to linked Medicare cost data. The outcomes of this empirical study quantify the current cost burden of NCD for older women that can assist in devising appropriate policies for a sustainable healthcare system in Australia.