Objectives: Our main goal is to understand how demographic factors influence the medical care patterns of individuals diagnosed with malignant melanoma. We also aim to see how these care patterns and demographics affect the chances of survival in these cases. Rationale: Research has highlighted the crucial role of factors like race and socioeconomic status in determining the severity and outcome of melanoma cases. Yet, we lack comprehensive data about how these factors impact the use of medical care before and after a new melanoma diagnosis, even though these factors are known to influence the disease’s impact. Methods: We are conducting a retrospective study using the Epic COSMOS database, containing records of over 220 million deidentified patients. We’re focusing on patients newly diagnosed with malignant melanoma of the skin. We’ll examine their interactions with healthcare providers six months, one year, two years, five years, and ten years before their diagnosis and categorize them based on their demographic characteristics. We’ll conduct similar analyses for healthcare visits to dermatologists, surgeons, and oncologists after diagnosis. Finally, we will try to understand how these patterns may affect mortality rates. Expected Results: We anticipate that patients with higher socioeconomic status, especially those who are white, will have more prediagnosis dermatology and preventive care visits, as well as more visits to dermatologists, surgeons, and oncologists after diagnosis. We also hypothesize that patients with fewer care visits both before and after diagnosis will face higher mortality rates.