Vamshidhar Chigullapalli

Data Analyst @HCA Healthcare

TX, US

Managed a patient readmission prediction project, analyzing data from patient records across 5 HCA Healthcare facilities to reduce 30-day readmission rates for heart failure patients• Utilized SQL Server to extract and integrate 500GB of patient data from EPIC EHR systems, improving data accessibility by 25%• Developed 8 Python scripts using pandas and NumPy for data cleaning and preprocessing, reducing data preparation time• Created interactive Tableau dashboards to visualize readmission trends and risk factors, increasing stakeholder understanding of key metrics by 30% as measured by post-presentation surveys• Implemented a logistic regression model using scikit-learn, achieving 75% accuracy in predicting high-risk patients for targeted interventions• Conducted A/B testing on post-discharge follow-up protocols, using Python for statistical analysis to identify a 7% reduction in readmissions for the intervention group. Utilized SAS for time-series analyses, forecasting monthly variations in readmission rates with 80% accuracy• Created a semi-automated ETL process using SSIS, integrating data from 3 different hospital systems• Implemented data quality checks using SQL queries, reducing data errors by 20% and ensuring 98% accuracy in patient risk profiles• Leveraged AWS services, particularly Amazon S3 and AWS Lambda, to automate daily data transfers and risk score calculations for the 5 participating hospitals, processing 50GB of patient data daily

Amrita Vishwa Vidyapeetham, Coimbatore

Bachelor of Technology - BTech

University of North Texas

Master's degree