Comprehensive Web-Based Hospital Management System Development

I need a complete Hospital Management System (HMS) developed from scratch for clinics and hospitals. The system should be web-based, responsive, secure, and scalable, with a modern user interface for administrators, doctors, receptionists, laboratory staff, pharmacists, and patients. Required Features: Patient registration and management, Electronic Medical Records (EMR), Appointment scheduling and calendar management, Doctor and staff management, Admission, discharge, and bed management, Laboratory management and test results, Pharmacy and inventory management, Prescription management, Billing, invoicing, and payment tracking, Insurance management, Reports and analytics dashboard, Multi-role access control and permissions, Audit logs and activity tracking, SMS, Email, and WhatsApp notifications, File and document uploads, Multi-branch support, API integration capabilities. Technical Requirements: Clean and scalable architecture, rest api development, responsive design for desktop, tablet, and mobile, secure authentication and authorization, database backup and recovery mechanisms, documentation and source code delivery, future-ready architecture for ai integrations such as chatbots, appointment assistants, and automated patient support. Preferred Technologies: ASP.NET Core / .net, sql server, entity framework core, react.js, Angular, or Blazor, Azure or AWS deployment. Deliverables: Complete source code, Database scripts, Technical documentation, Deployment guide, User manual, Post-delivery support.