Aziz U.

Top Rated healthcare EDI developer: 13+ years in software, 170 Upwork jobs, $100K+ earned and 100% Job Success. I build X12 837/835/270/271 integrations, RCM platforms and AI automation that get claims paid faster. I've worked inside a US clearinghouse that processes provider claims, eligibility and ERAs. I know where claims break, and I know how to fix them. Whether your 837s are getting rejected, your 835s aren't auto-posting, or your team is stuck on manual eligibility checks, I can help. HEALTHCARE EDI (X12 5010) • 837P / 837I / 837D claim generation, validation and submission • 999, TA1 and 277CA acknowledgments, with rejections linked back to claims • 270/271 real-time & batch eligibility: status, copay, deductible, co-insurance • 276/277 real-time & batch claim status • 835 ERA parsing, payment posting and denial (CARC/RARC) reporting • Clearinghouse & payer connectivity (SFTP, APIs, real-time SOAP/REST) • My own EDI framework, The Easy EDI (see portfolio), so you get a working foundation, not a build from scratch REVENUE CYCLE & PRACTICE MANAGEMENT • RCM and medical billing platforms, denial management, A/R dashboards • Practice management (PMS) and EHR integrations via HL7 v2, FHIR and APIs • CMS-1500 / UB-04 generation, charge capture and claim scrubbing AI & AUTOMATION FOR HEALTHCARE • AI agents and LLM apps (Azure OpenAI, OpenAI, Claude) for denial analysis, prior auth, coding assistance and document processing • OCR / document AI for EOBs, referrals, insurance cards and medical records • End-to-end workflow automation for billing and front-office teams MICROSOFT, AZURE, WEB & MOBILE • C#, .NET / ASP.NET Core, Web APIs, SQL Server, plus Python and PHP when your stack needs it • Azure Functions, Logic Apps, Service Bus, App Service, Azure SQL, Key Vault, Azure AI Services • Web apps and cross-platform mobile apps for healthcare organizations • HIPAA-aware design: encryption, audit logging, role-based access WHAT CLIENTS SAY "His depth of understanding of EDI is second to none." – John W. "He built all of our logic for claim submission… this is what he does for a living." WHO I WORK WITH Health-tech startups, EHR/PMS vendors, billing & RCM companies, medical practices, labs, DME, NEMT/medical transportation and telehealth companies. Send me your EDI file, your error, or your idea. I'll reply with a clear diagnosis and plan, usually the same day.