About OpenPrescriber

OpenPrescriber is a free, open-data platform that makes Medicare Part D prescribing data accessible, searchable, and analyzable. We process CMS public use files to create provider profiles, fraud risk scores, and cost transparency tools.

What We Do

• Provider Profiles — Detailed prescribing data for 1,380,665 Medicare Part D prescribers
• Risk Scoring — Multi-factor statistical model flagging outlier prescribing patterns
• Opioid Analysis — State-by-state and provider-level opioid prescribing tracking
• Cost Transparency — $275.6 billion in drug costs broken down by provider, drug, state, and specialty
• LEIE Cross-Reference — Matching active prescribers against the OIG's excluded provider list

Data Sources

• CMS Medicare Part D Prescribers by Provider (2019–2023) — 1,380,665 prescribers in 2023, 84 data fields per provider, 5 years of trend data
• CMS Medicare Part D Prescribers by Provider and Drug (2023) — Provider-drug level prescribing detail
• OIG LEIE Downloadable Database — 8,300+ excluded individuals and entities

Important Disclaimers

Risk scores are statistical indicators based on publicly available prescribing data. They do not constitute allegations of fraud, abuse, or medical malpractice. Many flagged patterns have legitimate clinical explanations — for example, pain management specialists are expected to have higher opioid prescribing rates. Always consider clinical context.

This platform is not medical advice. Prescribing data reflects patterns, not quality of care. Provider names are public under CMS data release policies.

Part of TheDataProject.ai

OpenPrescriber is one of 9 data transparency platforms built by TheDataProject.ai, covering healthcare, government spending, immigration, lobbying, vaccines, and farm subsidies.