Medicare utilization + payments by provider (CMS 'Physician & Other Practitioners - by Provider' annual dataset). Look up by npi, or filter by lastName (exact last/organization name) + state. Each row: provider NPI, name, credentials, entity type, full address, provider type/specialty, Medicare participation, beneficiary counts, total services, submitted charges, Medicare allowed/payment amounts, plus beneficiary demographic + chronic-condition aggregates — CMS's documented column names (Rndrng_NPI, Tot_Srvcs, Tot_Mdcr_Pymt_Amt, etc). Complements /api/health/open-payments (industry payments to the same NPIs). KYC, healthcare-fraud research, and provider due diligence. For a provider 360 (identity + industry payments + this) by NPI in one call, see /api/health/provider-profile. Public-domain federal data.