Ingest Qualified Health Plan provider directory and formulary machine-readable files to power in-network and drug-coverage lookups

Steps

1. Reference the CMS/carrier-defined JSON schema published in the QHP-provider-formulary-APIs specification for required file formats
2. Identify the carrier-hosted URLs where each issuer publishes its provider directory and formulary JSON files for its QHPs
3. Parse provider directory files to determine in-network providers and facilities for a given plan
4. Parse formulary files to determine drug coverage tier and utilization management flags for a given plan and drug
5. Validate parsed files against the published JSON schema, since carriers self-host and self-generate the files
6. Refresh ingested data on a schedule matched to each carrier's publishing cadence, since there is no centralized real-time endpoint