Retrieve a single facility by ID

Returns the complete facility record for the given certify facility id, scoped to the calling tenant, as it exists in the Facility Operational View. Use this when you already know the facility identifier; use GET /facilities to search or list facilities instead. Preconditions: supply the tenant-id header; id must be a valid Certify facility identifier for that tenant. Returns an untyped JSON object built from the CoreFacility Operational View data — a top-level id plus name, npi, tin, dba, facilityType, externalId, delegationStatus, businessPurpose, userDefinedFields, addresses, emails, phoneNumbers, and array fields for licenses, certifications, insurances, accreditations, specialties, sanctions, siteVisits, medicareStarRatings, appVerifications, performanceIndicators, npdbReports, nppes, and supportingDocuments — plus credentialing fields (credentialingStatus, nextCredentialingDate, credentialingCycle, credentialingDecisionDate, credentialingStatusLastUpdatedDate) merged in at read time. Soft-deleted entries are filtered out of accreditations, insurances, certifications, and licenses. Locations are not embedded here — use GET /facilities/{id}/relationships/all for a facility's group, network, location, and practitioner relationships.