For comparison, here's the first bit of an Anthem file (which contains some of the data that's just another row in the Humana record), along with the first record

  "reporting_entity_name": "Excellus BlueCross BlueShield",
  "reporting_entity_type": "Health Insurance Issuer",
  "last_updated_on": "2022-06-14",
  "version": "1.0.0",
  "provider_references": [
    {
      "provider_group_id": 302.1518360704,
      "location": "https://mrf.healthsparq.com/exc-egress.nophi.kyruushsq.com/prd/mrf/EXC_I/EXC/providerReference/Providers/S-000000001063.json"
    }
  ],
  "in_network": [
    {
      "negotiation_arrangement": "ffs",
      "name": "Brief (20 minutes) care management home visit for an existing patient. for use only in a medicare-approved cmmi model. (services must be furnished within a benefi",
      "billing_code_type": "HCPCS",
      "billing_code_type_version": "2022",
      "billing_code": "G0081",
      "description": "Brief (20 minutes) care management home visit for an existing patient. for use only in a medicare-approved cmmi model. (services must be furnished within a benefi",
      "negotiated_rates": [
        {
          "negotiated_prices": [
            {
              "negotiated_type": "fee schedule",
              "negotiated_rate": 51.1,
              "expiration_date": "9999-12-31",
              "service_code": [
                "11"
              ],
              "billing_class": "professional"
            }
          ],
          "provider_references": [
            302.1518360704
          ]
        }
      ]
    },