Creates user of Health Gorilla with roles Doctor, Staff, Nurse, Office Manager, Billing Staff.
HG uses additional attributes to pass initial password and login, it's defined as FHIR Extensions:

https://www.healthgorilla.com/fhir/StructureDefinition/hg-practitioner-login
https://www.healthgorilla.com/fhir/StructureDefinition/hg-practitioner-password
Profile to determine Practitioner with specific attributes is https://healthgorilla.com/fhir/StructureDefinition/hg-practitioner

HG supports following roles:

Code System	System
http://hl7.org/fhir/practitioner-role	doctor
https://www.healthgorilla.com/administrative-role	provider
http://hl7.org/fhir/practitioner-role	nurse
https://www.healthgorilla.com/administrative-role	staff
https://www.healthgorilla.com/administrative-role	officeManager
https://www.healthgorilla.com/administrative-role	billStaff

Example:

Create Doctor or Staff users

{
  "resourceType": "PractitionerRole",
  "contained": [
    {
      "resourceType": "Practitioner",
      "id": "1",
      "meta": {
        "profile": [
          "http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner",
          "https://healthgorilla.com/fhir/StructureDefinition/hg-practitioner"
        ]
      },
      "extension": [
        {
          "url": "https://www.healthgorilla.com/fhir/R4/StructureDefinition/hg-practitioner-login",
          "valueString": "testdocfhir"
        },
        {
          "url": "https://www.healthgorilla.com/fhir/R4/StructureDefinition/hg-practitioner-password",
          "valueString": "ChangeMe!"
        }
      ],
      "identifier": [
        {
          "system": "http://hl7.org/fhir/sid/us-npi",
          "value": "987654321"
        }
      ],
      "active": true,
      "name": [
        {
          "use": "official",
          "text": "Doctor 4 FHIR, MD",
          "family": "FHIR",
          "given": [
            "Doctor",
            "4"
          ],
          "suffix": [
            "MD"
          ]
        }
      ],
      "telecom": [
        {
          "system": "email",
          "value": "testdocfhir@example.com",
          "use": "work"
        }
      ]
    }
  ],
  "active": true,
  "practitioner": {
    "reference": "#1"
  },
  "code": [
    {
      "coding": [
        {
          "system": "https://www.healthgorilla.com/administrative-role",
          "code": "provider",
          "display": "Provider"
        },
        {
          "system": "http://hl7.org/fhir/practitioner-role",
          "code": "doctor",
          "display": "Doctor"
        }
      ]
    }
  ]
}

{
  "resourceType": "PractitionerRole",
  "contained": [
    {
      "resourceType": "Practitioner",
      "id": "1",
      "meta": {
        "profile": [
          "http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner",
          "https://healthgorilla.com/fhir/StructureDefinition/hg-practitioner"
        ]
      },
      "extension": [
        {
          "url": "https://www.healthgorilla.com/fhir/R4/StructureDefinition/hg-practitioner-login",
          "valueString": "testStaff"
        },
        {
          "url": "https://www.healthgorilla.com/fhir/R4/StructureDefinition/hg-practitioner-password",
          "valueString": "ChangeMe!"
        }
      ],
      "active": true,
      "name": [
        {
          "use": "official",
          "text": "Staff FHIR",
          "family": "FHIR",
          "given": [
            "Staff"
          ]
        }
      ],
      "telecom": [
        {
          "system": "email",
          "value": "testStaff@example.com",
          "use": "work"
        }
      ]
    }
  ],
  "active": true,
  "practitioner": {
    "reference": "#1"
  },
  "code": [
    {
      "coding": [
        {
          "system": "https://www.healthgorilla.com/administrative-role",
          "code": "officeManager",
          "display": "Office Manager"
        },
        {
          "system": "http://hl7.org/fhir/practitioner-role",
          "code": "staff",
          "display": "Staff"
        }
      ]
    }
  ]
}