Sure, I can guide you on how to model these permissions using Ory's Permission Language (OPL). Firstly, you need to understand that a permission model is a set of rules that define which relations are checked in the database during a permission check. The permission model tells Ory Permissions what to check in the database. Here's a general process you can follow to define your permission model: 1. Create a list of objects. In your case, objects could be

Appointment

,

Patients

,

Billing

,

Claims

, etc. 2. Make a list of relationships each object has to other objects. In a database, those would be associations expressed with foreign keys. 3. Define each relation in the OPL. 4. Make a list of permissions that you want to check. These are the permissions you've listed. 5. Define each permission in the OPL. 6. Test your permission model. For example, if you have a user

Bob

who is an

admin

and you want to check if

Bob

has the permission to

Create appointment

, you would ask Ory Permissions:

is User:Bob allowed to create on Appointment:X

. The system checks how Bob could have the

create

permission, and then checks if Bob is an admin. Remember, designing a permission model is a complex task. Ory Permissions and the OPL, as a subset of TypeScript, provide a streamlined approach to permissions with the benefit of being processed by a fast, global permission engine. For more details, you can refer to the [Ory Permission Language specification](https://www.ory.sh/docs/keto/reference/ory-permission-language) and the guide on [how to create a permission model](https://www.ory.sh/docs/keto/modeling/create-permission-model).