ASP.NET Core Web API with Entity Framework Core 7 code-first -- Ignored property in base class still shows up when serialized

I am building an ASP.NET Core Web API with EF Core 7, and am using a code-first approach. One of my classes PersonType inherits from a base class that has an Id property, but I want it to ignore the Id property. I am able to prevent the Id from appearing in the PersonType SQL Server table by including .Ignore(b => b.Id); in the Fluent Api.

However - I do not want the Id to appear in the serialized JSON Get result. Right now, the Id property does appear in the serialized result, but it

This is what my class looks like.

[PrimaryKey(nameof(PersonId), nameof(Type))]
public class PersonType : BaseObject
{
    public Guid PersonId { get; set; }
    public string Type { get; set; } = string.Empty;
}

public class PersonTypeEntityTypeConfiguration : BaseObjectTypeConfiguration<PersonType>
{
    public override void Configure(EntityTypeBuilder<PersonType> builder)
    {
        builder
            .Ignore(b => b.Id);

        base.Configure(builder);
    }
}

And this is what the current serialized result looks like.

"personTypes": [
      {
        "personId": "73380575-90ff-48ba-b95e-cafaafe79c5c",
        "type": "Artist",
        "id": "00000000-0000-0000-0000-000000000000",
        "dateUtcUpdated": "2022-12-02T19:58:24.62"
      }

As you can see, the id is getting populated with the default Guid, but I don't want it to appear at all. I don't want to add [JsonIgnore] to the base class, since that would prevent it from being serialized in all of the other classes that inherit from the base class. What can I do to solve this?