Dentists Available forms for current Horizon Dental providers Change Request Forms - Provider File Info ID: 32431 Claim Form - Dental ID: 7902 Credentialing Application: Existing Practice ID: 32439 Dental - Patient Encounter Form ID: 2954 Dental Office Change Request Form ID: 32430 Horizon Dental Choice Direct Referral and Referral Exception Form ID: 32278 National Provider Identifier (NPI) Collection Form - Dental Group/Practice ID: 19708 National Provider Identifier (NPI) Collection Form - Individual Dentist ID: 19707 New Jersey Orthodontic Evaluation HLD (NJ-Mod2) Index Form