Apply to Dentist, Dental Hygienist, Dental Assistant and more! We are hiring dental assistants now for part-time and full-time positions!We open at 7 AM seven days a week, 365 days a year—including holidays—so we can schedule appointments that fit your needs at our Philadelphia office. You can visit any dentist that signs up with your MCO. Simply call 1-888-896-1427, enter your zip code, and our support team will schedule an emergency appointment immediately.