| Business | Phone |
| Clinica Medica Diaz 9675 Monte Vista Ave, Montclair 91763 | (909) 624-2242 |
| Montclair Dialysis Center 5050 Palo Verde St # 100, Montclair 91763 | (909) 625-0339 |
| Ontario Medical Group 10126 Central Ave # A, Montclair 91763 | (909) 482-1600 |
| Urgent Medical Care 8891 Central Ave, Montclair 91763 | (909) 625-4849 |