| Business | Phone |
| Long Island Commercial Bank 720 Grand Blvd, Deer Park 11729 | (631) 243-0888 |
| Bank Of America 1979 Deer Park Ave, Deer Park 11729 | (631) 242-3630 |
| Bank Of New York 1948 Deer Park Ave, Deer Park 11729 | (631) 243-6380 |
| Chase 140 Bay Shore Rd, Deer Park 11729 | (516) 935-9935 |
| Chase 615 Grand Blvd, Deer Park 11729 | (516) 935-9935 |
| Citibank 400 Commack Rd, Deer Park 11729 | (631) 667-2312 |
| North Fork Bank 375 Commack Rd, Deer Park 11729 | (631) 595-2800 |
| First National Bank 60 E Industry Ct, Deer Park 11729 | (631) 243-2600 |
| Washington Mutual 415 Commack Rd, Deer Park 11729 | (631) 667-2685 |