| Suffolk County | Nassau County | The Hamptons | 
| Levy DR. Maurice PHD 143 East Park Avenue In Southshore Couples & Famil Long Beach NY, 11561 (516) 642-7392 | Liebman DR. Paul C PSYD 1229 Broadway Hewlett NY, 11557 (516) 295-2626 | ||
| Life is Beautiful Family Chiropractic 73 Deer Park Ave Babylon NY, 11702 (631) 376-0434 | Lindner MS. Caryn LCSW 23 Spector Ln Plainview NY, 11803 (516) 932-7446 | ||
| Lintvin Karen Davern LCSW 140 E Main St Huntington NY, 11743 (631) 742-4470 | Liotta DR. C Ben EDD LCSW 2061 Deer Park Ave Deer Park NY, 11729 (631) 667-8309 | ||
| Lipton DR. Donna K PSYD 55 Sandy Hollow Rd Northport NY, 11768 (631) 261-3958 | Logue MS. Sue LCSW-R 1050 Hallock Ave Port Jefferson Station NY, 11776 (631) 767-1544 | ||
| Long Island Breast Care 1010 Northern Blvd Great Neck NY, 11021 (516) 487-8888 Visit Website | Lopinto DR. Lisa PHD 631 Montauk Hwy West Islip NY, 11795 (631) 398-3494 | ||
| Lorber MS. Sharon M MS LCSW-R 30 Bounty Ln Jericho NY, 11753 (516) 932-5161 | Lotardo Salvatore DDS 239 Smithtown Blvd Nesconset NY, 11767 (866) 993-3931 | ||
| Lotardo Salvatore DDS 54 Commerce Ave Riverhead NY, 11901 (866) 993-9516 | Louca MS. Sirka LCSW-R 384 Mark Tree Rd East Setauket NY, 11733 (631) 689-2582 | ||
| Lutwin DR. David R DSW LCSW-R 115 W Olive St Long Beach NY, 11561 (516) 889-9351 | Macari DR. Andrea M PHD 1010 Northern Blvd Great Neck NY, 11021 (516) 816-1425 | ||
| Macari DR. Andrea M. PHD 1010 Northern Blvd Great Neck NY, 11021 (516) 816-1425 | Machado MS. Debra MSW LCSW 117 Pilgrim Ln Westbury NY, 11590 (516) 333-6626 | ||
| Maddalena DR. Tara Anne PSYD 256 Main St Northport NY, 11768 (631) 901-2640 | Malamood Helayne LCSW 45 N Station Plz Great Neck NY, 11021 (516) 829-2661 | ||