Click on the links below to jump to each specialty:
| ADDICTION MEDICINE | OFFICE LOCATION | PHONE NUMBER | |
| Allen L. Fein, MD | 365 County Road 39A, Suite 11, Southampton | (631) 283-6446 | |
| Southold Family Medicine | 44360 County Road 48, Southold PO Box 478 |
(631) 734-8742 | |
| ALLERGY AND ASTHMA | OFFICE LOCATION | PHONE NUMBER | |
| Long Island Allergy and Asthma | 2500 Nesconset Highway, Building 17A, Stony Brook | (631) 751-6262 | |
| ANESTHESIOLOGY | OFFICE LOCATION | PHONE NUMBER | |
| East End Anesthesiologists | 265 Herrick Road, Southampton | ||
| CARDIOLOGY | OFFICE LOCATION | PHONE NUMBER | |
| Cardiovascular and Lifestyle Medicine | 57 Southern Boulevard, Suite 3, Nesconset 280 Union Avenue, Holbrook |
(631) 307-9737 | |
| Heart Associates of Long Island | 1320 Stony Brook Road, Building D, Suite 100, Stony Brook | (631) 941-2273 | |
| North Suffolk Cardiology | 66 Commack Road, Suite 306, Commack 45 Research Way, Suite 108, East Setauket 1741-A North Ocean Avenue, Medford 745 Route 25A, Suite F, Rocky Point |
(631) 941-2000 | |
| ENDOCRINOLOGY | OFFICE LOCATION | PHONE NUMBER | |
| Long Island Diabetes & Endocrinology | 421 Deer Park Avenue, Babylon | (631) 941-1000 | |
| Stony Brook Endocrine Consultants | 200 Motor Parkway, Suite C-16, Hauppauge 1500 Route 112, Building 2, Suite B, Port Jefferson Station 47 Commerce Drive, Suite 1, Riverhead |
(631) 638-4933 | |
| FAMILY MEDICINE | OFFICE LOCATION | PHONE NUMBER | |
| Allen L. Fein, MD | 365 County Road 39A, Suite 11, Southampton | (631) 283-6446 | |
| Mattituck Family Medicine | 10095 Main Road, Mattituck | (934) 213-4499 | |
| Nassau Suffolk Medical Practice | 120 Route 109, West Babylon | (631) 422-3636 | |
| North Country Primary Medical Care | 43 Radio Avenue, Miller Place | (631) 821-8911 | |
| North Suffolk Family Medical Care | 4 Technology Drive, Suite 210, East Setauket | (631) 331-1506 | |
| Rocky Point Family Medical Care | 170 Route 25A, Rocky Point | (934) 213-4309 | |
| Southold Family Medicine | 44360 County Road 48, Southold PO Box 478 |
(631) 734-8742 | |
| FERTILITY | OFFICE LOCATION | PHONE NUMBER | |
| Island Fertility | 500 Commack Road, Suite 202, Commack | (631) 638-4600 | |
| GERIATRIC MEDICINE | OFFICE LOCATION | PHONE NUMBER | |
| NAD Medical Services at Peconic Landing | 1600 Brecknock Road, Greenport | (631) 749-5910 | |
| Partners in Primary Care |
267 East Main Street, Building C, Smithtown |
(631) 418-8069 | |
| INFECTIOUS DISEASE | OFFICE LOCATION | PHONE NUMBER | |
| Stony Brook Medical Associates | 2500 Nesconset Highway, Building 11D, Stony Brook | (631) 689-7899 | |
| INTERNAL MEDICINE | OFFICE LOCATION | PHONE NUMBER | |
| All Inclusive Primary Care | 300 East Main Street, Suite 6, Smithtown | (631) 257-5290 | |
| East Moriches Primary Care | 41 Bay Avenue, East Moriches | (631) 878-1543 | |
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5036 Jericho Turnpike, Suite 207, Commack |
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| NAD Medical Services at Peconic Landing | 1600 Brecknock Road, Greenport | (631) 749-5910 | |
| North Country Primary Medical Care | 43 Radio Avenue, Miller Place | (631) 821-8911 | |
| Partners in Primary Care |
267 East Main Street, Building C, Smithtown |
(631) 418-8069 | |
| Stony Brook Extended Care | 23 South Howell Avenue, Suite A, Centereach 54 Commerce Drive, Suite 5, Riverhead |
(631) 542-0550 (631) 740-9181 |
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| NEPHROLOGY | OFFICE LOCATION | PHONE NUMBER | |
| Renal Consultants of Long Island | 200 Belle Terre Road, Suite 200, Port Jefferson | (631) 476-1010 | |
| NEUROLOGY | OFFICE LOCATION | PHONE NUMBER | |
| Sound Neurology | 170 Route 25A, Rocky Point | (631) 331-4377 | |
| OBSTETRICS AND GYNECOLOGY | OFFICE LOCATION | PHONE NUMBER | |
| Argen Medical | 5225 Nesconset Highway, Building 14, Suite 70, Port Jefferson Station | (631) 331-8777 | |
| Hamptons Gynecology and Obstetrics | 595 Hampton Road, Southampton 74 Commerce Drive, Suite 1, Riverhead 183 West Montauk Highway, Hampton Bays 600 Montauk Highway, Suite C, Center Moriches |
(631) 283-0918 (631) 727-3422 (631) 723-2225 (631) 638-7820 |
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23 South Howell Avenue, Suite A, Centereach | (934) 213-4570 | |
| Smithtown Women's Health | 200 East Main Street, Suite 1E, Smithtown 309 E. Main Street, Suite 101, Smithtown |
(631) 265-4567 | |
| South Bay OB/GYN | 320 Montauk Highway, West Islip | (631) 587-2500 | |
| Stony Brook Extended Care | 23 South Howell Avenue, Suite A, Centereach | (631) 542-0550 | |
| Stony Brook Gynecology and Obstetrics | 200 Main Street, Suite 2, Setauket 774 Sycamore Avenue, Bohemia 333 Route 25A, Suite 30, Rocky Point |
(631) 751-9595 (631) 218-9595 (631) 821-4444 |
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| OBESITY MEDICINE | OFFICE LOCATION | PHONE NUMBER | |
| North Country Primary Medical Care | 43 Radio Avenue, Miller Place | (631) 821-8911 | |
| OPHTHALMOLOGY | OFFICE LOCATION | PHONE NUMBER | |
|
2500 Nesconset Highway, 17B, Stony Brook |
(631) 246-9140 | ||
| ORTHOPEDICS | OFFICE LOCATION | PHONE NUMBER | |
| Long Island Orthopedic Surgery and Sports Medicine | 309 E. Main Street, Suite 102, Smithtown | (631) 360-2200 | |
| North Fork Orthopaedic and Sports Medicine |
10095 Main Road, Mattituck |
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| PEDIATRICS | OFFICE LOCATION | PHONE NUMBER | |
| Farzana Ahsan, MD, FAAP | 1 Lambert Avenue, Mastic | (631) 281-4070 | |
| Mid Island Pediatric Associates | 850 Fulton Street, Suite 4, Farmingdale | (516) 454-8525 | |
| Southampton Pediatric Associates | 325 Meeting House Lane, Building 2, Suite J, Southampton 5 Squiretown Road, Hampton Bays |
(631) 283-7733 (631) 728-5300 |
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| Stony Brook Pediatrics of Sayville | 3920 Veterans Memorial Highway, Suite 8, Bohemia 11716 | (631) 563-8190 | |
| PHYSIATRY | OFFICE LOCATION | PHONE NUMBER | |
| East End Spine and Sports Medicine | 222 Manor Place, Greenport 182 West Montauk Highway, Building B, Suite C, Hampton Bays |
(631) 430-2090 | |
| Long Island Orthopedic Surgery and Sports Medicine | 309 E. Main Street, Suite 102, Smithtown | (631) 360-2200 | |
| PSYCHIATRY | OFFICE LOCATION | PHONE NUMBER | |
| All Island Behavioral Health | 3771 Nesconset Highway, Suite 212, South Setauket | (631) 689-5390 | |
| PULMONOLOGY | OFFICE LOCATION | PHONE NUMBER | |
| New York Pulmonary Consultants | 1500 Route 112, Building 2, Suite B, Port Jefferson Station 47 Commerce Drive, Suite 1, Riverhead 200 Motor Parkway, Suite C-16, Hauppauge |
(631) 978-7633 | |
| SLEEP MEDICINE | OFFICE LOCATION | PHONE NUMBER | |
| New York Pulmonary Consultants |
47 Commerce Drive, Suite 1, Riverhead |
(631) 978-7633 | |
| Stony Brook Endocrine Consultants | 200 Motor Parkway, Suite C-16, Hauppauge | (631) 638-4933 |