| Unit or Department | Telephone | Fax |
| 2 South Patient Care Unit | (631) 548-6275 | |
| 3 South Patient Care Unit | (631) 548-6285 | |
| Administration | (631) 548-6063 | |
| Admitting Office | (631) 548-6010 | |
| Business Office | (631) 548-6099 | |
| Cancer Services | (631) 548-6320 | |
| Central Registration | (631) 548-6140 | |
| Communications / PR Office | (631) 548-6088 | |
| Corporate Compliance 24/7 HelpLine | (800) 894-3226 | |
| Emergency Department | (631) 548-6200 | |
| Employee Health | (631) 548-6325 | |
| External Affairs | (631) 548-6080 | (631) 548-6048 |
| Foundation | (631) 548-6080 | (631) 548-6048 |
| Front Lobby/Kanas Center | (631) 548-6929 | |
| Gift Shop | (631) 548-6022 | |
| Graduate Medical Education | (631) 548-6446 | |
| Home Health Services | (631) 548-6432 | |
| Hospital Medicine Department | (631) 548-6467 | |
| Human Resources | (631) 548-6340 | |
| Intensive Care Unit | (631) 548-6280 | |
| Laboratory | (631) 548-6140 | (631) 548-6899 |
| Main Lobby | (631) 548-6900 | |
| Maternity Unit | (631) 548-6290 | |
| Medical Affairs Office | (631) 548-6440 | (631) 727-0772 |
| Medical Records Office | (631) 548-6360 | |
| Medical Staff Development | (631) 548-6069 | |
| MRI Office | (631) 548-6217 | |
| Nurse Recruiter | (631) 548-6340 | |
| Nursing Administration | (631) 548-6190 | |
| Office of Corporate Compliance | (516) 465-8097 | |
| Office of Patient and Family Centered Care | (631) 548-6239 | |
| Outpatient Physical Therapy | (631) 727-9654 | |
| Pastoral Care | (631) 548-6025 | |
| Patient Accounts | (631) 548-6099 | |
| Patient Registration | (631) 548-6140 | |
| Pegasus House Palliative Care Program |
(631) 965-7737 |
|
| Physician Referral | (888) PBMC-123 | |
| Pre-Surgical Testing | (631) 548-6208 | |
| Quality Management | (631) 548-6121 | (631) 548-6880 |
| Radiology | (631) 548-6172 | |
| School of Radiology | (631) 548-6173 | |
| Social Services | (631) 548-6430 | |
| Spine Treatment Services | (631) 548-6310 | |
| Volunteers/Auxiliary | (631) 548-6020 |