Catholic Health Services of Long Island (Catholic Health)

Catholic Health, formerly known as Catholic Health Services of Long Island (CHS), is one of the largest healthcare systems serving residents of Nassau and Suffolk Counties. Its network includes hospitals, physician practices, urgent care and outpatient locations, home health and hospice programs, and long-term and rehabilitative care services across Long Island.
Sponsored by the Diocese of Rockville Centre, Catholic Health has a long-standing presence in communities throughout the region, including administrative operations in Rockville Centre. The system plays a major role in Long Island’s healthcare infrastructure, offering services that range from emergency and surgical care to specialty treatment, rehabilitation, hospice, and senior care.
Catholic Health is especially well known for heart care and other specialty programs, but services can vary by hospital, practice, or care center. Department hours, visiting policies, appointment requirements, and accepted insurance details may change, so it is wise to check ahead before visiting a specific location.
Hospitals Within the Catholic Health Network
Catholic Health’s five hospital campuses on Long Island include:
- St. Francis Hospital & Heart Center (Roslyn)
- Good Samaritan University Hospital (West Islip)
- Mercy Hospital (Rockville Centre)
- St. Charles Hospital (Port Jefferson)
- St. Catherine of Siena Hospital (Smithtown)
Each hospital serves a different part of the island and offers its own mix of emergency, inpatient, outpatient, maternity, rehabilitation, and specialty services while operating within a broader regional network.
Services and Specialties
Across its facilities, Catholic Health provides emergency medicine, cardiac care, cancer treatment, surgical services, orthopedics, neurosciences, women’s health, rehabilitation, and senior-focused care. St. Francis Hospital is widely recognized for cardiovascular services, and other hospitals within the system offer additional specialty programs depending on location.
Beyond hospital-based care, the system also operates outpatient centers, imaging and physician offices, home care and hospice services, and nursing and rehabilitative facilities such as Our Lady of Consolation in West Islip. Availability, referral requirements, and operating hours can differ by site.
Community Role on Long Island
In addition to clinical care, Catholic Health supports Long Island communities through health education, outreach, charitable programs, and local care access. Its hospitals and affiliated services are closely woven into the neighborhoods they serve, making the system a familiar part of the region’s day-to-day healthcare landscape.
For patients, family members, and visitors, the best approach is to confirm the exact hospital, office, or care center in advance, especially when planning a visit for a specialist appointment, outpatient procedure, or inpatient stay.
Key Facts & Details
| Category | Information |
|---|---|
| Organization | Catholic Health (formerly Catholic Health Services of Long Island) |
| Administrative Presence | Rockville Centre, New York |
| Coverage Area | Nassau County and Suffolk County, Long Island |
| Hospital Network | 5 hospitals |
| Type | Nonprofit, faith-based healthcare system |
| Affiliation | Sponsored by the Diocese of Rockville Centre |
| Services | Emergency care, heart care, cancer care, surgery, rehabilitation, home care, hospice, physician practices, and senior care |
| Notable Facility | St. Francis Hospital & Heart Center, known for cardiovascular care |
| Visitor Tip | Hours, locations, and visiting policies vary by facility; check ahead before visiting |
| Official Website | catholichealthli.org |
Catholic Health remains a major part of healthcare on Long Island. Because services, office locations, and visitor rules can change over time, use the official website or contact the specific hospital, practice, or care center directly for the most current information.
➜ Your Complete 2026 Labor Day Weekend Guide on Long Island: Where to Eat, Play & Celebrate
Are you ready for fall on Long Island? Check out these local seasonal guides:
🍎 Apple Picking 🍓 Strawberry Picking 🎃 Pumpkin Picking 👻 Haunted Houses 🍂 Farm Festivals