- 2018/2019 Named a Top Workplace on Long Island by Newsday
- Get With The Guidelines-Stroke Gold Plus Quality Achievement Award 2019/2020
- Accredited by The Joint Commission and a recipient of the Commission’s Gold Seal of Approval™ for demonstrating compliance with its national state-of-the-art standards for health care quality and safety in hospitals
- Recognized by the New York Department of Health as a provisional Level III adult trauma center, the first one on the East End of Long Island
- Accredited by the American College of Radiology in all imaging diagnostic tests (MRI, Breast MRI, CT, Ultrasound, Nuclear Medicine) and is recognized as a Breast Imaging Center of Excellence
- Cardiac Rehabilitation program certified by the American Association of Cardiovascular and Pulmonary Rehabilitation (AACVPR)
- Regional Dialysis Center is a 5-time recipient of the IPRO 5-Diamond Award for Patient Safety
- David E. Rogers, MD Center recipient of the Peter M. Fox Excellence in AAHIVM Credentialing Award from the American Academy of HIV Medicine
- Joint Commission certified Palliative Care program
- Designated a “Leader in LGBT Healthcare Equality” by the Human Rights Campaign (HRC) Foundation in 2020, the educational arm of the country’s largest lesbian, gay, bisexual and transgender (LGBT) civil rights organization
- Recipient of the Get With The Guidelines® – Stroke Gold-Plus Quality Achievement Award from the American Heart Association/American Stroke Association
- HIMSS Analytics Stage 6 designation for use of the Electronic Medical Record Adoption Model
- Recipient of the American Society for Gastrointestinal Endoscopy (ASGE) Quality Recognition Award
- 10-time winner of the American Association for Respiratory Care “Quality Respiratory Care Recognition Award”
- Named one of the nation’s “Most Wired Hospitals” for six consecutive years
- Bariatric Surgery Center of Excellence designation by the Surgical Review Corporation
- American Diabetes Association national recognition of the Hospital's "Living With Diabetes" program
- Member institution, New York College of Osteopathic Medicine Educational Consortium (NYCOMEC, Corp.)
- Kathleen D. Allen Maternity Center is a recipient of the 2018/2019 Healthgrades Women's Care Awards for labor and delivery.
- Kathleen D. Allen Maternity Center has been a Healthgrades 5-star recipient for vaginal delivery and C-section delivery for four consecutive years.
- Westhampton Primary Care and Shinnecock Indian Health Clinic certified by National Committee for Quality Assurance as Patient-Centered Medical Homes (Level 3)