John T. Mather Memorial Hospital

NORTHWELL

75 North Country Road, Port Jefferson, NY 11777
621999 (NAICS 621999)

DART 1.53 73 recordable cases · 2,477 avg employees · 3,526,642 hours worked

This establishment vs. the industry

The DART rate at this establishment is below the industry median (0.6×).

This establishment: 1.53
Industry median (Blood pressure screening facilities, n=75): 2.58

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases27 Restricted-duty / transferred cases0 Other recordable cases46 Total recordable cases73 Days lost to injury820

Injury rates (per 100 FTE-year, OSHA standard)

DART rate1.53 (days away + restricted/transferred) DAFW rate1.53 (days away from work only) Total recordable rate (TRIR)4.14 (all OSHA-recordable cases) Annual average employees2,477 Total hours worked3,526,642
What these numbers mean. An OSHA-recordable case is a work-related injury or illness that resulted in death, days away from work, restricted work, transfer to another job, medical treatment beyond first aid, loss of consciousness, or significant injury diagnosed by a physician. DART rate is the OSHA-standard incidence measure — calculate it as (cases with days away + restricted/transferred) × 200,000 / hours worked. The 200,000 hours normalizes to 100 full-time-equivalent workers over a year. National average DART across all industries is around 1.7; high-risk industries (skilled nursing, warehousing, courier) routinely exceed 5.

Source: OSHA ITA 300A Summary Data, calendar year 2024 filings (downloaded 2026-05-23).

OSHA Lookup · workplace-injury data from OSHA ITA 300A 2024 · About / methodology