Carrier profile · USDOT 3421018 · Updated Jun 13, 2026
SEMPER HEALTH SERVICES LLC
DBA DR SANDRA L O'BRIEN CRNP ROUNDABOUT MOBILE HEALTH
1 power unitBOWIE, MD50/100
AUTHORITY STATUS UNKNOWN
Operations & Lanes
Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.
Inspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
BOWIE, MD
Density
fewermore