A. Per Diem. Occupational Therapy Assistant , (COTA/OTA), position is now available in our sub-acute/skilled nursing rehab department located in. Marlborough, MA. Once hired as part of the PTS team, you may join as many of our other local PRN rosters as you wish. . Facility is a bustling 144 bed sub-acute/skilled nursing facility in Marlborough, MA. Specializing in the geriatric population in both sub-acute and long-term care domains. Large, beau...