Dr. Divya Mahajan, a board-certified rheumatologist, will join Harrington Physician Services in February. She will see patients at 94 South St. in Southbridge. Mahajan most recently practiced at Southcoast Physicians Group in Fall River. She received her medical degree from Kasturba Medical College, Mangalore, in Karnataka, India, and completed a residency at Mount Sinai in the Bronx, New York.