For more recent information. or other questions, please contact Tufts Health Plan Senior Care Options (HMO. SNP) Customer Relations at 1-855-670-5934 or, for TTY users, 1-855-670-5936, Monday - Friday 8:00 a.m. - 8:00 p.m. (from Oct. 1 - Feb. 14 representatives. are available 7 days a week, 8:00 a.m. - 8:00 p.m.).