There's no single "Mass College" that offers a pharmacy program. Massachusetts has several colleges and universities with pharmacy programs, but the length of their Doctor of Pharmacy (PharmD) programs is generally
4 years. This is consistent across most accredited pharmacy schools in the United States.
To find the exact information, you'll need to specify which college or university in Massachusetts you're interested in (e.g., Massachusetts College of Pharmacy and Health Sciences). Their websites will have the most accurate and up-to-date information on program length and requirements.