thawk,

I can't comment re Mass General ... are they considered a pancreatic cancer center of excellence? If you are not certain they are, please consider confirming with pancan.org ... here is a link to request a list of these centers.
https://pancan.org/facing-pancreatic-cancer/patient-services/contact-us/
Here is a link to Mass General Brigham which says they are ... I don't know the specific differences between these two ...
https://www.massgeneralbrigham.org/en/patient-care/international/treatments-and-specialties/cancer-care/pancreatic-cancer#:~:text=Mass%20General%20Brigham%20has%20been,quality%20of%20life%20for%20patients.