The current contract between Memorial Sloan Kettering Cancer Center and UnitedHealthcare is set to expire on June 30th. The two sides are in a dispute over reimbursement rates. Caught in the middle and unsure of what happens next, are the patients who could soon find their doctors and facilities out of network. NBC News’ Erin McLaughlin reports.  For more context and news coverage of the most important stories of our day, click here: nbcnews.com » Subscribe to NBC News: nbcnews.to/SubscribeToNBC » Watch more NBC video: bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC N...