The ACGME sets standards for the program at large. They won't care about a single resident experience. When IM PGY-3's get the reisdent survey, they will be asked about their educational experience and one of those (many) questions will be whether your Geri experience was adequate. Again, the ACGME won't care about your individual answer, just the overall score for the program.
All that said, the program can set any requirements they deem fit.