Can the MAXREFDES117 be interfaced with the MAX32620FTHR board?

Yes, the MAXREFDES117 can be interfaced to the MAX32620FTHR board which has the necessary I2C interface to communicate with the pulse oximetry sensor present on the MAXREFDES117 board. Further, the downloadable code for the MBED platform (under the firmware files for the MAXREFDES117) can be adapted for the FTHR board by updating the I2C pin assignments.