Yes, stereo isomers are differentiate by NMR spectroscopy. Actually, Stereo isomers are the basically different arrangement of atoms around the chiral carbon. This results the shifting of chemical shift on deshieding and shielding region in NMR.

http://www.farma.ku.dk/uploads/media/Lecture_2_NMR_and_chirality_2012.pdf

For detailed understanding read a book “Introduction to Spectroscopy” by Donald L. Pavia. In this book particularly on page number 252, the spectra of diastereotopic systems are very nicely explained (Fourth edition of the book).

enantiomers are indistinguishability by NMR without optically active solvent also called a chiral derivatizing agent (CDA). The first CDA was (α-methoxy-α-(trifluoromethyl)phenylacetic acid) (MTPA also known as Mosher's acid)

My Friend,

You would need to add a chiral shift reagent to distinguish.