Jonathan Nasser, MD Top Doctor 300 Crystal Run Rd 1st Floor F Middletown, New York, 10941 Phone: 845-703-6999 Company Name: Crystal Run Healthcare Doctor Category: Internal Medicine Profile Let this business know you found them on Hudson Valley's Online Directories. Locations Middletown 300 Crystal Run Rd 1st Floor F Middletown, New York 10941 Claim/Edit Listing