ROCKVILLE, Md. & WESTBURY, N.Y.--(BUSINESS WIRE)--The Medical Society of the State of New York (MSSNY), New York state's principal non-profit professional organization for physicians, residents and medical students, and DrFirst, a leading provider of healthcare IT solutions, announced today that MSSNY has selected DrFirst as its official and recommended provider of e-prescribing software to its membership. MSSNY’s decision to search for, evaluate and officially endorse an e-prescribing vendor w