identification, and data enhancement services. Folio Associates, a predecessor to FolioMed, was founded in the early 1970's by two advertising executives, Leon and Patricia Wirtenberg. Recognizing a need in the medical community for a directory listing all the physicians in Massachusetts they launched the first printed Folio’s Physician Directory of Massachusetts in 1972.

The original Folio directory listed physicians by name and included address and phone number, but because of the incompleteness and inaccuracy of any public records at the time, all the information had to be verified by sending individual Physician Proof Forms. And because there were several narrowly focused physician lists in the early days that concentrated on a particular medical specialty or metro area, Folio developed the approach of providing a complete census of all practicing physicians so that the customer was confident that a physician was included. Folio has maintained these two operating principles throughout its history (1) all information about physicians is verified and (2) Folio data is a comprehensive census of all practicing physicians in a state.