Find an organization's NPI
5 active organization NPIs are registered under names beginning "Dianon Systems". Each location can bill under its own NPI, so add the city to find the one you need.
1 to 5 of 5, exact name first
- Dianon Systems, INC1962480608
Clinical Medical Laboratory · Shelton, CT · issued Jan 4, 2006
- Dianon Systems INC1497437446
Clinical Medical Laboratory · Woodbridge, CT · issued Aug 1, 2023
- Dianon Systems INC1952388902
Clinical Medical Laboratory · Tampa, FL · issued Dec 29, 2005
- Dianon Systems INC1245216357
Clinical Medical Laboratory · Uniondale, NY · issued Dec 20, 2005
- Dianon Systems INC1912997354
Clinical Medical Laboratory · Oklahoma City, OK · issued Oct 26, 2005
Source: CMS NPPES monthly file of Aug 9, 2026, organization (Type 2) records.