Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Stephen Jerome Cronin, AT
Athletic Trainer in Somerville, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457387540
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Registry record
Entity type Individual (Type 1)
Name Mr. Stephen Jerome Cronin
Credential AT
Sex Male
Practice address 13 Conwell Ave, Somerville, MA, 02144
Phone (617) 628-1571
Enumeration date Jun 23, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 150 (MA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Stephen Cronin?
The National Provider Identifier (NPI) for Stephen Cronin is 1457387540, a Type 1 (individual) record in the CMS NPPES registry.
Where does Stephen Cronin practice?
The practice location on file with NPPES is in Somerville, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.