Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Aaron Wertheimer
Social Worker in Somerville, MA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194552216
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Registry record
Entity type Individual (Type 1)
Name Aaron Wertheimer
Sex Male
Practice address 61 Innerbelt Rd, Somerville, MA, 02143
Phone (857) 330-3669
Enumeration date Sep 14, 2024
Last updated in NPPES Sep 14, 2024
Taxonomy & licenses
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 Aaron Wertheimer?
The National Provider Identifier (NPI) for Aaron Wertheimer is 1194552216, a Type 1 (individual) record in the CMS NPPES registry.
Where does Aaron Wertheimer practice?
The practice location on file with NPPES is in Somerville, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Man Chung Chong Counselor · Somerville, MA NPI 1861172744 Lindsey Andersen Clinical Social Worker · Somerville, MA NPI 1326894668 Jill O'Gara Social Worker · Somerville, MA NPI 1902625767 Frances Kimball-Katz Social Worker · Somerville, MA NPI 1629885629 Julia Sheehan Clinical Social Worker · Somerville, MA NPI 1578368528 Lior Dahan Clinical Social Worker · Somerville, MA NPI 1861350696
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-14.