Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Sandra Rae Diener, LICSW
Social Worker in Chelsea, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1467477513
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Registry record
Entity type Individual (Type 1)
Name Ms. Sandra Rae Diener
Credential LICSW
Sex Female
Practice address 301 Broadway, Chelsea, MA, 02150
Phone (617) 889-3300
Enumeration date Jul 12, 2006
Last updated in NPPES Mar 26, 2010
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
Where does Sandra Diener practice?
The practice location on file with NPPES is in Chelsea, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sandra Diener?
The National Provider Identifier (NPI) for Sandra Diener is 1467477513, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Christopher Harmon Psychiatry Physician · Chelsea, MA NPI 1710912779 Shannon Wiedenman Social Worker · Chelsea, MA NPI 1649384215 Deborah Shea Clinical Social Worker · Chelsea, MA NPI 1295840866 David Selden Clinical Social Worker · Chelsea, MA NPI 1982705729 Matthew Sweeney Clinical Social Worker · Chelsea, MA NPI 1508954215 Marissa Rumasuglia Social Worker · Chelsea, MA NPI 1407944515 Barbara Wilson Clinical Social Worker · Chelsea, MA NPI 1750457636 Adilson Horta Mental Health Counselor · Chelsea, MA NPI 1508917220
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-26.