Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ruth Diaz
Counselor in Haverhill, MA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326523069
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Registry record
Entity type Individual (Type 1)
Name Ruth Diaz
Sex Female
Practice address 26 Parkridge Rd Ste 2b, Haverhill, MA, 01835
Phone (978) 522-0821
Enumeration date Sep 28, 2018
Last updated in NPPES Sep 28, 2018
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 Ruth Diaz practice?
The practice location on file with NPPES is in Haverhill, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ruth Diaz?
The National Provider Identifier (NPI) for Ruth Diaz is 1326523069, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-28.