Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Diane Haggas, RDH
Dental Hygienist in Danbury, CT · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598749582
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Registry record
Entity type Individual (Type 1)
Name Mrs. Diane Haggas
Credential RDH
Sex Female
Practice address 63 Brook Beaver, Danbury, CT, 06810
Phone (203) 790-2812
Enumeration date Dec 2, 2005
Last updated in NPPES Jul 8, 2007
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 Diane Haggas?
The National Provider Identifier (NPI) for Diane Haggas is 1598749582, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diane Haggas practice?
The practice location on file with NPPES is in Danbury, CT. 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.