Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Elizabeth Colby Mueller, DMD
Dentist in Danbury, CT · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902474521
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Registry record
Entity type Individual (Type 1)
Name Dr. Elizabeth Colby Mueller
Credential DMD
Sex Female
Practice address 289 White St, Danbury, CT, 06810
Phone (203) 743-4670
Enumeration date Jun 11, 2021
Last updated in NPPES Apr 14, 2025
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD credential
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Elizabeth Mueller?
Elizabeth Mueller is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-14.