NPI Portal NPI Lookup & Verification

David D. Millen, D.M.D. PC

David D. Millen, D.M.D. PC is a healthcare organization registered as Periodontics in Ansonia, CT, holding Type 2 (organization) NPI 1629005574 since 2006. The authorized official on file is David Millen, President.

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NPI 1629005574
Entity type Organization (Type 2)
Legal business name David D. Millen, D.M.D. PC
Practice address 560 MAIN STREET, Ansonia, CT, 06401
Phone 2035629700
Fax 2037826285
Enumeration date 2006-06-27
Last updated in NPPES 2016-06-21

Authorized official

Name David Millen
Title President
Phone 2037320097

Taxonomy & classification

Taxonomy code Specialty Primary License State
1223P0300X Periodontics Primary 004183 CT
Copy-ready billing details
Provider: David D. Millen, D.M.D. PC
NPI: 1629005574
Taxonomy: 1223P0300X (Periodontics)
Address: 560 MAIN STREET, Ansonia, CT, 06401

Providers at this address

NPI Name Type Specialty Location
1083689640 David Millen Individual Periodontics Ansonia, CT
1386777068 Richard Rosenfeld Individual Dentist Ansonia, CT

Verify this record

Cross-check NPI 1629005574 against the authoritative CMS record: view David D. Millen, D.M.D. PC on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is David D. Millen, D.M.D. PC?
David D. Millen, D.M.D. PC is registered in NPPES as a Periodontics (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-06-21.