Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Henry Irving Seemann, DMD
Dentist in Ridgefield, CT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942419510
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Registry record
Entity type Individual (Type 1)
Name Dr. Henry Irving Seemann
Credential DMD
Sex Male
Practice address 63 Copps Hill Rd, Ridgefield, CT, 06877
Phone (203) 431-4344
Fax (203) 431-3236
Enumeration date May 21, 2007
Last updated in NPPES Jul 8, 2007
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
What is the NPI number for Henry Seemann?
The National Provider Identifier (NPI) for Henry Seemann is 1942419510, a Type 1 (individual) record in the CMS NPPES registry.
Where does Henry Seemann practice?
The practice location on file with NPPES is in Ridgefield, CT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.