Dr. Eugene Jay Klein, DDS

Dr. Eugene Jay Klein is a Dentist provider (Dentist) practicing in Keene, NH, registered in the NPPES registry with NPI 1003997917 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum

NPI	1003997917
Entity type	Individual (Type 1)
Name	Dr. Eugene Jay Klein
Credential	DDS
Sex	Male
Practice address	222 WEST STREET, COLONY MILL MARKETPLACE, Keene, NH, 03431
Phone	6033570500
Fax	6033575300
Enumeration date	2006-10-18
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
122300000X	Dentist	Primary	1002388	NH

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Eugene Klein, DDS
NPI: 1003997917
Taxonomy: 122300000X (Dentist)
Address: 222 WEST STREET, COLONY MILL MARKETPLACE, Keene, NH, 03431

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1932178886	Kevin Lyness	Individual	Marriage & Family Therapist	Keene, NH
1215906177	Michael Foot	Individual	Psychologist	Keene, NH
1972572857	Barbara Bryce	Individual	Psychologist	Keene, NH
1033188057	Emily Defrance	Individual	Psychologist	Keene, NH

Verify this record

Cross-check NPI 1003997917 against the authoritative CMS record: view Dr. Eugene Jay Klein 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

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 Eugene Klein?

Eugene Klein 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.