NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Eric Martin Johnsen, D.M.D.

General Practice Dentistry in Portsmouth, RI · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1598883092

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Eric Martin Johnsen
Credential D.M.D.
Sex Male
Practice address 880 E Main Rd, Portsmouth, RI, 02871
Fax (401) 683-5855
Enumeration date Mar 26, 2007
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DEN 1945 (RI) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier Type State Issuer
EJ01259 Medicaid RI -

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 → Validate an NPI →

Frequently asked questions

What specialty is Eric Johnsen?
Eric Johnsen is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.