NPI Portal NPI Lookup & Verification

Mr. Dennis Eugene Clark, DDS

Mr. Dennis Eugene Clark is a General Practice Dentistry provider (Dentist) practicing in Merced, CA, registered in the NPPES registry with NPI 1780778050 since 2006. The credential DDS stands for Doctor of Dental Surgery.

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NPI 1780778050
Entity type Individual (Type 1)
Name Mr. Dennis Eugene Clark
Credential DDS
Sex Male
Practice address 2121 LEEDS RD, Merced, CA, 95340
Phone 2093835561
Fax 2093835561
Enumeration date 2006-10-03
Last updated in NPPES 2015-10-16

Taxonomy & licenses

Taxonomy code Specialty Primary License State
1223G0001X General Practice Dentistry Primary 36073 CA
1223G0001X General Practice Dentistry Secondary DE00006780 WA

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

Copy-ready billing details
Provider: Dennis Clark, DDS
NPI: 1780778050
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 2121 LEEDS RD, Merced, CA, 95340

Verify this record

Cross-check NPI 1780778050 against the authoritative CMS record: view Mr. Dennis Eugene Clark 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 specialty is Dennis Clark?
Dennis Clark 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-10-16.