Dr. Greg W Cooper, DDS

Dr. Greg W Cooper is a General Practice Dentistry provider (Dentist) practicing in Los Alamitos, CA, registered in the NPPES registry with NPI 1912033440 since 2007. The credential DDS stands for Doctor of Dental Surgery. Practices at Carol Ann R. Caesar, Psychologist Apc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1912033440
Entity type	Individual (Type 1)
Name	Dr. Greg W Cooper
Credential	DDS
Sex	Male
Practice address	Los Alamitos, CA, 90720
Phone	7148270206
Enumeration date	2007-02-26
Last updated in NPPES	2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	25497	CA

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

Copy-ready billing details

Provider: Greg Cooper, DDS
NPI: 1912033440
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: Los Alamitos, CA, 90720

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1891867230	Betty Jorgenson	Individual	Social Worker	Los Alamitos, CA
1467596411	Elsa Cabrera	Individual	Child & Adolescent Psychiatry Physician	Los Alamitos, CA
1427469600	Carol Ann R. Caesar, Psychologist Apc	Organization	Clinic/Center	Los Alamitos, CA

Verify this record

Cross-check NPI 1912033440 against the authoritative CMS record: view Dr. Greg W Cooper 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 Greg Cooper?

Greg Cooper 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 2007-07-08.