What is John Namgoong's NPI number?

John Namgoong's National Provider Identifier (NPI) is 1578299632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Namgoong's specialty?

John Namgoong is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).

Where is John Namgoong located?

John Namgoong's practice location on file with NPPES is 483 N Aviation Blvd Bldg 210, El Segundo, CA 90245-2808.

What is John Namgoong's phone number?

The practice phone number listed in the NPPES registry for John Namgoong is (310) 653-6844.

Is John Namgoong's NPI active?

Yes — John Namgoong's NPI (1578299632) is active in the NPPES registry as of the last update on 2025-09-16.

IndividualActive

John Namgoong, DDS

NPI 1578299632 · Dentist · El Segundo, CA

John Namgoong, DDS is a Dentist provider in El Segundo, CA (NPI 1578299632).

Provider details

NPI number: 1578299632
Entity type: Individual
Primary specialty: DentistDental Providers
Credential: DDS
Sex: Male
Sole proprietor: No
License: 12961768-9921 (UT)

Specialties & taxonomies

DentistPrimary122300000XLicense 12961768-9921 (UT)
Dental Providers

Profile Score

Established profile(60/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

483 N Aviation Blvd Bldg 210

El Segundo, CA 90245-2808

Phone: (310) 653-6844

Street-level locationGet directions

More CA providers

Mailing address