What is Stephen Yoon's NPI number?

Stephen Yoon's National Provider Identifier (NPI) is 1801756531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stephen Yoon's specialty?

Stephen Yoon is listed in the NPPES registry with a primary specialty of School Counselor (Behavioral Health & Social Service Providers).

Where is Stephen Yoon located?

Stephen Yoon's practice location on file with NPPES is 10331 Stanford Ave, Garden Grove, CA 92840-6351.

What is Stephen Yoon's phone number?

The practice phone number listed in the NPPES registry for Stephen Yoon is (714) 663-6233.

Is Stephen Yoon's NPI active?

Yes — Stephen Yoon's NPI (1801756531) is active in the NPPES registry as of the last update on 2025-11-19.

IndividualActive

Stephen Yoon

NPI 1801756531 · School Counselor · Garden Grove, CA

Stephen Yoon is a School Counselor provider in Garden Grove, CA (NPI 1801756531).

Provider details

NPI number: 1801756531
Entity type: Individual
Primary specialty: School CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

School CounselorPrimary101YS0200X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

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

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% 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

10331 Stanford Ave

Garden Grove, CA 92840-6351

Phone: (714) 663-6233

Street-level locationGet directions

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Mailing address