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DR. STEPHEN YOON
NPI 1801756531
Counselor - School in Garden Grove, CA

Active since November 14, 2025
10331 STANFORD AVE, GARDEN GROVE, CA 92840(714) 663-6233 Get Directions Write a Review

NPPES record last updated: November 19, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Nov 19, 2025, Nov 14, 2025 (2 updates tracked since 2025).

About Dr. Stephen Yoon NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. STEPHEN YOON (NPI 1801756531) is an individual school provider in Garden Grove, California and active in the NPI registry since November 2025.

NPPES Registry Identity

NPI1801756531
Entity TypeIndividualMale
Primary Taxonomy101YS0200X
Provider Legal NameDR. STEPHEN YOON
Location Address10331 STANFORD AVEGarden Grove, CA 92840-6351
Mailing Address10331 Stanford AveGarden Grove, CA 92840-6351 · (714) 663-6233
Phone(714) 663-6233
Sole ProprietorYes
Enumeration DateNovember 14, 2025
Last NPPES UpdateNovember 19, 20252 updates tracked since enumeration
NPPES CertifiedNovember 14, 2025
✔ NPI 1801756531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · SchoolBehavioral Health & Social Service Providers
Taxonomy Code101YS0200X
10331 STANFORD AVE, Garden Grove, CA 92840
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA DINH LCSW
Social Worker (Clinical)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000
MRS. GIULIANA VALDOVINOS LCSW
Social Worker (Clinical)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000
CASEY JONES
Psychologist (Clinical Child & Adolescent)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000
NICOLE GLEESON LCSW
Social Worker (Clinical)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000
BRIANNA MARIE WRIGHT
Social Worker (Clinical)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 630-6000
CELESTE RAMIREZ
Social Worker
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000
FERNANDO BARBA JR LCSW
Social Worker (Clinical)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000
SANDRA MACUILT
Social Worker (Clinical)
10331 STANFORD AVE
GARDEN GROVE, CA 92840
Orange County (714) 663-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Yoon's NPI number?

The NPI number for Stephen Yoon is 1801756531. It was assigned to this individual provider in the NPPES registry on November 14, 2025.

Where is Stephen Yoon located?

Stephen Yoon practices at 10331 Stanford Ave, Garden Grove, CA 92840. The listed phone number is (714) 663-6233.

What is Stephen Yoon's specialty?

The primary specialty registered for this NPI is Counselor, specializing in School, with taxonomy code 101YS0200X.

When was this NPI record last updated?

The NPPES record for Stephen Yoon was last updated on November 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.