1. Home
  2. Directory
  3. California
  4. San Leandro
  5. Social Worker
  6. NPI Profile

YOUJIN CHANG
NPI 1538046438
Social Worker in San Leandro, CA

Active since August 20, 2025
1100 SAN LEANDRO BLVD STE 400, SAN LEANDRO, CA 94577(510) 920-6169 Get Directions Write a Review

NPPES record last updated: August 20, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Youjin Chang NPPES

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

YOUJIN CHANG (NPI 1538046438) is an individual social worker in San Leandro, California and active in the NPI registry since August 2025.

NPPES Registry Identity

NPI1538046438
Entity TypeIndividual
Primary Taxonomy104100000X
Provider Legal NameYOUJIN CHANG
Location Address1100 SAN LEANDRO BLVD STE 400San Leandro, CA 94577-1670
Mailing Address1100 San Leandro Blvd Ste 400San Leandro, CA 94577-1670 · (510) 920-6169
Phone(510) 920-6169
Sole ProprietorNo
Enumeration DateAugust 20, 2025
NPPES CertifiedAugust 20, 2025
✔ NPI 1538046438 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
1100 SAN LEANDRO BLVD STE 400, San Leandro, CA 94577
Open in Google Maps ↗

Other Providers at the Same Location NPPES 5

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

MR. WING HONG TANG
Health and Wellness Coach
1100 SAN LEANDRO BLVD STE 400
SAN LEANDRO, CA 94577
Alameda County (510) 577-3517
ENRIQUE FERREL BS
Community Health Worker
1100 SAN LEANDRO BLVD STE 400
SAN LEANDRO, CA 94577
Alameda County (510) 213-9563
ALAMEDA COUNTY OFFICE OF DENTAL HEALTH
Clinic/Center (Dental)
1100 SAN LEANDRO BLVD STE 400
SAN LEANDRO, CA 94577
Alameda County (510) 208-5910
FROILAN LUNA ROMERO
Community Health Worker
1100 SAN LEANDRO BLVD STE 400
SAN LEANDRO, CA 94577
Alameda County (510) 381-7842
LOLA ALLEN DTM
Case Manager/Care Coordinator
1100 SAN LEANDRO BLVD STE 400
SAN LEANDRO, CA 94577
Alameda County (510) 577-3517

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 Youjin Chang's NPI number?

The NPI number for Youjin Chang is 1538046438. It was assigned to this individual provider in the NPPES registry on August 20, 2025.

Where is Youjin Chang located?

Youjin Chang practices at 1100 San Leandro Blvd Ste 400, San Leandro, CA 94577. The listed phone number is (510) 920-6169.

What is Youjin Chang's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Youjin Chang was last updated on August 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.