Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Seungkook Chang MD Inc

Organization Primary Care Clinic/Center · NPI 1679874309

Seungkook Chang MD Inc is a Primary Care Clinic/Center in Walnut, California. Licensed in California. Registered with an NPI since 2010.

Licensed in
CA
In the registry since
2010
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

19687 Valley Blvd
Walnut, CA 91789-2146
Phone: (909) 598-5228
Fax: (909) 598-9021
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Primary Care Clinic/Center (primary) Taxonomy 261QP2300X · Licence A35067 (CA)

Record details

NPI number1679874309
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Seung Chang — President · (909) 598-5228
Other names Walnut Medical Group
NPI enumeratedNovember 11, 2010
Last updated in NPPESNovember 11, 2010
Mailing address19687 Valley Blvd, Walnut, CA 91789-2146

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