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

Harold J Pyun, MSW

Individual provider Social Worker · NPI 1356613053

Harold J Pyun, MSW is a Social Worker in Fullerton, California. Practices as a sole proprietor. Registered with an NPI since 2012.

In the registry since
2012
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

2258 Rosecrans Ave
Fullerton, CA 92833-1742
Phone: (818) 984-3757
Fax: (714) 441-0718
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1356613053
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorYes
NPI enumeratedJanuary 27, 2012
Last updated in NPPESJanuary 27, 2012
Mailing address2258 Rosecrans Ave, Fullerton, CA 92833-1742

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