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

Mr. Sergio Antoniuk, MSW, MPA

Individual provider Social Worker · NPI 1104939917

Mr. Sergio Antoniuk, MSW, MPA is a Social Worker in Los Angeles, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

351 E Temple St
Los Angeles, CA 90012-3328
Phone: (213) 253-2677
Fax: (213) 253-5172
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence ASW 17727 (CA)

Record details

NPI number1104939917
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW , MPA
Sole proprietorNo
NPI enumeratedAugust 16, 2006
Last updated in NPPESJuly 8, 2007

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