Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Kacy Sung Hyun Yoo, LMSW

Social Worker in New York, NY · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801301684

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Registry record

Entity type Individual (Type 1)

Name Miss Kacy Sung Hyun Yoo

Credential LMSW

Sex Female

Practice address 2090 Adam Clayton Powell Jr Blvd Fl 4, New York, NY, 10027

Phone (212) 553-6708

Enumeration date Dec 3, 2017

Last updated in NPPES Dec 3, 2017

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 090245-1 (NY) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Kacy Sung Hyun Yoo?

The National Provider Identifier (NPI) for Kacy Sung Hyun Yoo is 1801301684, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kacy Sung Hyun Yoo practice?

The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-03.