Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Nelson Anthony Tung, LCSW

Clinical Social Worker in Brooklyn, NY · enumerated 2008.

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

National Provider Identifier

1598938805

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Registry record

Entity type Individual (Type 1)

Name Mr. Nelson Anthony Tung

Credential LCSW

Sex Male

Practice address Brooklyn, NY, 11220

Phone (718) 832-1821

Enumeration date Apr 8, 2008

Last updated in NPPES Apr 8, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 071047 (NY) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1598938805 active?

Yes, as of the latest NPPES snapshot, NPI 1598938805 is active (record last updated 2008-04-08).

How do I verify Nelson Tung's NPI record?

Cross-check NPI 1598938805 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Debra Boyce-Martinez Clinical Social Worker · Brooklyn, NY NPI 1306897608 Guild for Exceptional Children, Inc. Developmentally Disabled Services Day Training Agency · Brooklyn, NY NPI 1740231836 Guild for Exceptional Children Intellectual Disabilities Intermediate Care Facility · Brooklyn, NY NPI 1740369297 Guild for Exceptional Children Inc Intellectual Disabilities Intermediate Care Facility · Brooklyn, NY NPI 1659450112 Guild for Exceptional Children Intellectual Disabilities Intermediate Care Facility · Brooklyn, NY NPI 1659440527 Guild for Exceptional Children Intellectual Disabilities Intermediate Care Facility · Brooklyn, NY NPI 1538238407 Denise Becker Occupational Therapist · Brooklyn, NY NPI 1407978109 Guild for Exceptional Children Voluntary or Charitable Agency · Brooklyn, NY NPI 1053640953

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-08.