Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cynthia F Csillag, LCSW LCADC

Addiction (Substance Use Disorder) Counselor in New Brunswick, NJ · enumerated 2007.

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

National Provider Identifier

1639222045

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Registry record

Entity type Individual (Type 1)

Name Ms. Cynthia F Csillag

Credential LCSW LCADC

Sex Female

Practice address 155 Livingston Avenue, New Brunswick, NJ, 08901

Phone (732) 247-9171

Fax (908) 253-8448

Enumeration date Jan 19, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 37LC00100000 (NJ) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 44SC05033400 (NJ) Secondary

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

Where does Cynthia Csillag practice?

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

What is the NPI number for Cynthia Csillag?

The National Provider Identifier (NPI) for Cynthia Csillag is 1639222045, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.