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

Mr. Gary S. Brennan, LPC, CADC

Professional Counselor in Randolph, NJ · enumerated 2013 · practices at Gary S Brennan Lpc Cadc Ncc Psychological and Addiction Services LLC.

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

National Provider Identifier

1477891745

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Registry record

Entity type Individual (Type 1)

Name Mr. Gary S. Brennan

Credential LPC, CADC

Sex Male

Practice address Randolph, NJ, 07869

Phone (973) 796-8322

Fax (973) 366-2747

Enumeration date Jan 22, 2013

Last updated in NPPES Jan 22, 2013

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 37CA00033700 (NJ) Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 37PC00464900 (NJ) Primary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License S4065 (NJ) Secondary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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.

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Frequently asked questions

Is NPI 1477891745 active?

Yes, as of the latest NPPES snapshot, NPI 1477891745 is active (record last updated 2013-01-22).

How do I verify Gary Brennan's NPI record?

Cross-check NPI 1477891745 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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Gary S Brennan Lpc Cadc Ncc Psychological and Addiction Services LLC Professional Counselor · Randolph, NJ NPI 1619215993

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-22.