Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Joseph Ronald Bieniewicz, LMHC, CASAC

Addiction (Substance Use Disorder) Counselor in Westhampton Beach, NY · enumerated 2014.

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

National Provider Identifier

1326455882

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Registry record

Entity type Individual (Type 1)

Name Mr. Joseph Ronald Bieniewicz

Credential LMHC, CASAC

Sex Male

Practice address 7 Seafield Ln, Westhampton Beach, NY, 11978

Phone (631) 288-1122

Enumeration date Jul 16, 2014

Last updated in NPPES Jan 14, 2017

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 30088 (NY) Primary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 007650 (NY) 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

What is the NPI number for Joseph Bieniewicz?

The National Provider Identifier (NPI) for Joseph Bieniewicz is 1326455882, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joseph Bieniewicz practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-14.