NPI Portal NPI Lookup & Verification

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

Ronald E Wozniak, S.J., M.ED., LMHC, CCMHC

Mental Health Counselor in Weston, MA · enumerated 2006.

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

National Provider Identifier

1821180597

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ronald E Wozniak, S.J.
Credential M.ED., LMHC, CCMHC
Sex Male
Practice address Weston, MA, 02493
Phone (781) 788-4790
Fax (781) 894-5864
Enumeration date Sep 29, 2006
Last updated in NPPES Sep 11, 2025

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 74 (MA) Primary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 74 (MA) 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 Ronald Wozniak, S.J. practice?
The practice location on file with NPPES is in Weston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ronald Wozniak, S.J.?
The National Provider Identifier (NPI) for Ronald Wozniak, S.J. is 1821180597, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

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