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Marek Belz LLC

Psychiatry Physician in Ridgewood, NJ · enumerated 2017 · authorized official Tomasz Oszczepalski, Manager.

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

National Provider Identifier

1619490950

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Registry record

Entity type Organization (Type 2)
Legal business name Marek Belz LLC
Practice address 65 N Maple Ave Ste 104, Ridgewood, NJ, 07450
Phone (374) 840-3917
Enumeration date Jul 19, 2017
Last updated in NPPES Jul 21, 2022

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 25MA09259100 (NJ) Primary
2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 25MA09259100 (NJ) Secondary

Authorized official

Name Tomasz Oszczepalski
Title Manager
Phone (973) 495-8518

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

Where is Marek Belz LLC located?
The practice location on file with NPPES is in Ridgewood, NJ.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-07-21. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.