NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mazolewski Oc Medical PC

Physical Medicine & Rehabilitation Physician in San Juan Capistrano, CA · enumerated 2011 · authorized official Peter Mazolewski, Vice President.

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

National Provider Identifier

1841581162

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mazolewski Oc Medical PC
Practice address 31461 Rancho Viejo Rd, Ste 103, San Juan Capistrano, CA, 92675
Phone (949) 481-8282
Fax (949) 218-6303
Enumeration date Apr 20, 2011
Last updated in NPPES Apr 20, 2011

Taxonomy & classification

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License A84094 (CA) Primary

Authorized official

Name Peter Mazolewski
Title Vice President
Phone (949) 481-8282

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 Mazolewski Oc Medical PC?
The NPI for Mazolewski Oc Medical PC is 1841581162, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mazolewski Oc Medical PC?
NPPES lists Peter Mazolewski (Vice President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-20.