NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Renato Y Mandanas

Internal Medicine Physician in Oswego, NY · enumerated 2007 · authorized official Renato Mandanas, Owner/Employer.

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

National Provider Identifier

1235338625

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Renato Y Mandanas
Practice address 144 W 5th St, Oswego, NY, 13126
Phone (315) 342-1765
Fax (315) 342-1742
Enumeration date Jul 16, 2007
Last updated in NPPES Mar 2, 2026

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 152086 (NY) Primary

Authorized official

Name Renato Mandanas
Title Owner/Employer
Phone (315) 342-1765

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 type of organization is Renato Y Mandanas?
Renato Y Mandanas is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-02.