NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Margarita Etingen MD S.C.

Internal Medicine Physician in Buffalo Grove, IL · enumerated 2008 · authorized official Margarita Etingen, President.

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

National Provider Identifier

1669638516

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Margarita Etingen MD S.C.
Practice address 130 Pauline Ave, Buffalo Grove, IL, 60089
Phone (847) 215-1445
Enumeration date Jul 30, 2008
Last updated in NPPES Jul 30, 2008

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036.121009 (IL) Primary

Authorized official

Name Margarita Etingen
Title President
Phone (847) 215-1445

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 Margarita Etingen MD S.C.?
The NPI for Margarita Etingen MD S.C. is 1669638516, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Margarita Etingen MD S.C.?
NPPES lists Margarita Etingen (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-30.