Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Elena Koles, M.D.

Q: What type of organization is Elena Koles, M.D.?

Elena Koles, M.D. is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in Northbrook, IL · enumerated 2006 · authorized official Elena Koles, Medical Director.

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

National Provider Identifier

1699840157

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Registry record

Entity type Organization (Type 2)

Legal business name Elena Koles, M.D.

Practice address 666 Dundee Rd Ste 602, Northbrook, IL, 60062

Phone (847) 291-0900

Enumeration date Nov 21, 2006

Last updated in NPPES Jun 27, 2008

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036095112 (IL) Primary

Authorized official

Name Elena Koles

Title Medical Director

Phone (847) 219-0900

Other identifiers

Identifier	Type	State	Issuer
036095112	Medicaid	IL	-

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 Elena Koles, M.D.?

Elena Koles, M.D. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-27.