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Cynthia L Bartholow MD PC

Internal Medicine Physician in Wilmette, IL · enumerated 2010 · authorized official Cynthia Bartholow, Owner.

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

National Provider Identifier

1265754154

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Registry record

Entity type Organization (Type 2)
Legal business name Cynthia L Bartholow MD PC
Practice address 1921 Lake Ave Ste B, Wilmette, IL, 60091
Phone (847) 853-9100
Fax (847) 853-9103
Enumeration date Feb 19, 2010
Last updated in NPPES Mar 24, 2012

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036 081882 (IL) Primary

Authorized official

Name Cynthia Bartholow
Title Owner
Phone (847) 853-9100

Other identifiers

Identifier Type State Issuer
1102355559 Other IL MEDICARE RAILROAD PROVIDER PTAN
IL5671001 Other IL MEDICARE PTAN

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

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.
What type of organization is Cynthia L Bartholow MD PC?
Cynthia L Bartholow MD PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-24.