Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Coleen Johnson, M.D.

General Acute Care Hospital in Chicago, IL · enumerated 2015.

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

National Provider Identifier

1235513664

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Registry record

Entity type Individual (Type 1)

Name Coleen Johnson

Credential M.D.

Sex Female

Practice address Chicago, IL, 60608

Phone (708) 406-5929

Enumeration date Jul 15, 2015

Last updated in NPPES Nov 19, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

282N00000X General Acute Care Hospital Hospitals · License 125066897 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Coleen Johnson's NPI record?

Cross-check NPI 1235513664 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1235513664 active?

Yes, as of the latest NPPES snapshot, NPI 1235513664 is active (record last updated 2021-11-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-19.