Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marisha L. Cook, M. D

Allergy Physician in Rockford, IL · enumerated 2007.

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

National Provider Identifier

1356487904

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Registry record

Entity type Individual (Type 1)

Name Marisha L. Cook

Credential M. D

Sex Female

Practice address 2350 N Rockton Ave, Rockford, IL, 61103

Phone (815) 971-2000

Fax (815) 971-2585

Enumeration date Jan 30, 2007

Last updated in NPPES Feb 23, 2026

Taxonomy & licenses

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License 036128205 (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.

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Frequently asked questions

How do I verify Marisha Cook's NPI record?

Cross-check NPI 1356487904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1356487904 active?

Yes, as of the latest NPPES snapshot, NPI 1356487904 is active (record last updated 2026-02-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-23.