Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martha Cook, M.S.W.

Q: What is the NPI number for Martha Cook?

The National Provider Identifier (NPI) for Martha Cook is 1457402810, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Oak Brook, IL · enumerated 2007.

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

National Provider Identifier

1457402810

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Registry record

Entity type Individual (Type 1)

Name Martha Cook

Credential M.S.W.

Sex Female

Practice address 2907 Butterfield Rd, Suite 240, Oak Brook, IL, 60523

Phone (630) 586-0900

Fax (630) 586-9990

Enumeration date Jan 14, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149000780 (IL) Primary

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 Martha Cook?

The National Provider Identifier (NPI) for Martha Cook is 1457402810, a Type 1 (individual) record in the CMS NPPES registry.

Where does Martha Cook practice?

The practice location on file with NPPES is in Oak Brook, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.