Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Edwin John Cook, D.O.

Nephrology Physician in Olympia Fields, IL · enumerated 2006 · practices at Midwest Physician Group Ltd.

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

National Provider Identifier

1508952011

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Registry record

Entity type Individual (Type 1)

Name Edwin John Cook

Credential D.O.

Sex Male

Practice address 4001 Vollmer Rd., Olympia Fields, IL, 60461

Phone (708) 481-8883

Fax (708) 481-2917

Enumeration date Oct 4, 2006

Last updated in NPPES Jul 22, 2015

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036054673 (IL) Primary

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
036054673	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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Edwin Cook?

Edwin Cook is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-22.