Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary Jack Davis, M.D.

Internal Medicine Physician in Evanston, IL · enumerated 2006.

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

National Provider Identifier

1588605745

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Registry record

Entity type Individual (Type 1)

Name Gary Jack Davis

Credential M.D.

Sex Male

Practice address 1000 Central St, Suite 640, Evanston, IL, 60201

Phone (847) 570-1410

Fax (847) 869-0520

Enumeration date Jun 9, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

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

Is NPI 1588605745 active?

Yes, as of the latest NPPES snapshot, NPI 1588605745 is active (record last updated 2025-09-11).

How do I verify Gary Davis's NPI record?

Cross-check NPI 1588605745 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.