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

Dr. Michael David Santilli, DO

Family Medicine Physician in Countryside, IL · enumerated 2006.

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

National Provider Identifier

1497768865

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael David Santilli

Credential DO

Sex Male

Practice address Countryside, IL, 60525

Phone (708) 354-9405

Fax (708) 354-9140

Enumeration date Aug 15, 2006

Last updated in NPPES Jul 1, 2008

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 36103975 (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

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 1497768865 active?

Yes, as of the latest NPPES snapshot, NPI 1497768865 is active (record last updated 2008-07-01).

How do I verify Michael Santilli's NPI record?

Cross-check NPI 1497768865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-01.