Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Grant S Chavin, MD

Specialist in Homewood, IL · enumerated 2006.

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

National Provider Identifier

1548284730

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Registry record

Entity type Individual (Type 1)

Name Dr. Grant S Chavin

Credential MD

Sex Male

Practice address 17901 Governors Hwy, Suite 202, Homewood, IL, 60430

Phone (708) 888-8287

Fax (708) 957-4519

Enumeration date Jul 27, 2006

Last updated in NPPES Apr 16, 2025

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 036127701 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
200987870	Medicaid	IN	-
P00842461	Other	IN	MEDICARE RAILROAD

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 Grant Chavin's NPI record?

Cross-check NPI 1548284730 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1548284730 active?

Yes, as of the latest NPPES snapshot, NPI 1548284730 is active (record last updated 2025-04-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-16.