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John A Hamby, MD

Surgery Physician in Elmhurst, IL · enumerated 2006.

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

National Provider Identifier

1134108657

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Registry record

Entity type Individual (Type 1)
Name John A Hamby
Credential MD
Sex Male
Practice address 1200 S York Rd, Suite 4220, Elmhurst, IL, 60126
Phone (630) 758-8838
Fax (630) 758-8846
Enumeration date Jan 12, 2006
Last updated in NPPES Sep 26, 2018

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036071975 (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
020041447 Other - RAILROAD MEDICARE

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

Where does John Hamby practice?
The practice location on file with NPPES is in Elmhurst, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Hamby?
The National Provider Identifier (NPI) for John Hamby is 1134108657, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-26.