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Dr. Brett Howard Herzog, MD PHD

Medical Oncology Physician in Shiloh, IL · enumerated 2015 · practices at Protestant Memorial Medical Center, Inc..

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

National Provider Identifier

1023499282

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Registry record

Entity type Individual (Type 1)
Name Dr. Brett Howard Herzog
Credential MD PHD
Sex Male
Practice address 1418 Cross St, Div Im Medical Oncology, Ste 180, Shiloh, IL, 62269
Phone (618) 607-1340
Fax (618) 622-9724
Enumeration date Jun 13, 2015
Last updated in NPPES Apr 21, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036153509 (IL) Secondary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 036153509 (IL) Primary

Other identifiers

Identifier Type State Issuer
200063716 Medicaid MO -

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

What is the NPI number for Brett Herzog?
The National Provider Identifier (NPI) for Brett Herzog is 1023499282, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brett Herzog practice?
The practice location on file with NPPES is in Shiloh, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-21.