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James E Harley, MD

Hospitalist Physician in Mchenry, IL · enumerated 2006.

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

National Provider Identifier

1174582738

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Registry record

Entity type Individual (Type 1)
Name James E Harley
Credential MD
Sex Male
Practice address 4309 W Medical Center Dr Ste A102, Mchenry, IL, 60050
Phone (815) 338-6600
Enumeration date Mar 22, 2006
Last updated in NPPES Mar 1, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036-096836 (IL) Secondary
207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 036096836 (IL) Secondary
207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 01050245 (IN) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036096836 (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
615318700 Other IL US DEPT OF LABOR: 2222 W. DIVISION ST - LOC 2
615318701 Other IL US DEPT OF LABOR: 2001 S. CALIFORNIA AVE - LOC 1
036096836 Other IL STATE LICENSE
200224170 Medicaid IN -

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 James Harley?
The National Provider Identifier (NPI) for James Harley is 1174582738, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Harley practice?
The practice location on file with NPPES is in Mchenry, 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 2023-03-01.