Charles Groen MD
About this NPIWhat this record shows.
NPI 1497742860 is registered to Charles Groen MD, a Radiation Oncology Physician practising at 8915 W Golf Rd, 3rd Floor in Niles, Illinois. Radiation Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Charles Groen MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Source: NPPES public registry.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Charles Groen MD accepts. To confirm in-network status with your specific health plan, contact Charles Groen MD directly at (847) 827-9490.
Frequently asked
Yes. NPI 1497742860 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Radiation Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (847) 827-9490.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Charles Groen MD is a Type-1 individual NPI.