Dr. John Grieco MD
About this NPIWhat this record shows.
NPI 1023074770 is registered to Dr. John Grieco MD, a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician practising at 2650 Warrenville Rd, Suite 280 in Downers Grove, Illinois. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. John Grieco MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 526620· Issued by COOK GROUP
- 344390· Issued by DUPAGE GROUP
Medicaid
- 36057662IL
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20050117000039Cardiac SurgeryIL
Source: CMS PECOS public enrollment file.
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 Dr. John Grieco MD accepts. To confirm in-network status with your specific health plan, contact Dr. John Grieco MD directly at (630) 324-7900.
Frequently asked
Yes. NPI 1023074770 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Thoracic Surgery (Cardiothoracic Vascular Surgery) 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 (630) 324-7900.
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. Dr. John Grieco MD is a Type-1 individual NPI.