Lennon Gregor MD
About this NPIWhat this record shows.
NPI 1619618865 is registered to Lennon Gregor MD, a Internal Medicine practising at 1120 W Michigan St # Cl630 in Indianapolis, Indiana. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Lennon Gregor MD has been enumerated in the National Provider Identifier (NPI) registry since 2022.
Your brand here.
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
- I20250825000948Internal MedicineIN
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 Lennon Gregor MD accepts. To confirm in-network status with your specific health plan, contact Lennon Gregor MD directly at (317) 274-2686.
Frequently asked
Yes. NPI 1619618865 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
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 (317) 274-2686.
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. Lennon Gregor MD is a Type-1 individual NPI.