John Cornelius Penner, MD
About this NPIWhat this record shows.
NPI 1003626458 is registered to John Cornelius Penner, MD, a healthcare organisation classified as "Internal Medicine" and located at 69 Hernandez Ave in Los Gatos, California. The organisation's authorised official is Traci Crosby. The organisation has been enumerated in the NPI registry since 2025.
Your brand here.
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 John Cornelius Penner, MD accepts. To confirm in-network status with your specific health plan, contact John Cornelius Penner, MD directly at (408) 204-6990.
Frequently asked
Yes. NPI 1003626458 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 (408) 204-6990.
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. John Cornelius Penner, MD is a Type-2 organisational NPI.