Catherine Mcmillan
About this NPIWhat this record shows.
NPI 1114580222 is registered to Catherine Mcmillan, a Internal Medicine practising at 30230 Rancho Viejo Rd Ste 200 in San Juan Capistrano, California. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Catherine Mcmillan has been enumerated in the National Provider Identifier (NPI) registry since 2019.
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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 Catherine Mcmillan accepts. To confirm in-network status with your specific health plan, contact Catherine Mcmillan directly at (949) 443-4303.
Frequently asked
Yes. NPI 1114580222 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 (949) 443-4303.
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. Catherine Mcmillan is a Type-1 individual NPI.