Claire Sagartz MD
About this NPIWhat this record shows.
NPI 1245161876 is registered to Claire Sagartz MD, a Internal Medicine practising at 2650 Ridge Ave Ste 1304 in Evanston, Illinois. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Claire Sagartz MD has been enumerated in the National Provider Identifier (NPI) registry since 2026.
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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 Claire Sagartz MD accepts. To confirm in-network status with your specific health plan, contact Claire Sagartz MD directly at (847) 570-2000.
Frequently asked
Yes. NPI 1245161876 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 (847) 570-2000.
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. Claire Sagartz MD is a Type-1 individual NPI.