Dr. William Lewis DO
About this NPIWhat this record shows.
NPI 1992364541 is registered to Dr. William Lewis DO, a Internal Medicine practising at 11050 Mt Belvedere Blvd in Fort Drum, New York. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. William Lewis DO has been enumerated in the National Provider Identifier (NPI) registry since 2019.
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. William Lewis DO accepts. To confirm in-network status with your specific health plan, contact Dr. William Lewis DO directly at (315) 774-7853.
Frequently asked
Yes. NPI 1992364541 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 (315) 774-7853.
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. William Lewis DO is a Type-1 individual NPI.