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About this NPIWhat this record shows.
NPI 1861352569 is registered to William Karr, a Independent Duty Corpsman practising at 1450 Market St Apt 359 in San Diego, California. Independent Duty Corpsman is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Karr has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans William Karr accepts. To confirm in-network status with your specific health plan, contact William Karr directly at (619) 548-3754.
Frequently asked
Yes. NPI 1861352569 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Independent Duty Corpsman is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
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 (619) 548-3754.
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. William Karr is a Type-1 individual NPI.
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