Dr. William Buchholz MD
About this NPIWhat this record shows.
NPI 1699774406 is registered to Dr. William Buchholz MD, a Hematology (Internal Medicine) Physician practising at 851 Fremont Ave, #104 in Los Altos, California. Hematology (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. William Buchholz MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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 Dr. William Buchholz MD accepts. To confirm in-network status with your specific health plan, contact Dr. William Buchholz MD directly at (650) 980-1982.
Frequently asked
Yes. NPI 1699774406 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hematology (Internal Medicine) Physician 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 (650) 980-1982.
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 Buchholz MD is a Type-1 individual NPI.