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About this NPIWhat this record shows.
NPI 1053502096 is registered to William Gustafson MD/PHD, a Pediatric Hematology & Oncology Physician practising at 505 Parnassus Ave # M647, Ucsf Pediatric Hematology/Oncology in San Francisco, California. Pediatric Hematology & Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Gustafson MD/PHD has been enumerated in the National Provider Identifier (NPI) registry since 2007.
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 Gustafson MD/PHD accepts. To confirm in-network status with your specific health plan, contact William Gustafson MD/PHD directly at (415) 476-3831.
Frequently asked
Yes. NPI 1053502096 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatric Hematology & Oncology 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 (415) 476-3831.
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 Gustafson MD/PHD is a Type-1 individual NPI.
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