Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Clay Gustafson, MD/PHD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1053502096

William Clay Gustafson, MD/PHD is a Pediatric Hematology & Oncology Physician in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007

Practice location Address checks out

505 Parnassus Ave # M647 Ucsf Pediatric Hematology/oncology
San Francisco, CA 94143-2204
Phone: (415) 476-3831
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence A103464 (CA)

Record details

NPI number1053502096
Entity typeIndividual (Type 1)
GenderMale
Credentials MD/PHD
Sole proprietorYes
NPI enumeratedAugust 6, 2007
Last updated in NPPESSeptember 15, 2012

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