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

Dr. William Blaschko, MD

Individual provider Emergency Medicine Physician · NPI 1891709689

Dr. William Blaschko, MD is an Emergency Medicine Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

400 Parnassus Ave
San Francisco, CA 94143-2202
Phone: (760) 674-3847
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G42865 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence G42865 (CA)

Record details

NPI number1891709689
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 28, 2006
Last updated in NPPESJanuary 28, 2021
Certification dateJanuary 28, 2021
Mailing address400 Parnassus Ave, San Francisco, CA 94143-2202

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