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

Individual provider Specialist · NPI 1508978024

William Desmond McCallum, MD is a Specialist in Mountain View, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

1580 W El Camino Real Ste 1
Mountain View, CA 94040-2461
Phone: (650) 964-1505
Fax: (650) 964-1522
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence A30537 (CA)

Record details

NPI number1508978024
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 31, 2006
Last updated in NPPESJuly 8, 2007

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