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

Joseph Anthony Callahan, MD

Individual provider Anesthesiology Physician · NPI 1992714240

Joseph Anthony Callahan, MD is an Anesthesiology Physician in Fremont, 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

2000 Mowry Ave
Fremont, CA 94538-1716
Phone: (510) 494-1111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence G54740 (CA)

Record details

NPI number1992714240
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 5, 2006
Last updated in NPPESJuly 8, 2007

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