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

Edwin Colloff, MD

Individual provider Internal Medicine Physician · NPI 1851498489

Edwin Colloff, MD is an Internal Medicine Physician in Palo Alto, 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.

See every abbreviation used in this directory →

Practice location Address checks out

866 Campus Dr
Palo Alto, CA 94305-8508
Phone: (650) 498-2336
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G34055 (CA)

Record details

NPI number1851498489
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 17, 2006
Last updated in NPPESJuly 9, 2007

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