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

Dr. Tiffany Wen-An Guo, MD

Individual provider Internal Medicine Physician · NPI 1922549286

Dr. Tiffany Wen-An Guo, MD is an Internal Medicine Physician in San Jose, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2017
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

751 S Bascom Ave
San Jose, CA 95128-2604
Phone: (888) 334-1000
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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 A157135 (CA)

Record details

NPI number1922549286
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 19, 2017
Last updated in NPPESJuly 13, 2020
Certification dateJuly 13, 2020

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