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

Athanasios Tsiatis, MD

Individual provider Molecular Genetic Pathology (Pathology) Physician · NPI 1417004391

Athanasios Tsiatis, MD is a Molecular Genetic Pathology (Pathology) Physician in South San Francisco, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
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

323 Allerton Ave
South San Francisco, CA 94080
Phone: (650) 466-7125
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Molecular Genetic Pathology (Pathology) Physician (primary) Taxonomy 207ZP0007X · Licence A118439 (CA)

Record details

NPI number1417004391
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2007
Last updated in NPPESNovember 20, 2021
Certification dateNovember 20, 2021

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