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

Dr. Seoni Joanna Llanes, PHD

Individual provider Clinical Neuropsychologist · NPI 1659431302

Dr. Seoni Joanna Llanes, PHD is a Clinical Neuropsychologist in Stanford, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

300 Pasteur Dr Rm H3109 Neurology And Neurological Services
Stanford, CA 94305-2200
Phone: (650) 498-7875
Fax: (650) 498-7868
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence PSY20364 (CA)

Record details

NPI number1659431302
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 11, 2006
Last updated in NPPESJanuary 9, 2009

Other providers in Stanford