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

Dr. Shannon Grethel, PSYD

Individual provider Clinical Neuropsychologist · NPI 1629256607

Dr. Shannon Grethel, PSYD is a Clinical Neuropsychologist in Vallejo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

975 Sereno Dr Kfrc- Neuropsychology Dept
Vallejo, CA 94589-2441
Phone: (832) 370-7960
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence PSY21763 (CA)

Record details

NPI number1629256607
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedFebruary 1, 2008
Last updated in NPPESMay 22, 2009
Mailing address975 Sereno Dr, Kfrc- Neuropsychology Department, Vallejo, CA 94589-2441

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