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

Dr. Charles Duncan Massey, PSYD

Individual provider Psychologist · NPI 1952531709

Dr. Charles Duncan Massey, PSYD is a Psychologist in Livermore, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2009
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

300 Pullman St Bldg B
Livermore, CA 94551-9756
Phone: (925) 457-5250
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY32099 (CA)

Record details

NPI number1952531709
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedJuly 14, 2009
Last updated in NPPESJanuary 20, 2022
Certification dateJanuary 20, 2022

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