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

Dr. Barbara Helen Greenstein, PHD

Individual provider Clinical Psychologist · NPI 1861414245

Dr. Barbara Helen Greenstein, PHD is a Clinical Psychologist in Alameda, California. Practices as a sole proprietor. Licensed in California.

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

1619 Seaborn Ct
Alameda, CA 94501-2529
Phone: (510) 521-1958
Fax: (510) 521-1958
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY7715 (CA)

Record details

NPI number1861414245
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 24, 2006
Last updated in NPPESJuly 24, 2026
Certification dateJuly 24, 2026

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