Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. BARBARA HELEN GREENSTEIN PH.D
NPI 1861414245
Psychologist - Clinical in Alameda, CA

Q: What is Barbara Greenstein's NPI number?

The NPI number for Barbara Greenstein is 1861414245. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Q: What is Barbara Greenstein's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since July 24, 2006

1619 SEABORN CT, ALAMEDA, CA 94501(510) 521-1958(510) 521-1958 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Barbara Helen Greenstein Ph.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BARBARA HELEN GREENSTEIN PH.D (NPI 1861414245) is an individual clinical provider in Alameda, California, licensed in California (PSY7715) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1861414245

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. BARBARA HELEN GREENSTEINCredential: PH.D

Location Address1619 SEABORN CTAlameda, CA 94501-2529

Mailing Address1619 Seaborn CtAlameda, CA 94501-2529 · (510) 521-1958 · Fax (510) 521-8186

Phone(510) 521-1958

Fax(510) 521-1958

Sole ProprietorYes

Enumeration DateJuly 24, 2006

Last NPPES UpdateJuly 24, 2026

NPPES CertifiedJuly 24, 2026

✔ NPI 1861414245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY7715

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

1619 SEABORN CT, Alameda, CA 94501

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Barbara Greenstein's NPI number?

The NPI number for Barbara Greenstein is 1861414245. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Where is Barbara Greenstein located?

Barbara Greenstein practices at 1619 Seaborn Ct, Alameda, CA 94501. The listed phone number is (510) 521-1958.

What is Barbara Greenstein's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

What insurance does Barbara Greenstein accept?

Health plans from Providence Health Plan list Barbara Greenstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Barbara Greenstein was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.