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

GREG BRENSILVER LCSW
NPI 1932413788
Social Worker in Martinez, CA

Active since August 04, 2010
150 MUIR RD, MARTINEZ, CA 94553(925) 372-2511 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Greg Brensilver Lcsw NPPES

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

GREG BRENSILVER LCSW (NPI 1932413788) is an individual social worker in Martinez, California and active in the NPI registry since August 2010.

NPPES Registry Identity

NPI1932413788
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameGREG BRENSILVERCredential: LCSW
Location Address150 MUIR RDMartinez, CA 94553-4668
Mailing Address1204 Oregon StBerkeley, CA 94702-2222
Phone(925) 372-2511
Sole ProprietorYes
Enumeration DateAugust 4, 2010
Last NPPES UpdateSeptember 1, 2026
NPPES CertifiedSeptember 1, 2026
✔ NPI 1932413788 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
150 MUIR RD, Martinez, CA 94553
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SAHIBA SINGH CHOWDHARY PSYD
Psychologist (Clinical)
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2557
NESLIHAN JAMES-KANGAL PHD
Psychologist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 370-4783
NIKKI ALONSO ATIS
Occupational Therapist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2000
DR. BERNADETTE M DUGONI PHARM D
Pharmacist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2390
PAMELA ADHLAKHA
Occupational Therapist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 370-4751
DR. ASHIQ MATHEW GEORGE M.D.
Psychiatry & Neurology (Psychiatry)
150 MUIR RD, MENTAL HEALTH CLINIC (116)
MARTINEZ, CA 94553
Contra Costa County (925) 372-2000
UMELO UGWOABA PHD, MPH
Psychologist
150 MUIR RD
MARTINEZ, CA 94553
Contra Costa County (925) 372-2558
BRENT RICHARD FERM PHD
Psychologist
150 MUIR RD, MENTAL HEALTH
MARTINEZ, CA 94553
Contra Costa County (925) 372-2105

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 Greg Brensilver's NPI number?

The NPI number for Greg Brensilver is 1932413788. It was assigned to this individual provider in the NPPES registry on August 4, 2010.

Where is Greg Brensilver located?

Greg Brensilver practices at 150 Muir Rd, Martinez, CA 94553. The listed phone number is (925) 372-2511.

What is Greg Brensilver's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Greg Brensilver was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.