DIANNA L COLLIER
NPI 1255514337
Social Worker in Concord, CA

Active since December 11, 2007
2425 BISSO LN, #280, CONCORD, CA 94520(925) 646-5122 Get Directions Write a Review

NPPES record last updated: December 11, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dianna L Collier NPPES

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

DIANNA L COLLIER (NPI 1255514337) is an individual social worker in Concord, California and active in the NPI registry since December 2007.

NPPES Registry Identity

NPI1255514337
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameDIANNA L COLLIER
Location Address2425 BISSO LN, #280Concord, CA 94520-4897
Mailing Address37201 Paseo Padre Pkwy, #103Fremont, CA 94536-2542 · (510) 797-2413
Sole ProprietorYes
Enumeration DateDecember 11, 2007
NPI 1255514337 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.

2425 BISSO LN, Concord, CA 94520

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.

Counselor (Mental Health)
2425 BISSO LN, SUITE 100
CONCORD, CA 94520
Registered Nurse
2425 BISSO LN, 100
CONCORD, CA 94520
Psychiatry & Neurology (Child & Adolescent Psychiatry)
2425 BISSO LN, SITE 280
CONCORD, CA 94520
Registered Nurse
2425 BISSO LN, SUITE 100
CONCORD, CA 94520
Psychologist (Clinical)
2425 BISSO LN, SUITE 100
CONCORD, CA 94520
Counselor (Mental Health)
2425 BISSO LN, SUITE 120
CONCORD, CA 94520
Marriage & Family Therapist
2425 BISSO LN
CONCORD, CA 94520
Registered Nurse (Psychiatric/Mental Health, Adult)
2425 BISSO LN
CONCORD, CA 94520

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 Dianna Collier's NPI number?

The NPI number for Dianna Collier is 1255514337. It was assigned to this individual provider in the NPPES registry on December 11, 2007.

Where is Dianna Collier located?

Dianna Collier practices at 2425 Bisso Ln #280, Concord, CA 94520. The listed phone number is (925) 646-5122.

What is Dianna Collier'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 Dianna Collier was last updated on December 11, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.