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CALVIN WILLIAMS LCSW
NPI 1063228203
Counselor - Addiction (Substance Use Disorder) in Santa Ana, CA

Active since December 03, 2024
400 W CIVIC CENTER DR, SANTA ANA, CA 92701(714) 834-2345 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 27, 2026, Dec 3, 2024 (2 updates tracked since 2024).

About Calvin Williams Lcsw NPPES

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

CALVIN WILLIAMS LCSW (NPI 1063228203) is an individual addiction (substance use disorder) provider in Santa Ana, California and active in the NPI registry since December 2024.

NPPES Registry Identity

NPI1063228203
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameCALVIN WILLIAMSCredential: LCSW
Location Address400 W CIVIC CENTER DRSanta Ana, CA 92701-4521
Mailing Address400 W Civic Center DrSanta Ana, CA 92701-4521
Phone(714) 834-2345
Sole ProprietorYes
Enumeration DateDecember 3, 2024
Last NPPES UpdateJune 23, 20262 updates tracked since enumeration
NPPES CertifiedJune 23, 2026
✔ NPI 1063228203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X
400 W CIVIC CENTER DR, Santa Ana, CA 92701
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Other Providers at the Same Location NPPES 5

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

YESENIA SAMANO MSW
Social Worker
400 W CIVIC CENTER DR
SANTA ANA, CA 92701
Orange County (855) 886-5400
MISS APRIL MICHELLE JANNISE LCSW
Social Worker (Clinical)
400 W CIVIC CENTER DR
SANTA ANA, CA 92701
Orange County (714) 347-0363
MR. ANDREW STEWART PARKER LMFT
Marriage & Family Therapist
400 W CIVIC CENTER DR
SANTA ANA, CA 92701
Orange County (714) 834-5601
JINJIN LANG
Registered Nurse
400 W CIVIC CENTER DR
SANTA ANA, CA 92701
Orange County (951) 386-5204
TRONG BAO NGUYEN
Registered Nurse (Community Health)
400 W CIVIC CENTER DR
SANTA ANA, CA 92701
Orange County (714) 834-2555

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 Calvin Williams's NPI number?

The NPI number for Calvin Williams is 1063228203. It was assigned to this individual provider in the NPPES registry on December 3, 2024.

Where is Calvin Williams located?

Calvin Williams practices at 400 W Civic Center Dr, Santa Ana, CA 92701. The listed phone number is (714) 834-2345.

What is Calvin Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Calvin Williams was last updated on June 23, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.