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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.

STEVEN MILES FIERRO ACSW
NPI 1154286664
Social Worker - Clinical in Los Angeles, CA

Active since December 17, 2025
2116 ARLINGTON AVE STE 100, LOS ANGELES, CA 90018(323) 334-9000(323) 334-4437 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 29, 2026, Jan 6, 2026, Dec 23, 2025 and 1 more (4 updates tracked since 2025).

About Steven Miles Fierro Acsw NPPES

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

STEVEN MILES FIERRO ACSW (NPI 1154286664) is an individual clinical provider in Los Angeles, California, licensed in California (ACSW135801) and active in the NPI registry since December 2025.

NPPES Registry Identity

NPI1154286664
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameSTEVEN MILES FIERROCredential: ACSW
Location Address2116 ARLINGTON AVE STE 100Los Angeles, CA 90018-1300
Mailing Address2116 Arlington Ave Ste 100Los Angeles, CA 90018-1300 · (323) 334-9000 · Fax (323) 334-4437
Phone(323) 334-9000
Fax(323) 334-4437
Sole ProprietorNo
Enumeration DateDecember 17, 2025
Last NPPES UpdateJuly 29, 20264 updates tracked since enumeration
NPPES CertifiedJuly 29, 2026
✔ NPI 1154286664 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · ACSW135801
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
2116 ARLINGTON AVE STE 100, Los Angeles, CA 90018
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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.

ANGELINE NICOLE LOCH LCSW
Social Worker (Clinical)
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000
IRINA KIRAKOSIAN MA
Rehabilitation Practitioner
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000
KERI STRATMAN
Rehabilitation Practitioner
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000
EMILIO NUNEZ JR. RADT #R1514390723
Social Worker (Clinical)
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 294-4932
LEONELA MENDOZA A.S.
Case Manager/Care Coordinator
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000
KIANA JANEL MATTHEWS ASW 93673
Social Worker (Clinical)
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000
BAHAR NAWABI
Student in an Organized Health Care Education/Training Program
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000
AMANDA MARY CHAPMAN
Marriage & Family Therapist
2116 ARLINGTON AVE STE 100
LOS ANGELES, CA 90018
Los Angeles County (323) 334-9000

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 Steven Fierro's NPI number?

The NPI number for Steven Fierro is 1154286664. It was assigned to this individual provider in the NPPES registry on December 17, 2025.

Where is Steven Fierro located?

Steven Fierro practices at 2116 Arlington Ave Ste 100, Los Angeles, CA 90018. The listed phone number is (323) 334-9000.

What is Steven Fierro's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Steven Fierro was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.