1. Home
  2. Directory
  3. California
  4. Los Angeles
  5. Student In An Organized Health Care Education Training Program
  6. NPI Profile

WILLIAM WARREN
NPI 1427946367
Student in an Organized Health Care Education/Training Program in Los Angeles, CA

Active since June 27, 2025
4221 WILSHIRE BLVD STE 300A, LOS ANGELES, CA 90010(888) 428-3223(323) 866-1881 Get Directions Write a Review

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

Record update history: Mar 26, 2026, Jun 27, 2025 (2 updates tracked since 2025).

About William Warren NPPES

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

WILLIAM WARREN (NPI 1427946367) is an individual student in an organized health care education/training program in Los Angeles, California and active in the NPI registry since June 2025.

NPPES Registry Identity

NPI1427946367
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameWILLIAM WARREN
Location Address4221 WILSHIRE BLVD STE 300ALos Angeles, CA 90010-3537
Mailing Address4221 Wilshire Blvd Ste 300aLos Angeles, CA 90010-3537 · (888) 428-3223 · Fax (323) 866-1881
Phone(888) 428-3223
Fax(323) 866-1881
Sole ProprietorNo
Enumeration DateJune 27, 2025
Last NPPES UpdateMarch 26, 20262 updates tracked since enumeration
NPPES CertifiedMarch 26, 2026
✔ NPI 1427946367 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Also ListedBehavior TechnicianTaxonomy 106S00000X
4221 WILSHIRE BLVD STE 300A, Los Angeles, CA 90010
Open in Google Maps ↗

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.

ADILENE RAMIREZ
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
ASHLYNN CLADY
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
AARYN JAMES
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
MADELINE VELASQUEZ AVILA
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
LESLIE GONZALEZ
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
SUSANNA ANDRADE
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
AMARA AWARDO
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223
JESSICA MARONEY
Behavior Technician
4221 WILSHIRE BLVD STE 300A
LOS ANGELES, CA 90010
Los Angeles County (888) 428-3223

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 William Warren's NPI number?

The NPI number for William Warren is 1427946367. It was assigned to this individual provider in the NPPES registry on June 27, 2025.

Where is William Warren located?

William Warren practices at 4221 Wilshire Blvd Ste 300A, Los Angeles, CA 90010. The listed phone number is (888) 428-3223.

What is William Warren's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for William Warren was last updated on March 26, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.