Isabelle Marlene Chavez

Isabelle Marlene Chavez is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Pacoima, CA, registered in the NPPES registry with NPI 1528797248 since 2022.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1528797248
Entity type	Individual (Type 1)
Name	Isabelle Marlene Chavez
Sex	Female
Practice address	Pacoima, CA, 91331
Phone	8188002625
Enumeration date	2022-06-08
Last updated in NPPES	2022-06-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	—	CA

Copy-ready billing details

Provider: Isabelle Chavez
NPI: 1528797248
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Pacoima, CA, 91331

Verify this record

Cross-check NPI 1528797248 against the authoritative CMS record: view Isabelle Marlene Chavez on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Isabelle Chavez?

Isabelle Chavez is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-06-08.