1. Home
  2. Directory
  3. California
  4. Van Nuys
  5. Counselor
  6. NPI Profile

CHALLA GREGORY
NPI 1821467580
Counselor - Addiction (Substance Use Disorder) in Van Nuys, CA

Active since September 23, 2015
14530 SYLVAN ST, VAN NUYS, CA 91411(818) 582-8832(818) 582-8836 Get Directions Write a Review

NPPES record last updated: March 23, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Challa Gregory NPPES

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

CHALLA GREGORY (NPI 1821467580) is an individual addiction (substance use disorder) provider in Van Nuys, California and active in the NPI registry since September 2015.

NPPES Registry Identity

NPI1821467580
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameCHALLA GREGORY
Location Address14530 SYLVAN STVan Nuys, CA 91411-2324
Mailing Address14530 Sylvan StVan Nuys, CA 91411-2324 · (818) 582-8832 · Fax (818) 582-8836
Phone(818) 582-8832
Fax(818) 582-8836
Sole ProprietorNo
Enumeration DateSeptember 23, 2015
Last NPPES UpdateMarch 23, 2026
NPPES CertifiedMarch 23, 2026
✔ NPI 1821467580 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
14530 SYLVAN ST, Van Nuys, CA 91411
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.

MS. BRENDA CORNEJO
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (818) 582-8832
MS. JESSICA ROSE SEIFERT RADT
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (818) 582-8832
MS. MARINA ESTHER FLORES RADT
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (818) 582-8832
MS. SANDRA JEAN ESTRADA C030530115
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (818) 582-8832
DAVID ZUCKERMAN LMFT
Marriage & Family Therapist
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (310) 459-5196
RENE MONTIJO A067980426
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (323) 222-1440
GABRIELA ELIZABETH RODRIGUEZ PHT
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (818) 582-8839
YESENIA SANCHEZ RADT
Counselor (Addiction (Substance Use Disorder))
14530 SYLVAN ST
VAN NUYS, CA 91411
Los Angeles County (818) 582-8832

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 Challa Gregory's NPI number?

The NPI number for Challa Gregory is 1821467580. It was assigned to this individual provider in the NPPES registry on September 23, 2015.

Where is Challa Gregory located?

Challa Gregory practices at 14530 Sylvan St, Van Nuys, CA 91411. The listed phone number is (818) 582-8832.

What is Challa Gregory'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 Challa Gregory was last updated on March 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.