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MS. DIANA ISABEL HERNANDEZ
NPI 1588518443
Counselor - Addiction (Substance Use Disorder) in Grass Valley, CA

Active since February 25, 2026
256 BUENA VISTA ST STE 100, GRASS VALLEY, CA 95945(530) 274-2000 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Ms. Diana Isabel Hernandez NPPES

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

MS. DIANA ISABEL HERNANDEZ (NPI 1588518443) is an individual addiction (substance use disorder) provider in Grass Valley, California, licensed in California (RADT-T1420441025) and active in the NPI registry since February 2026.

NPPES Registry Identity

NPI1588518443
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameMS. DIANA ISABEL HERNANDEZ
Location Address256 BUENA VISTA ST STE 100Grass Valley, CA 95945-7239
Mailing Address105 Ophir St Apt BGrass Valley, CA 95945-6878 · (530) 274-2000
Phone(530) 274-2000
Sole ProprietorNo
Enumeration DateFebruary 25, 2026
NPPES CertifiedFebruary 25, 2026
✔ NPI 1588518443 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
License✔ Licensed in CA · RADT-T1420441025
256 BUENA VISTA ST STE 100, Grass Valley, CA 95945
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Other Providers at the Same Location NPPES 12

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

MISTY NAVO
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
LAURA JANE PAPKE
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
RAYMOND DAVID AGUILAR RADTI
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
SHAINON FIGUEROA SUDCC
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
COMMON PURPOSE
Community/Behavioral Health
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
MRS. ERIN MARIAH CLANTON
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
MR. JONATHON PATRICK MATOUSEK
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000
MISS KIMBERLY ANN PERCHES
Counselor (Addiction (Substance Use Disorder))
256 BUENA VISTA ST STE 100
GRASS VALLEY, CA 95945
Nevada County (530) 274-2000

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 Diana Hernandez's NPI number?

The NPI number for Diana Hernandez is 1588518443. It was assigned to this individual provider in the NPPES registry on February 25, 2026.

Where is Diana Hernandez located?

Diana Hernandez practices at 256 Buena Vista St Ste 100, Grass Valley, CA 95945. The listed phone number is (530) 274-2000.

What is Diana Hernandez'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 Diana Hernandez was last updated on February 25, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.