GEANNIE R JOHNSTON RADT-1
NPI 1710865480
Counselor - Addiction (Substance Use Disorder) in Fairfield, CA

Active since August 21, 2025
623 GREAT JONES ST, FAIRFIELD, CA 94533(707) 429-8888 Get Directions Write a Review

NPPES record last updated: August 21, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Geannie R Johnston Radt-1 NPPES

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

GEANNIE R JOHNSTON RADT-1 (NPI 1710865480) is an individual addiction (substance use disorder) provider in Fairfield, California, licensed in California (R1623900725) and active in the NPI registry since August 2025.

NPPES Registry Identity

NPI1710865480
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameGEANNIE R JOHNSTONCredential: RADT-1
Location Address623 GREAT JONES STFairfield, CA 94533-6005
Mailing Address623 Great Jones StFairfield, CA 94533-6005 · (707) 429-8888
Sole ProprietorYes
Enumeration DateAugust 21, 2025
NPPES CertifiedAugust 21, 2025
NPI 1710865480 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 · R1623900725
623 GREAT JONES ST, Fairfield, CA 94533

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.

Counselor (Addiction (Substance Use Disorder))
623 GREAT JONES ST
FAIRFIELD, CA 94533
Counselor (Addiction (Substance Use Disorder))
623 GREAT JONES ST
FAIRFIELD, CA 94533
Counselor (Addiction (Substance Use Disorder))
623 GREAT JONES ST
FAIRFIELD, CA 94533
Counselor (Addiction (Substance Use Disorder))
623 GREAT JONES ST
FAIRFIELD, CA 94533
Counselor
623 GREAT JONES ST
FAIRFIELD, CA 94533
Clinic/Center (Rehabilitation, Comprehensive Outpatient Rehabilitation Facility (CORF))
623 GREAT JONES ST
FAIRFIELD, CA 94533
Counselor
623 GREAT JONES ST
FAIRFIELD, CA 94533
Counselor (Addiction (Substance Use Disorder))
623 GREAT JONES ST
FAIRFIELD, CA 94533

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 Geannie Johnston's NPI number?

The NPI number for Geannie Johnston is 1710865480. It was assigned to this individual provider in the NPPES registry on August 21, 2025.

Where is Geannie Johnston located?

Geannie Johnston practices at 623 Great Jones St, Fairfield, CA 94533. The listed phone number is (707) 429-8888.

What is Geannie Johnston'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 Geannie Johnston was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.