JUSTINE MARIE JOHNSON RADT
NPI 1609754720
Counselor - Addiction (Substance Use Disorder) in San Francisco, CA
About Justine Marie Johnson Radt NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTINE MARIE JOHNSON RADT (NPI 1609754720) is an individual addiction (substance use disorder) provider in San Francisco, California, licensed in California (R1611430525) and active in the NPI registry since August 2025. She maintains a secondary practice location in Santa Rosa.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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.
SAN FRANCISCO, CA 94124
SAN FRANCISCO, CA 94124
SAN FRANCISCO, CA 94124
SAN FRANCISCO, CA 94124
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 Justine Johnson's NPI number?
The NPI number for Justine Johnson is 1609754720. It was assigned to this individual provider in the NPPES registry on August 26, 2025.
Where is Justine Johnson located?
Justine Johnson practices at 1625 Carroll Ave, San Francisco, CA 94124. The listed phone number is (415) 822-8200.
What is Justine Johnson'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 Justine Johnson was last updated on February 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Justine Marie Johnson, RADT · NPI 1609754720
Addiction (Substance Use Disorder) provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 26, 2025.
## Identity
- **NPI:** 1609754720 (Entity type: Individual)
- **Enumerated:** August 26, 2025
- **Primary specialty:** Counselor - Addiction (Substance Use Disorder) · taxonomy 101YA0400X
- **State license:** R1611430525 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1625 CARROLL AVE, San Francisco, CA 94124-3219
- **Phone:** (415) 822-8200
## Record status
- **NPPES last updated:** February 10, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1609754720) · Data from the CMS NPPES public registry.