CHELSEA REFFNER
NPI 1396661401
Counselor - Addiction (Substance Use Disorder) in Grass Valley, CA
About Chelsea Reffner NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHELSEA REFFNER (NPI 1396661401) is an individual addiction (substance use disorder) provider in Grass Valley, California, licensed in California (RT1448200626) and active in the NPI registry since June 2026.
NPPES Registry Identity
Specialties & Licenses
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.
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
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 Chelsea Reffner's NPI number?
The NPI number for Chelsea Reffner is 1396661401. It was assigned to this individual provider in the NPPES registry on June 24, 2026.
Where is Chelsea Reffner located?
Chelsea Reffner practices at 180 Sierra College Dr, Grass Valley, CA 95945. The listed phone number is (530) 273-9541.
What is Chelsea Reffner'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 Chelsea Reffner was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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.
# Chelsea Reffner · NPI 1396661401
Addiction (Substance Use Disorder) provider in Grass Valley, California. Individual provider, active in the CMS NPPES registry since June 24, 2026.
## Identity
- **NPI:** 1396661401 (Entity type: Individual)
- **Enumerated:** June 24, 2026
- **Primary specialty:** Counselor - Addiction (Substance Use Disorder) · taxonomy 101YA0400X
- **State license:** RT1448200626 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 180 SIERRA COLLEGE DR, Grass Valley, CA 95945-5768
- **Phone:** (530) 273-9541
## Record status
- **NPPES last updated:** July 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1396661401) · Data from the CMS NPPES public registry.