Karen Arnold, RADT
NPI 1902433451 · Addiction (Substance Use Disorder) Counselor · Grass Valley, CA
Karen Arnold, RADT is a Addiction (Substance Use Disorder) Counselor provider in Grass Valley, CA (NPI 1902433451).
Provider details
- NPI number
- 1902433451
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RADT
- Sex
- Female
- Sole proprietor
- No
- License
- R1377620220 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 145 Bost AveNevada City, CA 95959-3249Phone: (530) 273-9541
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2020-03-25
- Certified
- 2020-03-25
Frequently asked questions
- What is Karen Arnold's NPI number?
- Karen Arnold's National Provider Identifier (NPI) is 1902433451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Arnold's specialty?
- Karen Arnold is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Karen Arnold located?
- Karen Arnold's practice location on file with NPPES is 159 Brentwood Dr, Grass Valley, CA 95945-5703.
- What is Karen Arnold's phone number?
- The practice phone number listed in the NPPES registry for Karen Arnold is (530) 273-9541.
- Is Karen Arnold's NPI active?
- Yes — Karen Arnold's NPI (1902433451) is active in the NPPES registry as of the last update on 2020-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.