Deborah Friedman, RRW
NPI 1891029518 · Addiction (Substance Use Disorder) Counselor · Grass Valley, CA
Deborah Friedman, RRW is a Addiction (Substance Use Disorder) Counselor provider in Grass Valley, CA (NPI 1891029518).
Provider details
- NPI number
- 1891029518
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RRW
- Sex
- Female
- Sole proprietor
- No
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
16 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2009-09-28
- Last updated
- 2009-09-28
Frequently asked questions
- What is Deborah Friedman's NPI number?
- Deborah Friedman's National Provider Identifier (NPI) is 1891029518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Friedman's specialty?
- Deborah Friedman is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Deborah Friedman located?
- Deborah Friedman's practice location on file with NPPES is 440 Henderson St, Grass Valley, CA 95945-7374.
- What is Deborah Friedman's phone number?
- The practice phone number listed in the NPPES registry for Deborah Friedman is (530) 273-9541.
- Is Deborah Friedman's NPI active?
- Yes — Deborah Friedman's NPI (1891029518) is active in the NPPES registry as of the last update on 2009-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.