William Davis, RADT
NPI 1679060230 · Addiction (Substance Use Disorder) Counselor · Grass Valley, CA
William Davis, RADT is a Addiction (Substance Use Disorder) Counselor provider in Grass Valley, CA (NPI 1679060230).
Provider details
- NPI number
- 1679060230
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RADT
- Sex
- Male
- Sole proprietor
- No
- License
- R1362390919 (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
8 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)
- 1820 Nevada StGridley, CA 95948-9343Phone: (530) 682-9334
Registry dates
- Enumerated
- 2018-04-19
- Last updated
- 2019-09-11
Frequently asked questions
- What is William Davis's NPI number?
- William Davis's National Provider Identifier (NPI) is 1679060230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Davis's specialty?
- William Davis is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Davis located?
- William Davis's practice location on file with NPPES is 159 Brentwood Dr, Grass Valley, CA 95945-5703.
- What is William Davis's phone number?
- The practice phone number listed in the NPPES registry for William Davis is (530) 271-1140.
- Is William Davis's NPI active?
- Yes — William Davis's NPI (1679060230) is active in the NPPES registry as of the last update on 2019-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.