Arthur Clark
NPI 1720378896 · Addiction (Substance Use Disorder) Counselor · Riverside, CA
Arthur Clark is a Addiction (Substance Use Disorder) Counselor provider in Riverside, CA (NPI 1720378896).
Provider details
- NPI number
- 1720378896
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- LCI11220418 (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
15 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2011-04-11
- Last updated
- 2023-11-20
- Certified
- 2023-11-20
Frequently asked questions
- What is Arthur Clark's NPI number?
- Arthur Clark's National Provider Identifier (NPI) is 1720378896, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Clark's specialty?
- Arthur Clark is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Arthur Clark located?
- Arthur Clark's practice location on file with NPPES is 2085 Rustin Ave, Riverside, CA 92507-2498.
- What is Arthur Clark's phone number?
- The practice phone number listed in the NPPES registry for Arthur Clark is (951) 220-9964.
- Is Arthur Clark's NPI active?
- Yes — Arthur Clark's NPI (1720378896) is active in the NPPES registry as of the last update on 2023-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.