Walter Clark, CATC II
NPI 1811230980 · Addiction (Substance Use Disorder) Counselor · Riverside, CA
Walter Clark, CATC II is a Addiction (Substance Use Disorder) Counselor provider in Riverside, CA (NPI 1811230980).
Provider details
- NPI number
- 1811230980
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CATC II
- Sex
- Male
- Sole proprietor
- No
- License
- 3051-I (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
13 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
- 2013-03-27
- Last updated
- 2013-08-22
Frequently asked questions
- What is Walter Clark's NPI number?
- Walter Clark's National Provider Identifier (NPI) is 1811230980, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Clark's specialty?
- Walter Clark is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Walter Clark located?
- Walter Clark's practice location on file with NPPES is 3525 Presley Ave, Riverside, CA 92507-4453.
- What is Walter Clark's phone number?
- The practice phone number listed in the NPPES registry for Walter Clark is (951) 782-2400.
- Is Walter Clark's NPI active?
- Yes — Walter Clark's NPI (1811230980) is active in the NPPES registry as of the last update on 2013-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.