Don Severn, CI21700218 (CADC 1 )
NPI 1841761699 · Addiction (Substance Use Disorder) Counselor · San Pablo, CA
Don Severn, CI21700218 (CADC 1 ) is a Addiction (Substance Use Disorder) Counselor provider in San Pablo, CA (NPI 1841761699).
Provider details
- NPI number
- 1841761699
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CI21700218 (CADC 1 )
- Sex
- Male
- Sole proprietor
- Yes
- License
- CI21700218 (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
7 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
- 2018-12-05
- Last updated
- 2018-12-05
Frequently asked questions
- What is Don Severn's NPI number?
- Don Severn's National Provider Identifier (NPI) is 1841761699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Don Severn's specialty?
- Don Severn is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Don Severn located?
- Don Severn's practice location on file with NPPES is 1515 Market Ave, San Pablo, CA 94806-4357.
- What is Don Severn's phone number?
- The practice phone number listed in the NPPES registry for Don Severn is (510) 619-3000.
- Is Don Severn's NPI active?
- Yes — Don Severn's NPI (1841761699) is active in the NPPES registry as of the last update on 2018-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.