Steven Siddell
NPI 1386164135 · Addiction (Substance Use Disorder) Counselor · Pasadena, CA
Steven Siddell is a Addiction (Substance Use Disorder) Counselor provider in Pasadena, CA (NPI 1386164135).
Provider details
- NPI number
- 1386164135
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- CATC102307 (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
9 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)
- 1230 N Marengo AvePasadena, CA 91103-2217Phone: (626) 797-1124Fax: (626) 398-9674
Registry dates
- Enumerated
- 2017-06-22
- Last updated
- 2022-07-21
Frequently asked questions
- What is Steven Siddell's NPI number?
- Steven Siddell's National Provider Identifier (NPI) is 1386164135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Siddell's specialty?
- Steven Siddell is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Steven Siddell located?
- Steven Siddell's practice location on file with NPPES is 225 Grandview St, Pasadena, CA 91104-2114.
- What is Steven Siddell's phone number?
- The practice phone number listed in the NPPES registry for Steven Siddell is (626) 797-1124.
- Is Steven Siddell's NPI active?
- Yes — Steven Siddell's NPI (1386164135) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.