Sidney Walker
NPI 1144702218 · Addiction (Substance Use Disorder) Counselor · Long Beach, CA
Sidney Walker is a Addiction (Substance Use Disorder) Counselor provider in Long Beach, CA (NPI 1144702218).
Provider details
- NPI number
- 1144702218
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
83% 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
- 2018-09-05
- Last updated
- 2018-09-05
Frequently asked questions
- What is Sidney Walker's NPI number?
- Sidney Walker's National Provider Identifier (NPI) is 1144702218, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sidney Walker's specialty?
- Sidney Walker is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sidney Walker located?
- Sidney Walker's practice location on file with NPPES is 100 E Market St, Long Beach, CA 90805-5924.
- What is Sidney Walker's phone number?
- The practice phone number listed in the NPPES registry for Sidney Walker is (562) 428-4222.
- Is Sidney Walker's NPI active?
- Yes — Sidney Walker's NPI (1144702218) is active in the NPPES registry as of the last update on 2018-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.