Alexander Possner
NPI 1134883424 · Addiction (Substance Use Disorder) Counselor · Los Angeles, CA
Alexander Possner is a Addiction (Substance Use Disorder) Counselor provider in Los Angeles, CA (NPI 1134883424).
Provider details
- NPI number
- 1134883424
- 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
4 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
- 2021-10-24
- Last updated
- 2022-09-27
- Certified
- 2022-09-27
Frequently asked questions
- What is Alexander Possner's NPI number?
- Alexander Possner's National Provider Identifier (NPI) is 1134883424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Possner's specialty?
- Alexander Possner is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Alexander Possner located?
- Alexander Possner's practice location on file with NPPES is 4445 Burns Ave, Los Angeles, CA 90029-2702.
- What is Alexander Possner's phone number?
- The practice phone number listed in the NPPES registry for Alexander Possner is (323) 222-1440.
- Is Alexander Possner's NPI active?
- Yes — Alexander Possner's NPI (1134883424) is active in the NPPES registry as of the last update on 2022-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.